LPC178x/7x
32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and
96 kB SRAM; USB Device/Host/OTG; Ethernet; LCD; EMC
Rev. 5.5 — 26 April 2016
Product data sheet
1. General description
The LPC178x/7x is an ARM Cortex-M3 based microcontroller for embedded applications
requiring a high level of integration and low power dissipation.
The ARM Cortex-M3 is a next generation core that offers better performance than the
ARM7 at the same clock rate and other system enhancements such as modernized
debug features and a higher level of support block integration. The ARM Cortex-M3 CPU
incorporates a 3-stage pipeline and has a Harvard architecture with separate local
instruction and data buses, as well as a third bus with slightly lower performance for
peripherals. The ARM Cortex-M3 CPU also includes an internal prefetch unit that
supports speculative branches.
The LPC178x/7x adds a specialized flash memory accelerator to accomplish optimal
performance when executing code from flash. The LPC178x/7x operates at up to
120 MHz CPU frequency.
The peripheral complement of the LPC178x/7x includes up to 512 kB of flash program
memory, up to 96 kB of SRAM data memory, up to 4032 byte of EEPROM data memory,
External Memory Controller (EMC), LCD (LPC178x only), Ethernet, USB
Device/Host/OTG, a General Purpose DMA controller, five UARTs, three SSP controllers,
three I2C-bus interfaces, a Quadrature Encoder Interface, four general purpose timers,
two general purpose PWMs with six outputs each and one motor control PWM, an
ultra-low power RTC with separate battery supply and event recorder, a windowed
watchdog timer, a CRC calculation engine, up to 165 general purpose I/O pins, and more.
The analog peripherals include one eight-channel 12-bit ADC and a 10-bit DAC.
The pinout of LPC178x/7x is intended to allow pin function compatibility with the LPC24xx
and LPC23xx.
For additional documentation, see Section 18 “References”.
2. Features and benefits
Functional replacement for the LPC23xx and LPC24xx family devices.
System:
ARM Cortex-M3 processor, running at frequencies of up to 120 MHz. A Memory
Protection Unit (MPU) supporting eight regions is included.
ARM Cortex-M3 built-in Nested Vectored Interrupt Controller (NVIC).
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
LPC178X_7X
Product data sheet
Multilayer AHB matrix interconnect provides a separate bus for each AHB master.
AHB masters include the CPU, USB, Ethernet, and the General Purpose DMA
controller. This interconnect provides communication with no arbitration delays
unless two masters attempt to access the same slave at the same time.
Split APB bus allows for higher throughput with fewer stalls between the CPU and
DMA. A single level of write buffering allows the CPU to continue without waiting for
completion of APB writes if the APB was not already busy.
Cortex-M3 system tick timer, including an external clock input option.
Standard JTAG test/debug interface as well as Serial Wire Debug and Serial
WireTrace Port options.
Embedded Trace Macrocell (ETM) module supports real-time trace.
Boundary scan for simplified board testing.
Non-maskable Interrupt (NMI) input.
Memory:
Up to 512 kB on-chip flash program memory with In-System Programming (ISP)
and In-Application Programming (IAP) capabilities. The combination of an
enhanced flash memory accelerator and location of the flash memory on the CPU
local code/data bus provides high code performance from flash.
Up to 96 kB on-chip SRAM includes:
64 kB of main SRAM on the CPU with local code/data bus for high-performance
CPU access.
Two 16 kB peripheral SRAM blocks with separate access paths for higher
throughput. These SRAM blocks may be used for DMA memory as well as for
general purpose instruction and data storage.
Up to 4032 byte on-chip EEPROM.
LCD controller, supporting both Super-Twisted Nematic (STN) and Thin-Film
Transistors (TFT) displays.
Dedicated DMA controller.
Selectable display resolution (up to 1024 768 pixels).
Supports up to 24-bit true-color mode.
External Memory Controller (EMC) provides support for asynchronous static memory
devices such as RAM, ROM and flash, as well as dynamic memories such as single
data rate SDRAM with an SDRAM clock of up to 80 MHz.
Eight channel General Purpose DMA controller (GPDMA) on the AHB multilayer
matrix that can be used with the SSP, I2S, UART, CRC engine, Analog-to-Digital and
Digital-to-Analog converter peripherals, timer match signals, GPIO, and for
memory-to-memory transfers.
Serial interfaces:
Ethernet MAC with MII/RMII interface and associated DMA controller. These
functions reside on an independent AHB.
USB 2.0 full-speed dual-port device/host/OTG controller with on-chip PHY and
associated DMA controller.
Five UARTs with fractional baud rate generation, internal FIFO, DMA support, and
RS-485/EIA-485 support. One UART (UART1) has full modem control I/O, and one
UART (USART4) supports IrDA, synchronous mode, and a smart card mode
conforming to ISO7816-3.
Three SSP controllers with FIFO and multi-protocol capabilities. The SSP
controllers can be used with the GPDMA.
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32-bit ARM Cortex-M3 microcontroller
Three enhanced I2C-bus interfaces, one with a true open-drain output supporting
the full I2C-bus specification and Fast-mode Plus with data rates of 1 Mbit/s, two
with standard port pins. Enhancements include multiple address recognition and
monitor mode.
I2S-bus (Inter-IC Sound) interface for digital audio input or output. It can be used
with the GPDMA.
CAN controller with two channels.
Digital peripherals:
SD/MMC memory card interface.
Up to 165 General Purpose I/O (GPIO) pins depending on the packaging with
configurable pull-up/down resistors, open-drain mode, and repeater mode. All
GPIOs are located on an AHB bus for fast access and support Cortex-M3
bit-banding. GPIOs can be accessed by the General Purpose DMA Controller. Any
pin of ports 0 and 2 can be used to generate an interrupt.
Two external interrupt inputs configurable as edge/level sensitive. All pins on port 0
and port 2 can be used as edge sensitive interrupt sources.
Four general purpose timers/counters with a total of eight capture inputs and ten
compare outputs. Each timer block has an external count input. Specific timer
events can be selected to generate DMA requests.
Quadrature encoder interface that can monitor one external quadrature encoder.
Two standard PWM/timer blocks with external count input option.
One motor control PWM with support for three-phase motor control.
Real-Time Clock (RTC) with a separate power domain. The RTC is clocked by a
dedicated RTC oscillator. The RTC block includes 20 bytes of battery-powered
backup registers, allowing system status to be stored when the rest of the chip is
powered off. Battery power can be supplied from a standard 3 V lithium button cell.
The RTC will continue working when the battery voltage drops to as low as 2.1 V.
An RTC interrupt can wake up the CPU from any reduced power mode.
Event Recorder that can capture the clock value when an event occurs on any of
three inputs. The event identification and the time it occurred are stored in
registers. The Event Recorder is located in the RTC power domain and can
therefore operate as long as there is RTC power.
Windowed Watchdog Timer (WWDT). Windowed operation, dedicated internal
oscillator, watchdog warning interrupt, and safety features.
CRC Engine block can calculate a CRC on supplied data using one of three
standard polynomials. The CRC engine can be used in conjunction with the DMA
controller to generate a CRC without CPU involvement in the data transfer.
Analog peripherals:
12-bit Analog-to-Digital Converter (ADC) with input multiplexing among eight pins,
conversion rates up to 400 kHz, and multiple result registers. The 12-bit ADC can
be used with the GPDMA controller.
10-bit Digital-to-Analog Converter (DAC) with dedicated conversion timer and
GPDMA support.
Power control:
Four reduced power modes: Sleep, Deep-sleep, Power-down, and Deep
power-down.
LPC178X_7X
Product data sheet
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LPC178x/7x
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32-bit ARM Cortex-M3 microcontroller
The Wake-up Interrupt Controller (WIC) allows the CPU to automatically wake up
from any priority interrupt that can occur while the clocks are stopped in
Deep-sleep, Power-down, and Deep power-down modes.
Processor wake-up from Power-down mode via any interrupt able to operate
during Power-down mode (includes external interrupts, RTC interrupt, PORT0/2
pin interrupt, and NMI).
Brownout detect with separate threshold for interrupt and forced reset.
On-chip Power-On Reset (POR).
Clock generation:
Clock output function that can reflect the main oscillator clock, IRC clock, RTC
clock, CPU clock, USB clock, or the watchdog timer clock.
On-chip crystal oscillator with an operating range of 1 MHz to 25 MHz.
12 MHz Internal RC oscillator (IRC) trimmed to 1% accuracy that can optionally be
used as a system clock.
An on-chip PLL allows CPU operation up to the maximum CPU rate without the
need for a high-frequency crystal. May be run from the main oscillator or the
internal RC oscillator.
A second, dedicated PLL may be used for USB interface in order to allow added
flexibility for the Main PLL settings.
Versatile pin function selection feature allows many possibilities for using on-chip
peripheral functions.
Unique device serial number for identification purposes.
Single 3.3 V power supply (2.4 V to 3.6 V). Temperature range of 40 C to 85 C.
Available as LQFP208, TFBGA208, TFBGA180, and LQFP144 package.
3. Applications
Communications:
Point-of-sale terminals, web servers, multi-protocol bridges
Industrial/Medical:
Automation controllers, application control, robotics control, HVAC, PLC, inverters,
circuit breakers, medical scanning, security monitoring, motor drive, video intercom
Consumer/Appliance:
Audio, MP3 decoders, alarm systems, displays, printers, scanners, small
appliances, fitness equipment
Automotive:
After-market, car alarms, GPS/fleet monitors
LPC178X_7X
Product data sheet
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Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
4 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
4. Ordering information
Table 1.
Ordering information
Type number
Package
Name
Description
Version
LPC1788
LPC1788FBD208
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LPC1788FET208
TFBGA208
plastic thin fine-pitch ball grid array package; 208 balls; body
15 ´ 15 ´ 0.7 mm
SOT950-1
LPC1788FET180
TFBGA180
thin fine-pitch ball grid array package; 180 balls; body 12 ´ 12 ´ 0.8 mm
SOT570-3
LPC1788FBD144
LQFP144
plastic low profile quad flat package; 144 leads; body 20 20 1.4 mm
SOT486-1
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LPC1787
LPC1787FBD208
LPC1786
LPC1786FBD208
LPC1785
LPC1785FBD208
LPC1778
LPC1778FBD208
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LPC1778FET208
TFBGA208
plastic thin fine-pitch ball grid array package; 208 balls; body
15 ´ 15 ´ 0.7 mm
SOT950-1
LPC1778FET180
TFBGA180
thin fine-pitch ball grid array package; 180 balls; body 12 ´ 12 ´ 0.8 mm
SOT570-3
LPC1778FBD144
LQFP144
plastic low profile quad flat package; 144 leads; body 20 20 1.4 mm
SOT486-1
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LPC1776FBD208
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LPC1776FET180
TFBGA180
thin fine-pitch ball grid array package; 180 balls; body 12 ´ 12 ´ 0.8 mm
SOT570-3
LPC1774FBD208
LQFP208
plastic low profile quad flat package; 208 leads; body 28 28 1.4 mm
SOT459-1
LPC1774FBD144
LQFP144
plastic low profile quad flat package; 144 leads; body 20 20 1.4 mm
SOT486-1
LPC1777
LPC1777FBD208
LPC1776
LPC1774
LPC178X_7X
Product data sheet
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LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
GPIO
QEI
SD/
MMC
165 Y
Y
Y
LPC1788FET208
LPC1788FET208,551
64
16 2 96
4032 Y
H/O/D 5
32
165 Y
Y
Y
LPC1788FET180
LCD
EMC bus
width (bit) [1]
32
UART
H/O/D 5
USB
4032 Y
Ethernet
16 2 96
EEPROM
(byte)
64
Total SRAM
(kB)
Peripheral
SRAM (kB)
LPC1788FBD208 LPC1788FBD208/CP3E 512
Flash
(kB)
Main SRAM
(kB)
Device order
part number
Type number
Table 2.
LPC178x/7x ordering options
All parts include two CAN channels, three SSP interfaces, three I2C interfaces, one I2S interface, DAC, and an 8-channel
12-bit ADC.
LPC178x
512
LPC1788FET180,551
512
64
16 2 96
4032 Y
H/O/D 5
16
141 Y
Y
Y
LPC1788FBD144 LPC1788FBD144,551
512
64
16 2 96
4032 Y
H/O/D 5
8
109 Y
Y
Y
LPC1787FBD208 LPC1787FBD208,551
512
64
16 2 96
4032 N
H/O/D 5
32
165 Y
Y
Y
LPC1786FBD208 LPC1786FBD208,551
256
64
16
80
4032 Y
H/O/D 5
32
165 Y
Y
Y
LPC1785FBD208 LPC1785FBD208K
256
64
16
80
4032 N
H/O/D 5
32
165 Y
N
Y
LPC1778FBD208 LPC1778FBD208,551
512
64
16 2 96
4032 Y
H/O/D 5
32
165 N Y
Y
LPC1778FET208
LPC1778FET208,551
512
64
16 2 96
4032 Y
H/O/D 5
32
165 N Y
Y
LPC1778FET180
LPC177x
LPC1778FET180,551
512
64
16 2 96
4032 Y
H/O/D 5
16
141 N Y
Y
LPC1778FBD144 LPC1778FBD144,551
512
64
16 2 96
4032 Y
H/O/D 5
8
109 N Y
Y
LPC1777FBD208 LPC1777FBD208,551
512
64
16 2 96
4032 N
H/O/D 5
32
165 N Y
Y
LPC1776FBD208 LPC1776FBD208,551
256
64
16
4032 Y
H/O/D 5
32
165 N Y
Y
LPC1776FET180
80
LPC1776FET180,551
256
64
16
80
4032 Y
H/O/D 5
16
141 N Y
Y
LPC1774FBD208 LPC1774FBD208,551
128
32
8
40
2048 N
D
5
32
165 N N
N
LPC1774FBD144 LPC1774FBD144,551
128
32
8
40
2048 N
D
4[2] 8
109 N N
N
[1]
Maximum data bus width of the External Memory Controller (EMC) depends on package size. Smaller widths may be used.
[2]
USART4 not available.
LPC178X_7X
Product data sheet
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LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
5. Block diagram
slave
JTAG
interface
LPC178x/7x
TEST/DEBUG
INTERFACE
ARM
CORTEX-M3
I-code
bus
GPDMA
CONTROLLER
MPU
EMULATION
TRACE MODULE
debug
port
D-code
bus
system
bus
ETHERNET(1)
master
master
USB
DEVICE/
HOST(1)/OTG(1)
CLOCK
GENERATION,
POWER CONTROL,
SYSTEM
FUNCTIONS
clocks and
controls
master
slave
EMC
ROM
slave
slave
LCD(1)
MULTILAYER AHB MATRIX
slave
slave
HIGH-SPEED
GPIO
CRC
APB slave group 0
slave
slave
AHB TO
APB
BRIDGE 0
SRAM
96/80/40 kB
AHB TO
APB
BRIDGE 1
SSP1
slave
FLASH
ACCELERATOR
FLASH
512/256/128/64 kB
4032 B/
2048 B
EEPROM
APB slave group 1
SSP0/2
UART0/1
UART2/3
I2C0/1
USART4(1)
CAN 0/1
I2C2
TIMER 0/1
SD/MMC(1)
WINDOWED WDT
TIMER2/3
PWM0/1
QUADRATURE ENCODER(1)
12-bit ADC
DAC
PIN CONNECT
I2S
GPIO INTERRUPT CONTROL
MOTOR CONTROL PWM
EVENT RECORDER
32 kHz
OSCILLATOR
SYSTEM CONTROL
RTC
BACKUP REGISTERS
= connected to GPDMA
RTC POWER DOMAIN
002aaf528
(1) Not available on all parts. See Table 2.
Fig 1.
Block diagram
LPC178X_7X
Product data sheet
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LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
6. Pinning information
157
208
6.1 Pinning
1
156
LPC178x/7xFBD208
105
53
104
52
Fig 2.
002aaf518
Pin configuration (LQFP208)
ball A1
index area
2
1
4
3
6
5
8
7
9
10 12 14 16
11 13 15 17
A
B
C
D
E
F
G
H
J
LPC178x/7x
K
L
M
N
P
R
T
U
002aaf529
Transparent top view
Fig 3.
LPC178X_7X
Product data sheet
Pin configuration (TFBGA208)
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LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
ball A1
index area
LPC178x/7x
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
B
C
D
E
F
G
H
J
K
L
M
N
P
002aaf519
Transparent top view
109
Pin configuration (TFBGA180)
144
Fig 4.
1
108
LPC178x/7x
Fig 5.
72
73
37
36
002aaf520
Pin configuration (LQFP144)
6.2 Pin description
I/O pins on the LPC178x/7x are 5 V tolerant and have input hysteresis unless otherwise
indicated in the table below. Crystal pins, power pins, and reference voltage pins are not
5 V tolerant. In addition, when pins are selected to be ADC inputs, they are no longer 5 V
tolerant and the input voltage must be limited to the voltage at the ADC positive reference
pin (VREFP).
All port pins Pn[m] are multiplexed, and the multiplexed functions appear in Table 3 in the
order defined by the FUNC bits of the corresponding IOCON register up to the highest
used function number. Each port pin can support up to eight multiplexed functions.
IOCON register FUNC values which are reserved are noted as ‘R’ in the pin configuration
table.
LPC178X_7X
Product data sheet
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LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P0[0] to
P0[31]
P0[0]
P0[1]
P0[2]
P0[3]
P0[4]
Type[2]
Reset state[1]
Description
Pin LQFP144
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
94
96
U15
T14
202 C4
204 D6
168 B12
LPC178X_7X
Product data sheet
M10 66
N11
D5
A3
A11
67
141
142
116
[3]
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
Port 0: Port 0 is a 32-bit I/O port with individual direction
controls for each bit. The operation of port 0 pins depends upon
the pin function selected via the pin connect block.
I/O
P0[0] — General purpose digital input/output pin.
I
CAN_RD1 — CAN1 receiver input.
O
U3_TXD — Transmitter output for UART3.
I/O
I2C1_SDA — I2C1 data input/output (this pin does not use a
specialized I2C pad).
O
U0_TXD — Transmitter output for UART0.
I/O
P0[1] — General purpose digital input/output pin.
O
CAN_TD1 — CAN1 transmitter output.
I
U3_RXD — Receiver input for UART3.
I/O
I2C1_SCL — I2C1 clock input/output (this pin does not use a
specialized I2C pad).
I
U0_RXD — Receiver input for UART0.
I/O
P0[2] — General purpose digital input/output pin.
O
U0_TXD — Transmitter output for UART0.
O
U3_TXD — Transmitter output for UART3.
I/O
P0[3] — General purpose digital input/output pin.
I
U0_RXD — Receiver input for UART0.
I
U3_RXD — Receiver input for UART3.
I/O
P0[4] — General purpose digital input/output pin.
I/O
I2S_RX_SCK — I2S Receive clock. It is driven by the master
and received by the slave. Corresponds to the signal SCK in the
I2S-bus specification.
I
CAN_RD2 — CAN2 receiver input.
I
T2_CAP0 — Capture input for Timer 2, channel 0.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_VD[0] — LCD data.
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LPC178x/7x
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32-bit ARM Cortex-M3 microcontroller
P0[6]
P0[7]
166 C12
164 D13
162 C13
LPC178X_7X
Product data sheet
115
D11
B12
113
112
[3]
[3]
[4]
I;
PU
I;
PU
Type[2]
B11
Reset state[1]
Pin LQFP144
P0[5]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P0[5] — General purpose digital input/output pin.
I/O
I2S_RX_WS — I2S Receive word select. It is driven by the
master and received by the slave. Corresponds to the signal WS
in the I2S-bus specification.
O
CAN_TD2 — CAN2 transmitter output.
I
T2_CAP1 — Capture input for Timer 2, channel 1.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_VD[1] — LCD data.
I/O
P0[6] — General purpose digital input/output pin.
I/O
I2S_RX_SDA — I2S Receive data. It is driven by the transmitter
and read by the receiver. Corresponds to the signal SD in the
I2S-bus specification.
I/O
SSP1_SSEL — Slave Select for SSP1.
O
T2_MAT0 — Match output for Timer 2, channel 0.
O
U1_RTS — Request to Send output for UART1. Can also be
configured to be an RS-485/EIA-485 output enable signal for
UART1.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_VD[8] — LCD data.
I; IA I/O
P0[7] — General purpose digital input/output pin.
I/O
I2S_TX_SCK — I2S transmit clock. It is driven by the master
and received by the slave. Corresponds to the signal SCK in the
I2S-bus specification.
I/O
SSP1_SCK — Serial Clock for SSP1.
O
T2_MAT1 — Match output for Timer 2, channel 1.
I
RTC_EV0 — Event input 0 to Event Monitor/Recorder.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_VD[9] — LCD data.
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LPC178x/7x
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32-bit ARM Cortex-M3 microcontroller
P0[9]
P0[10]
P0[11]
P0[12]
160 A15
158 C14
98
T15
100 R14
41
LPC178X_7X
Product data sheet
R1
111
A13
L10
P12
J4
109
69
70
29
[4]
[4]
[3]
[3]
[5]
Type[2]
C12
Reset state[1]
Pin LQFP144
P0[8]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I; IA I/O
I/O
I2S_TX_WS — I2S Transmit word select. It is driven by the
master and received by the slave. Corresponds to the signal WS
in the I2S-bus specification.
I/O
SSP1_MISO — Master In Slave Out for SSP1.
O
T2_MAT2 — Match output for Timer 2, channel 2.
I
RTC_EV1 — Event input 1 to Event Monitor/Recorder.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_VD[16] — LCD data.
I; IA I/O
I;
PU
I;
PU
I;
PU
P0[8] — General purpose digital input/output pin.
P0[9] — General purpose digital input/output pin.
I/O
I2S_TX_SDA — I2S transmit data. It is driven by the transmitter
and read by the receiver. Corresponds to the signal SD in the
I2S-bus specification.
I/O
SSP1_MOSI — Master Out Slave In for SSP1.
O
T2_MAT3 — Match output for Timer 2, channel 3.
I
RTC_EV2 — Event input 2 to Event Monitor/Recorder.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_VD[17] — LCD data.
I/O
P0[10] — General purpose digital input/output pin.
O
U2_TXD — Transmitter output for UART2.
I/O
I2C2_SDA — I2C2 data input/output (this pin does not use a
specialized I2C pad).
O
T3_MAT0 — Match output for Timer 3, channel 0.
I/O
P0[11] — General purpose digital input/output pin.
I
U2_RXD — Receiver input for UART2.
I/O
I2C2_SCL — I2C2 clock input/output (this pin does not use a
specialized I2C pad).
O
T3_MAT1 — Match output for Timer 3, channel 1.
I/O
P0[12] — General purpose digital input/output pin.
O
USB_PPWR2 — Port Power enable signal for USB port 2.
I/O
SSP1_MISO — Master In Slave Out for SSP1.
I
ADC0_IN[6] — A/D converter 0, input 6. When configured as an
ADC input, the digital function of the pin must be disabled.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
12 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
P0[14]
P0[15]
P0[16]
P0[17]
P0[18]
P0[19]
Pin LQFP144
R2
J5
32
69
T7
128 J16
130 J14
126 K17
124 K15
122 L17
LPC178X_7X
Product data sheet
M5
H13
H14
J12
J13
J10
48
89
90
87
86
85
[5]
[3]
[3]
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
Ball TFBGA180
45
Reset state[1]
Ball TFBGA208
P0[13]
Description
Pin LQFP208
Symbol
I/O
P0[13] — General purpose digital input/output pin.
O
USB_UP_LED2 — USB port 2 GoodLink LED indicator. It is
LOW when the device is configured (non-control endpoints
enabled), or when the host is enabled and has detected a
device on the bus. It is HIGH when the device is not configured,
or when host is enabled and has not detected a device on the
bus, or during global suspend. It transitions between LOW and
HIGH (flashes) when the host is enabled and detects activity on
the bus.
I/O
SSP1_MOSI — Master Out Slave In for SSP1.
I
ADC0_IN[7] — A/D converter 0, input 7. When configured as an
ADC input, the digital function of the pin must be disabled.
I/O
P0[14] — General purpose digital input/output pin.
O
USB_HSTEN2 — Host Enabled status for USB port 2.
I/O
SSP1_SSEL — Slave Select for SSP1.
O
USB_CONNECT2 — SoftConnect control for USB port 2.
Signal used to switch an external 1.5 k resistor under software
control. Used with the SoftConnect USB feature.
I/O
P0[15] — General purpose digital input/output pin.
O
U1_TXD — Transmitter output for UART1.
I/O
SSP0_SCK — Serial clock for SSP0.
I/O
P0[16] — General purpose digital input/output pin.
I
U1_RXD — Receiver input for UART1.
I/O
SSP0_SSEL — Slave Select for SSP0.
I/O
P0[17] — General purpose digital input/output pin.
I
U1_CTS — Clear to Send input for UART1.
I/O
SSP0_MISO — Master In Slave Out for SSP0.
I;
PU
I/O
P0[18] — General purpose digital input/output pin.
I
U1_DCD — Data Carrier Detect input for UART1.
I/O
SSP0_MOSI — Master Out Slave In for SSP0.
I;
PU
I/O
P0[19] — General purpose digital input/output pin.
I
U1_DSR — Data Set Ready input for UART1.
O
SD_CLK — Clock output line for SD card interface.
I/O
I2C1_SDA — I2C1 data input/output (this pin does not use a
specialized I2C pad).
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
13 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P0[20]
P0[21]
P0[22]
P0[23]
P0[24]
120 M17 K14
118
116
18
16
LPC178X_7X
Product data sheet
M16 K11
N17
H1
G2
L14
F5
E1
83
82
80
13
11
[3]
[3]
[6]
[5]
[5]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
Reset state[1]
Description
Pin LQFP144
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P0[20] — General purpose digital input/output pin.
O
U1_DTR — Data Terminal Ready output for UART1. Can also
be configured to be an RS-485/EIA-485 output enable signal for
UART1.
I/O
SD_CMD — Command line for SD card interface.
I/O
I2C1_SCL — I2C1 clock input/output (this pin does not use a
specialized I2C pad).
I/O
P0[21] — General purpose digital input/output pin.
I
U1_RI — Ring Indicator input for UART1.
O
SD_PWR — Power Supply Enable for external SD card power
supply.
O
U4_OE — RS-485/EIA-485 output enable signal for UART4.
I
CAN_RD1 — CAN1 receiver input.
I/O
U4_SCLK — USART 4 clock input or output in synchronous
mode.
I/O
P0[22] — General purpose digital input/output pin.
O
U1_RTS — Request to Send output for UART1. Can also be
configured to be an RS-485/EIA-485 output enable signal for
UART1.
I/O
SD_DAT[0] — Data line 0 for SD card interface.
O
U4_TXD — Transmitter output for USART4 (input/output in
smart card mode).
O
CAN_TD1 — CAN1 transmitter output.
I/O
P0[23] — General purpose digital input/output pin.
I
ADC0_IN[0] — A/D converter 0, input 0. When configured as an
ADC input, the digital function of the pin must be disabled.
I/O
I2S_RX_SCK — Receive Clock. It is driven by the master and
received by the slave. Corresponds to the signal SCK in the
I2S-bus specification.
I
T3_CAP0 — Capture input for Timer 3, channel 0.
I/O
P0[24] — General purpose digital input/output pin.
I
ADC0_IN[1] — A/D converter 0, input 1. When configured as an
ADC input, the digital function of the pin must be disabled.
I/O
I2S_RX_WS — Receive Word Select. It is driven by the master
and received by the slave. Corresponds to the signal WS in the
I2S-bus specification.
I
T3_CAP1 — Capture input for Timer 3, channel 1.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
14 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
P0[26]
P0[27]
P0[28]
P0[29]
P0[30]
P0[31]
Pin LQFP144
F1
E4
10
12
50
48
61
62
51
E1
T1
R3
U4
R6
T2
D1
L3
M1
K5
N4
N1
8
35
34
42
43
36
[5]
[7]
[8]
[8]
[9]
[9]
[9]
I;
PU
I;
PU
I
I
I
I
I
P1[0] to
P1[31]
P1[0]
196 A3
LPC178X_7X
Product data sheet
B5
136
[3]
I;
PU
Type[2]
Ball TFBGA180
14
Reset state[1]
Ball TFBGA208
P0[25]
Description
Pin LQFP208
Symbol
I/O
P0[25] — General purpose digital input/output pin.
I
ADC0_IN[2] — A/D converter 0, input 2. When configured as an
ADC input, the digital function of the pin must be disabled.
I/O
I2S_RX_SDA — Receive data. It is driven by the transmitter
and read by the receiver. Corresponds to the signal SD in the
I2S-bus specification.
O
U3_TXD — Transmitter output for UART3.
I/O
P0[26] — General purpose digital input/output pin.
I
ADC0_IN[3] — A/D converter 0, input 3. When configured as an
ADC input, the digital function of the pin must be disabled.
O
DAC_OUT — D/A converter output. When configured as the
DAC output, the digital function of the pin must be disabled.
I
U3_RXD — Receiver input for UART3.
I/O
P0[27] — General purpose digital input/output pin.
I/O
I2C0_SDA — I2C0 data input/output (this pin uses a specialized
I2C pad).
I/O
USB_SDA1 — I2C serial data for communication with an
external USB transceiver.
I/O
P0[28] — General purpose digital input/output pin.
I/O
I2C0_SCL — I2C0 clock input/output (this pin uses a
specialized I2C pad).
I/O
USB_SCL1 — I2C serial clock for communication with an
external USB transceiver.
I/O
P0[29] — General purpose digital input/output pin.
I/O
USB_D+1 — USB port 1 bidirectional D+ line.
I
EINT0 — External interrupt 0 input.
I/O
P0[30] — General purpose digital input/output pin.
I/O
USB_D1 — USB port 1 bidirectional D line.
I
EINT1 — External interrupt 1 input.
I/O
P0[31] — General purpose digital input/output pin.
I/O
USB_D+2 — USB port 2 bidirectional D+ line.
I/O
Port 1: Port 1 is a 32 bit I/O port with individual direction
controls for each bit. The operation of port 1 pins depends upon
the pin function selected via the pin connect block
I/O
P1[0] — General purpose digital input/output pin.
O
ENET_TXD0 — Ethernet transmit data 0 (RMII/MII interface).
-
R — Function reserved.
I
T3_CAP1 — Capture input for Timer 3, channel 1.
I/O
SSP2_SCK — Serial clock for SSP2.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
15 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
135
P1[2]
P1[3]
P1[4]
P1[5]
P1[6]
P1[7]
185 D9
177 A10
192 A5
156 A17
171 B11
153 D14
LPC178X_7X
Product data sheet
B7
A9
C6
B13
B10
C13
-
-
133
-
-
-
[3]
[3]
[3]
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
Pin LQFP144
A5
Reset state[1]
Ball TFBGA180
194 B5
Pin LQFP208
P1[1]
Description
Ball TFBGA208
Symbol
I/O
P1[1] — General purpose digital input/output pin.
O
ENET_TXD1 — Ethernet transmit data 1 (RMII/MII interface).
-
R — Function reserved.
O
T3_MAT3 — Match output for Timer 3, channel 3.
I/O
SSP2_MOSI — Master Out Slave In for SSP2.
I/O
P1[2] — General purpose digital input/output pin.
O
ENET_TXD2 — Ethernet transmit data 2 (MII interface).
O
SD_CLK — Clock output line for SD card interface.
O
PWM0[1] — Pulse Width Modulator 0, output 1.
I/O
P1[3] — General purpose digital input/output pin.
O
ENET_TXD3 — Ethernet transmit data 3 (MII interface).
I/O
SD_CMD — Command line for SD card interface.
O
PWM0[2] — Pulse Width Modulator 0, output 2.
I/O
P1[4] — General purpose digital input/output pin.
O
ENET_TX_EN — Ethernet transmit data enable (RMII/MII
interface).
-
R — Function reserved.
O
T3_MAT2 — Match output for Timer 3, channel 2.
I/O
SSP2_MISO — Master In Slave Out for SSP2.
I/O
P1[5] — General purpose digital input/output pin.
O
ENET_TX_ER — Ethernet Transmit Error (MII interface).
O
SD_PWR — Power Supply Enable for external SD card power
supply.
O
PWM0[3] — Pulse Width Modulator 0, output 3.
I/O
P1[6] — General purpose digital input/output pin.
I
ENET_TX_CLK — Ethernet Transmit Clock (MII interface).
I/O
SD_DAT[0] — Data line 0 for SD card interface.
O
PWM0[4] — Pulse Width Modulator 0, output 4.
I/O
P1[7] — General purpose digital input/output pin.
I
ENET_COL — Ethernet Collision detect (MII interface).
I/O
SD_DAT[1] — Data line 1 for SD card interface.
O
PWM0[5] — Pulse Width Modulator 0, output 5.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
16 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
132
P1[9]
P1[10]
P1[11]
P1[12]
P1[13]
P1[14]
P1[15]
188 A6
186 C8
163 A14
157 A16
147 D16
184 A7
182 A8
LPC178X_7X
Product data sheet
D7
A7
A12
A14
D14
D8
A8
131
129
-
-
[3]
[3]
[3]
[3]
[3]
-
[3]
128
[3]
126
[3]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
Pin LQFP144
B6
Reset state[1]
Ball TFBGA180
190 C7
Pin LQFP208
P1[8]
Description
Ball TFBGA208
Symbol
I/O
P1[8] — General purpose digital input/output pin.
I
ENET_CRS (ENET_CRS_DV) — Ethernet Carrier Sense (MII
interface) or Ethernet Carrier Sense/Data Valid (RMII interface).
-
R — Function reserved.
O
T3_MAT1 — Match output for Timer 3, channel 1.
I/O
SSP2_SSEL — Slave Select for SSP2.
I/O
P1[9] — General purpose digital input/output pin.
I
ENET_RXD0 — Ethernet receive data 0 (RMII/MII interface).
-
R — Function reserved.
O
T3_MAT0 — Match output for Timer 3, channel 0.
I/O
P1[10] — General purpose digital input/output pin.
I
ENET_RXD1 — Ethernet receive data 1 (RMII/MII interface).
-
R — Function reserved.
I
T3_CAP0 — Capture input for Timer 3, channel 0.
I/O
P1[11] — General purpose digital input/output pin.
I
ENET_RXD2 — Ethernet Receive Data 2 (MII interface).
I/O
SD_DAT[2] — Data line 2 for SD card interface.
O
PWM0[6] — Pulse Width Modulator 0, output 6.
I/O
P1[12] — General purpose digital input/output pin.
I
ENET_RXD3 — Ethernet Receive Data (MII interface).
I/O
SD_DAT[3] — Data line 3 for SD card interface.
I
PWM0_CAP0 — Capture input for PWM0, channel 0.
I;
PU
I/O
P1[13] — General purpose digital input/output pin.
I
ENET_RX_DV — Ethernet Receive Data Valid (MII interface).
I;
PU
I/O
P1[14] — General purpose digital input/output pin.
I;
PU
I
ENET_RX_ER — Ethernet receive error (RMII/MII interface).
-
R — Function reserved.
I
T2_CAP0 — Capture input for Timer 2, channel 0.
I/O
P1[15] — General purpose digital input/output pin.
I
ENET_RX_CLK (ENET_REF_CLK) — Ethernet Receive Clock
(MII interface) or Ethernet Reference Clock (RMII interface).
-
R — Function reserved.
I/O
I2C2_SDA — I2C2 data input/output (this pin does not use a
specialized I2C pad).
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
17 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P1[17]
P1[18]
P1[19]
P1[20]
180 D10
178 A9
66
68
70
LPC178X_7X
Product data sheet
P7
U6
U7
125
C9
L5
P5
K6
123
46
47
49
[3]
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
B8
Reset state[1]
Pin LQFP144
P1[16]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P1[16] — General purpose digital input/output pin.
O
ENET_MDC — Ethernet MIIM clock.
O
I2S_TX_MCLK — I2S transmit master clock.
I/O
P1[17] — General purpose digital input/output pin.
I/O
ENET_MDIO — Ethernet MIIM data input and output.
O
I2S_RX_MCLK — I2S receive master clock.
I/O
P1[18] — General purpose digital input/output pin.
O
USB_UP_LED1 — It is LOW when the device is configured
(non-control endpoints enabled), or when the host is enabled
and has detected a device on the bus. It is HIGH when the
device is not configured, or when host is enabled and has not
detected a device on the bus, or during global suspend. It
transitions between LOW and HIGH (flashes) when the host is
enabled and detects activity on the bus.
O
PWM1[1] — Pulse Width Modulator 1, channel 1 output.
I
T1_CAP0 — Capture input for Timer 1, channel 0.
-
R — Function reserved.
I/O
SSP1_MISO — Master In Slave Out for SSP1.
I/O
P1[19] — General purpose digital input/output pin.
O
USB_TX_E1 — Transmit Enable signal for USB port 1 (OTG
transceiver).
O
USB_PPWR1 — Port Power enable signal for USB port 1.
I
T1_CAP1 — Capture input for Timer 1, channel 1.
O
MC_0A — Motor control PWM channel 0, output A.
I/O
SSP1_SCK — Serial clock for SSP1.
O
U2_OE — RS-485/EIA-485 output enable signal for UART2.
I/O
P1[20] — General purpose digital input/output pin.
O
USB_TX_DP1 — D+ transmit data for USB port 1 (OTG
transceiver).
O
PWM1[2] — Pulse Width Modulator 1, channel 2 output.
I
QEI_PHA — Quadrature Encoder Interface PHA input.
I
MC_FB0 — Motor control PWM channel 0 feedback input.
I/O
SSP0_SCK — Serial clock for SSP0.
O
LCD_VD[6] — LCD data.
O
LCD_VD[10] — LCD data.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
18 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
P1[22]
P1[23]
P1[24]
Pin LQFP144
R8
N6
50
74
76
78
LPC178X_7X
Product data sheet
U8
P9
T9
M6
N7
P7
51
53
54
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
Ball TFBGA180
72
Reset state[1]
Ball TFBGA208
P1[21]
Description
Pin LQFP208
Symbol
I/O
P1[21] — General purpose digital input/output pin.
O
USB_TX_DM1 — D transmit data for USB port 1 (OTG
transceiver).
O
PWM1[3] — Pulse Width Modulator 1, channel 3 output.
I/O
SSP0_SSEL — Slave Select for SSP0.
I
MC_ABORT — Motor control PWM, active low fast abort.
-
R — Function reserved.
O
LCD_VD[7] — LCD data.
O
LCD_VD[11] — LCD data.
I/O
P1[22] — General purpose digital input/output pin.
I
USB_RCV1 — Differential receive data for USB port 1 (OTG
transceiver).
I
USB_PWRD1 — Power Status for USB port 1 (host power
switch).
O
T1_MAT0 — Match output for Timer 1, channel 0.
O
MC_0B — Motor control PWM channel 0, output B.
I/O
SSP1_MOSI — Master Out Slave In for SSP1.
O
LCD_VD[8] — LCD data.
O
LCD_VD[12] — LCD data.
I/O
P1[23] — General purpose digital input/output pin.
I
USB_RX_DP1 — D+ receive data for USB port 1 (OTG
transceiver).
O
PWM1[4] — Pulse Width Modulator 1, channel 4 output.
I
QEI_PHB — Quadrature Encoder Interface PHB input.
I
MC_FB1 — Motor control PWM channel 1 feedback input.
I/O
SSP0_MISO — Master In Slave Out for SSP0.
O
LCD_VD[9] — LCD data.
O
LCD_VD[13] — LCD data.
I/O
P1[24] — General purpose digital input/output pin.
I
USB_RX_DM1 — D receive data for USB port 1 (OTG
transceiver).
O
PWM1[5] — Pulse Width Modulator 1, channel 5 output.
I
QEI_IDX — Quadrature Encoder Interface INDEX input.
I
MC_FB2 — Motor control PWM channel 2 feedback input.
I/O
SSP0_MOSI — Master Out Slave in for SSP0.
O
LCD_VD[10] — LCD data.
O
LCD_VD[14] — LCD data.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
19 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
P1[26]
P1[27]
P1[28]
Pin LQFP144
T10
L7
56
82
88
90
LPC178X_7X
Product data sheet
R10
T12
T13
P8
M9
P10
57
61
63
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
Ball TFBGA180
80
Reset state[1]
Ball TFBGA208
P1[25]
Description
Pin LQFP208
Symbol
I/O
P1[25] — General purpose digital input/output pin.
O
USB_LS1 — Low Speed status for USB port 1 (OTG
transceiver).
O
USB_HSTEN1 — Host Enabled status for USB port 1.
O
T1_MAT1 — Match output for Timer 1, channel 1.
O
MC_1A — Motor control PWM channel 1, output A.
O
CLKOUT — Selectable clock output.
O
LCD_VD[11] — LCD data.
O
LCD_VD[15] — LCD data.
I/O
P1[26] — General purpose digital input/output pin.
O
USB_SSPND1 — USB port 1 Bus Suspend status (OTG
transceiver).
O
PWM1[6] — Pulse Width Modulator 1, channel 6 output.
I
T0_CAP0 — Capture input for Timer 0, channel 0.
O
MC_1B — Motor control PWM channel 1, output B.
I/O
SSP1_SSEL — Slave Select for SSP1.
O
LCD_VD[12] — LCD data.
O
LCD_VD[20] — LCD data.
I/O
P1[27] — General purpose digital input/output pin.
I
USB_INT1 — USB port 1 OTG transceiver interrupt (OTG
transceiver).
I
USB_OVRCR1 — USB port 1 Over-Current status.
I
T0_CAP1 — Capture input for Timer 0, channel 1.
O
CLKOUT — Selectable clock output.
-
R — Function reserved.
O
LCD_VD[13] — LCD data.
O
LCD_VD[21] — LCD data.
I/O
P1[28] — General purpose digital input/output pin.
I/O
USB_SCL1 — USB port 1 I2C serial clock (OTG transceiver).
I
PWM1_CAP0 — Capture input for PWM1, channel 0.
O
T0_MAT0 — Match output for Timer 0, channel 0.
O
MC_2A — Motor control PWM channel 2, output A.
I/O
SSP0_SSEL — Slave Select for SSP0.
O
LCD_VD[14] — LCD data.
O
LCD_VD[22] — LCD data.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
20 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
P1[30]
Pin LQFP144
U14
N10
64
42
P2
K3
30
[3]
[5]
I;
PU
I;
PU
Type[2]
Ball TFBGA180
92
Reset state[1]
Ball TFBGA208
P1[29]
Description
Pin LQFP208
Symbol
I/O
P1[29] — General purpose digital input/output pin.
I/O
USB_SDA1 — USB port 1 I2C serial data (OTG transceiver).
I
PWM1_CAP1 — Capture input for PWM1, channel 1.
O
T0_MAT1 — Match output for Timer 0, channel 1.
O
MC_2B — Motor control PWM channel 2, output B.
O
U4_TXD — Transmitter output for USART4 (input/output in
smart card mode).
O
LCD_VD[15] — LCD data.
O
LCD_VD[23] — LCD data.
I/O
P1[30] — General purpose digital input/output pin.
I
USB_PWRD2 — Power Status for USB port 2.
I
USB_VBUS — Monitors the presence of USB bus power.
I
ADC0_IN[4] — A/D converter 0, input 4. When configured as an
ADC input, the digital function of the pin must be disabled.
I/O
I2C0_SDA — I2C0 data input/output (this pin does not use a
specialized I2C pad).
O
U3_OE — RS-485/EIA-485 output enable signal for UART3.
I/O
P1[31] — General purpose digital input/output pin.
I
USB_OVRCR2 — Over-Current status for USB port 2.
This signal must be HIGH for USB reset to occur.
P1[31]
40
P1
K2
28
[5]
I;
PU
P2[0] to
P2[31]
P2[0]
154 B17
LPC178X_7X
Product data sheet
D12
107
[3]
I;
PU
I/O
SSP1_SCK — Serial Clock for SSP1.
I
ADC0_IN[5] — A/D converter 0, input 5. When configured as an
ADC input, the digital function of the pin must be disabled.
I/O
I2C0_SCL — I2C0 clock input/output (this pin does not use a
specialized I2C pad).
I/O
Port 2: Port 2 is a 32 bit I/O port with individual direction
controls for each bit. The operation of port 1 pins depends upon
the pin function selected via the pin connect block.
I/O
P2[0] — General purpose digital input/output pin.
O
PWM1[1] — Pulse Width Modulator 1, channel 1 output.
O
U1_TXD — Transmitter output for UART1.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_PWR — LCD panel power enable.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
21 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P2[2]
P2[3]
P2[4]
152 E14
150 D15
144 E16
142 D17
LPC178X_7X
Product data sheet
106
E11
E13
E14
105
100
99
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
C14
Reset state[1]
Pin LQFP144
P2[1]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P2[1] — General purpose digital input/output pin.
O
PWM1[2] — Pulse Width Modulator 1, channel 2 output.
I
U1_RXD — Receiver input for UART1.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_LE — Line end signal.
I/O
P2[2] — General purpose digital input/output pin.
O
PWM1[3] — Pulse Width Modulator 1, channel 3 output.
I
U1_CTS — Clear to Send input for UART1.
O
T2_MAT3 — Match output for Timer 2, channel 3.
-
R — Function reserved.
O
TRACEDATA[3] — Trace data, bit 3.
-
R — Function reserved.
O
LCD_DCLK — LCD panel clock.
I/O
P2[3] — General purpose digital input/output pin.
O
PWM1[4] — Pulse Width Modulator 1, channel 4 output.
I
U1_DCD — Data Carrier Detect input for UART1.
O
T2_MAT2 — Match output for Timer 2, channel 2.
-
R — Function reserved.
O
TRACEDATA[2] — Trace data, bit 2.
-
R — Function reserved.
O
LCD_FP — Frame pulse (STN). Vertical synchronization pulse
(TFT).
I/O
P2[4] — General purpose digital input/output pin.
O
PWM1[5] — Pulse Width Modulator 1, channel 5 output.
I
U1_DSR — Data Set Ready input for UART1.
O
T2_MAT1 — Match output for Timer 2, channel 1.
-
R — Function reserved.
O
TRACEDATA[1] — Trace data, bit 1.
-
R — Function reserved.
O
LCD_ENAB_M — STN AC bias drive or TFT data enable
output.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
22 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P2[6]
P2[7]
P2[8]
140 F16
138 E17
136 G16
134 H15
LPC178X_7X
Product data sheet
97
F13
G11
96
95
G14 93
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
F12
Reset state[1]
Pin LQFP144
P2[5]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P2[5] — General purpose digital input/output pin.
O
PWM1[6] — Pulse Width Modulator 1, channel 6 output.
O
U1_DTR — Data Terminal Ready output for UART1. Can also
be configured to be an RS-485/EIA-485 output enable signal for
UART1.
O
T2_MAT0 — Match output for Timer 2, channel 0.
-
R — Function reserved.
O
TRACEDATA[0] — Trace data, bit 0.
-
R — Function reserved.
O
LCD_LP — Line synchronization pulse (STN). Horizontal
synchronization pulse (TFT).
I/O
P2[6] — General purpose digital input/output pin.
I
PWM1_CAP0 — Capture input for PWM1, channel 0.
I
U1_RI — Ring Indicator input for UART1.
I
T2_CAP0 — Capture input for Timer 2, channel 0.
O
U2_OE — RS-485/EIA-485 output enable signal for UART2.
O
TRACECLK — Trace clock.
O
LCD_VD[0] — LCD data.
O
LCD_VD[4] — LCD data.
I/O
P2[7] — General purpose digital input/output pin.
I
CAN_RD2 — CAN2 receiver input.
O
U1_RTS — Request to Send output for UART1. Can also be
configured to be an RS-485/EIA-485 output enable signal for
UART1.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_VD[1] — LCD data.
O
LCD_VD[5] — LCD data.
I/O
P2[8] — General purpose digital input/output pin.
O
CAN_TD2 — CAN2 transmitter output.
O
U2_TXD — Transmitter output for UART2.
I
U1_CTS — Clear to Send input for UART1.
O
ENET_MDC — Ethernet MIIM clock.
-
R — Function reserved.
O
LCD_VD[2] — LCD data.
O
LCD_VD[6] — LCD data.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
23 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P2[10]
132 H16
110
N15
92
M13 76
[3]
[10]
I;
PU
I;
PU
Type[2]
H11
Reset state[1]
Pin LQFP144
P2[9]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P2[9] — General purpose digital input/output pin.
O
USB_CONNECT1 — USB1 SoftConnect control. Signal used to
switch an external 1.5 k resistor under the software control.
Used with the SoftConnect USB feature.
I
U2_RXD — Receiver input for UART2.
I
U4_RXD — Receiver input for USART4.
I/O
ENET_MDIO — Ethernet MIIM data input and output.
-
R — Function reserved.
I
LCD_VD[3] — LCD data.
I
LCD_VD[7] — LCD data.
I/O
P2[10] — General purpose digital input/output pin. This pin
includes a 10 ns input .
A LOW on this pin while RESET is LOW forces the on-chip boot
loader to take over control of the part after a reset and go into
ISP mode.
P2[11]
P2[12]
108 T17
106 N14
LPC178X_7X
Product data sheet
M12 75
N14
73
[10]
[10]
I;
PU
I;
PU
I
EINT0 — External interrupt 0 input.
I
NMI — Non-maskable interrupt input.
I/O
P2[11] — General purpose digital input/output pin. This pin
includes a 10 ns input glitch filter.
I
EINT1 — External interrupt 1 input.
I/O
SD_DAT[1] — Data line 1 for SD card interface.
I/O
I2S_TX_SCK — Transmit Clock. It is driven by the master and
received by the slave. Corresponds to the signal SCK in the
I2S-bus specification.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
O
LCD_CLKIN — LCD clock.
I/O
P2[12] — General purpose digital input/output pin. This pin
includes a 10 ns input glitch filter.
I
EINT2 — External interrupt 2 input.
I/O
SD_DAT[2] — Data line 2 for SD card interface.
I/O
I2S_TX_WS — Transmit Word Select. It is driven by the master
and received by the slave. Corresponds to the signal WS in the
I2S-bus specification.
O
LCD_VD[4] — LCD data.
O
LCD_VD[3] — LCD data.
O
LCD_VD[8] — LCD data.
O
LCD_VD[18] — LCD data.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
24 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P2[13]
P2[14]
P2[15]
P2[16]
P2[17]
P2[18]
P2[19]
P2[20]
P2[21]
P2[22]
102 T16
91
99
87
95
59
67
73
81
85
LPC178X_7X
Product data sheet
R12
P13
R11
R13
U3
R7
T8
U11
U12
M11 71
-
-
P9
P11
P3
N5
P6
N8
-
-
-
-
[10]
[3]
[3]
[3]
-
[3]
-
[6]
-
[6]
-
[3]
-
[3]
-
[3]
I;
PU
I;
PU
I;
PU
Type[2]
Reset state[1]
Description
Pin LQFP144
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P2[13] — General purpose digital input/output pin. This pin
includes a 10 ns input glitch filter.
I
EINT3 — External interrupt 3 input.
I/O
SD_DAT[3] — Data line 3 for SD card interface.
I/O
I2S_TX_SDA — Transmit data. It is driven by the transmitter
and read by the receiver. Corresponds to the signal SD in the
I2S-bus specification.
-
R — Function reserved.
O
LCD_VD[5] — LCD data.
O
LCD_VD[9] — LCD data.
O
LCD_VD[19] — LCD data.
I/O
P2[14] — General purpose digital input/output pin.
O
EMC_CS2 — LOW active Chip Select 2 signal.
I/O
I2C1_SDA — I2C1 data input/output (this pin does not use a
specialized I2C pad).
I
T2_CAP0 — Capture input for Timer 2, channel 0.
I/O
P2[15] — General purpose digital input/output pin.
O
EMC_CS3 — LOW active Chip Select 3 signal.
I/O
I2C1_SCL — I2C1 clock input/output (this pin does not use a
specialized I2C pad).
I
T2_CAP1 — Capture input for Timer 2, channel 1.
I;
PU
I/O
P2[16] — General purpose digital input/output pin.
O
EMC_CAS — LOW active SDRAM Column Address Strobe.
I;
PU
I/O
P2[17] — General purpose digital input/output pin.
O
EMC_RAS — LOW active SDRAM Row Address Strobe.
I;
PU
I/O
P2[18] — General purpose digital input/output pin.
O
EMC_CLK[0] — SDRAM clock 0.
I;
PU
I/O
P2[19] — General purpose digital input/output pin.
O
EMC_CLK[1] — SDRAM clock 1.
I;
PU
I/O
P2[20] — General purpose digital input/output pin.
O
EMC_DYCS0 — SDRAM chip select 0.
I;
PU
I/O
P2[21] — General purpose digital input/output pin.
O
EMC_DYCS1 — SDRAM chip select 1.
I;
PU
I/O
P2[22] — General purpose digital input/output pin.
O
EMC_DYCS2 — SDRAM chip select 2.
I/O
SSP0_SCK — Serial clock for SSP0.
I
T3_CAP0 — Capture input for Timer 3, channel 0.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
25 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
Pin LQFP144
U5
-
-
[3]
P2[24]
53
P5
P1
-
[3]
P2[25]
54
R4
P2
-
[3]
-
[3]
P2[26]
P2[27]
P2[28]
P2[29]
P2[30]
P2[31]
57
47
49
43
31
39
P3[0] to
P3[31]
LPC178X_7X
Product data sheet
T4
P3
P4
N3
L4
N2
-
-
M2
L1
-
-
-
-
-
-
-
[3]
[3]
[3]
[3]
[3]
I;
PU
Type[2]
Ball TFBGA180
64
Reset state[1]
Ball TFBGA208
P2[23]
Description
Pin LQFP208
Symbol
I/O
P2[23] — General purpose digital input/output pin.
O
EMC_DYCS3 — SDRAM chip select 3.
I/O
SSP0_SSEL — Slave Select for SSP0.
I
T3_CAP1 — Capture input for Timer 3, channel 1.
I;
PU
I/O
P2[24] — General purpose digital input/output pin.
O
EMC_CKE0 — SDRAM clock enable 0.
I;
PU
I/O
P2[25] — General purpose digital input/output pin.
O
EMC_CKE1 — SDRAM clock enable 1.
I;
PU
I/O
P2[26] — General purpose digital input/output pin.
I;
PU
O
EMC_CKE2 — SDRAM clock enable 2.
I/O
SSP0_MISO — Master In Slave Out for SSP0.
O
T3_MAT0 — Match output for Timer 3, channel 0.
I/O
P2[27] — General purpose digital input/output pin.
O
EMC_CKE3 — SDRAM clock enable 3.
I/O
SSP0_MOSI — Master Out Slave In for SSP0.
O
T3_MAT1 — Match output for Timer 3, channel 1.
I;
PU
I/O
P2[28] — General purpose digital input/output pin.
O
EMC_DQM0 — Data mask 0 used with SDRAM and static
devices.
I;
PU
I/O
P2[29] — General purpose digital input/output pin.
O
EMC_DQM1 — Data mask 1 used with SDRAM and static
devices.
I;
PU
I/O
P2[30] — General purpose digital input/output pin.
O
EMC_DQM2 — Data mask 2 used with SDRAM and static
devices.
I/O
I2C2_SDA — I2C2 data input/output (this pin does not use a
specialized I2C pad).
O
T3_MAT2 — Match output for Timer 3, channel 2.
I/O
P2[31] — General purpose digital input/output pin.
O
EMC_DQM3 — Data mask 3 used with SDRAM and static
devices.
I/O
I2C2_SCL — I2C2 clock input/output (this pin does not use a
specialized I2C pad).
I;
PU
O
T3_MAT3 — Match output for Timer 3, channel 3.
I/O
Port 3: Port 3 is a 32-bit I/O port with individual direction
controls for each bit. The operation of port 3 pins depends upon
the pin function selected via the pin connect block.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
26 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
D6
137
[3]
I;
PU
P3[1]
201 B3
E6
140
[3]
I;
PU
I;
PU
I;
PU
P3[2]
207 B1
A2
144
[3]
P3[3]
3
G5
2
[3]
I;
PU
I;
PU
E4
P3[4]
13
F2
D3
9
[3]
P3[5]
17
G1
E3
12
[3]
I;
PU
I;
PU
P3[6]
23
J1
F4
16
[3]
P3[7]
27
L1
G3
19
[3]
I;
PU
I;
PU
Type[2]
197 B4
Reset state[1]
Pin LQFP144
P3[0]
Pin LQFP208
Ball TFBGA180
Description
Ball TFBGA208
Symbol
I/O
P3[0] — General purpose digital input/output pin.
I/O
EMC_D[0] — External memory data line 0.
I/O
P3[1] — General purpose digital input/output pin.
I/O
EMC_D[1] — External memory data line 1.
I/O
P3[2] — General purpose digital input/output pin.
I/O
EMC_D[2] — External memory data line 2.
I/O
P3[3] — General purpose digital input/output pin.
I/O
EMC_D[3] — External memory data line 3.
I/O
P3[4] — General purpose digital input/output pin.
I/O
EMC_D[4] — External memory data line 4.
I/O
P3[5] — General purpose digital input/output pin.
I/O
EMC_D[5] — External memory data line 5.
I/O
P3[6] — General purpose digital input/output pin.
I/O
EMC_D[6] — External memory data line 6.
I/O
P3[7] — General purpose digital input/output pin.
I/O
EMC_D[7] — External memory data line 7.
I/O
P3[8] — General purpose digital input/output pin.
I/O
EMC_D[8] — External memory data line 8.
I/O
P3[9] — General purpose digital input/output pin.
I/O
EMC_D[9] — External memory data line 9.
P3[8]
191 D8
A6
-
[3]
P3[9]
199 C5
A4
-
[3]
I;
PU
I/O
P3[10] — General purpose digital input/output pin.
I/O
EMC_D[10] — External memory data line 10.
I;
PU
I/O
P3[11] — General purpose digital input/output pin.
I/O
EMC_D[11] — External memory data line 11.
P3[10]
205 B2
B3
-
[3]
P3[11]
208 D5
B2
-
[3]
I;
PU
I/O
P3[12] — General purpose digital input/output pin.
I/O
EMC_D[12] — External memory data line 12.
I;
PU
I/O
P3[13] — General purpose digital input/output pin.
I/O
EMC_D[13] — External memory data line 13.
P3[12]
1
D4
A1
-
[3]
P3[13]
7
C1
C1
-
[3]
I;
PU
I/O
P3[14] — General purpose digital input/output pin.
I/O
EMC_D[14] — External memory data line 14.
I;
PU
I/O
P3[15] — General purpose digital input/output pin.
I/O
EMC_D[15] — External memory data line 15.
I;
PU
I/O
P3[16] — General purpose digital input/output pin.
P3[14]
21
H2
F1
-
[3]
P3[15]
28
M1
G4
-
[3]
-
[3]
P3[16]
137 F17
LPC178X_7X
Product data sheet
-
I/O
EMC_D[16] — External memory data line 16.
O
PWM0[1] — Pulse Width Modulator 0, output 1.
O
U1_TXD — Transmitter output for UART1.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
27 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P3[18]
P3[19]
P3[20]
P3[21]
P3[22]
P3[23]
P3[24]
143 F15
151 C15
161 B14
167 A13
175 C10
195 C6
65
58
LPC178X_7X
Product data sheet
T6
R5
-
-
-
-
-
-
M4
N3
-
-
-
-
-
45
40
[3]
[3]
[3]
[3]
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
Type[2]
-
Reset state[1]
Pin LQFP144
P3[17]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I/O
P3[17] — General purpose digital input/output pin.
I/O
EMC_D[17] — External memory data line 17.
O
PWM0[2] — Pulse Width Modulator 0, output 2.
I
U1_RXD — Receiver input for UART1.
I/O
P3[18] — General purpose digital input/output pin.
I/O
EMC_D[18] — External memory data line 18.
O
PWM0[3] — Pulse Width Modulator 0, output 3.
I
U1_CTS — Clear to Send input for UART1.
I/O
P3[19] — General purpose digital input/output pin.
I/O
EMC_D[19] — External memory data line 19.
O
PWM0[4] — Pulse Width Modulator 0, output 4.
I
U1_DCD — Data Carrier Detect input for UART1.
I/O
P3[20] — General purpose digital input/output pin.
I/O
EMC_D[20] — External memory data line 20.
O
PWM0[5] — Pulse Width Modulator 0, output 5.
I
U1_DSR — Data Set Ready input for UART1.
I/O
P3[21] — General purpose digital input/output pin.
I/O
EMC_D[21] — External memory data line 21.
O
PWM0[6] — Pulse Width Modulator 0, output 6.
O
U1_DTR — Data Terminal Ready output for UART1. Can also
be configured to be an RS-485/EIA-485 output enable signal for
UART1.
I/O
P3[22] — General purpose digital input/output pin.
I/O
EMC_D[22] — External memory data line 22.
I
PWM0_CAP0 — Capture input for PWM0, channel 0.
I
U1_RI — Ring Indicator input for UART1.
I/O
P3[23] — General purpose digital input/output pin.
I/O
EMC_D[23] — External memory data line 23.
I
PWM1_CAP0 — Capture input for PWM1, channel 0.
I
T0_CAP0 — Capture input for Timer 0, channel 0.
I/O
P3[24] — General purpose digital input/output pin.
I/O
EMC_D[24] — External memory data line 24.
O
PWM1[1] — Pulse Width Modulator 1, output 1.
I
T0_CAP1 — Capture input for Timer 0, channel 1.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
28 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
P3[26]
P3[27]
P3[28]
P3[29]
P3[30]
P3[31]
Pin LQFP144
U2
M3
39
55
T3
203 A1
5
11
19
25
D2
F3
H3
J3
K7
-
-
-
-
-
38
-
-
-
-
-
[3]
[3]
[3]
[3]
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
I;
PU
P4[0] to
P4[31]
P4[0]
75
LPC178X_7X
Product data sheet
U9
L6
52
[3]
I;
PU
Type[2]
Ball TFBGA180
56
Reset state[1]
Ball TFBGA208
P3[25]
Description
Pin LQFP208
Symbol
I/O
P3[25] — General purpose digital input/output pin.
I/O
EMC_D[25] — External memory data line 25.
O
PWM1[2] — Pulse Width Modulator 1, output 2.
O
T0_MAT0 — Match output for Timer 0, channel 0.
I/O
P3[26] — General purpose digital input/output pin.
I/O
EMC_D[26] — External memory data line 26.
O
PWM1[3] — Pulse Width Modulator 1, output 3.
O
T0_MAT1 — Match output for Timer 0, channel 1.
I
STCLK — System tick timer clock input. The maximum STCLK
frequency is 1/4 of the ARM processor clock frequency CCLK.
I/O
P3[27] — General purpose digital input/output pin.
I/O
EMC_D[27] — External memory data line 27.
O
PWM1[4] — Pulse Width Modulator 1, output 4.
I
T1_CAP0 — Capture input for Timer 1, channel 0.
I/O
P3[28] — General purpose digital input/output pin.
I/O
EMC_D[28] — External memory data line 28.
O
PWM1[5] — Pulse Width Modulator 1, output 5.
I
T1_CAP1 — Capture input for Timer 1, channel 1.
I/O
P3[29] — General purpose digital input/output pin.
I/O
EMC_D[29] — External memory data line 29.
O
PWM1[6] — Pulse Width Modulator 1, output 6.
O
T1_MAT0 — Match output for Timer 1, channel 0.
I/O
P3[30] — General purpose digital input/output pin.
I/O
EMC_D[30] — External memory data line 30.
O
U1_RTS — Request to Send output for UART1. Can also be
configured to be an RS-485/EIA-485 output enable signal for
UART1.
O
T1_MAT1 — Match output for Timer 1, channel 1.
I/O
P3[31] — General purpose digital input/output pin.
I/O
EMC_D[31] — External memory data line 31.
-
R — Function reserved.
O
T1_MAT2 — Match output for Timer 1, channel 2.
I/O
Port 4: Port 4 is a 32-bit I/O port with individual direction
controls for each bit. The operation of port 4 pins depends upon
the pin function selected via the pin connect block.
I/O
P4[0] — General purpose digital input/output pin.
I/O
EMC_A[0] — External memory address line 0.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
29 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
Pin LQFP144
79
U10
M7
55
[3]
I;
PU
P4[2]
83
T11
M8
58
[3]
I;
PU
K9
68
[3]
I;
PU
P13
72
[3]
I;
PU
H10
74
[3]
I;
PU
M14 K10
78
[3]
I;
PU
I;
PU
I;
PU
P4[3]
97
U16
P4[4]
103 R15
P4[5]
107 R16
P4[6]
113
Type[2]
Ball TFBGA180
P4[1]
Reset state[1]
Ball TFBGA208
Description
Pin LQFP208
Symbol
I/O
P4[1] — General purpose digital input/output pin.
I/O
EMC_A[1] — External memory address line 1.
I/O
P4[2] — General purpose digital input/output pin.
I/O
EMC_A[2] — External memory address line 2.
I/O
P4[3] — General purpose digital input/output pin.
I/O
EMC_A[3] — External memory address line 3.
I/O
P4[4] — General purpose digital input/output pin.
I/O
EMC_A[4] — External memory address line 4.
I/O
P4[5] — General purpose digital input/output pin.
I/O
EMC_A[5] — External memory address line 5.
I/O
P4[6] — General purpose digital input/output pin.
I/O
EMC_A[6] — External memory address line 6.
I/O
P4[7] — General purpose digital input/output pin.
I/O
EMC_A[7] — External memory address line 7.
I/O
P4[8] — General purpose digital input/output pin.
I/O
EMC_A[8] — External memory address line 8.
I/O
P4[9] — General purpose digital input/output pin.
P4[7]
121 L16
K12
84
[3]
P4[8]
127 J17
J11
88
[3]
I;
PU
I/O
EMC_A[9] — External memory address line 9.
I;
PU
I/O
P4[10] — General purpose digital input/output pin.
I/O
EMC_A[10] — External memory address line 10.
I/O
P4[11] — General purpose digital input/output pin.
P4[9]
131 H17
H12
91
[3]
P4[10]
135 G17
G12 94
[3]
I;
PU
I/O
EMC_A[11] — External memory address line 11.
I;
PU
I/O
P4[12] — General purpose digital input/output pin.
I/O
EMC_A[12] — External memory address line 12.
P4[11]
145 F14
F11
101
[3]
P4[12]
149 C16
F10
104
[3]
I;
PU
I/O
P4[13] — General purpose digital input/output pin.
I/O
EMC_A[13] — External memory address line 13.
I;
PU
I/O
P4[14] — General purpose digital input/output pin.
I/O
EMC_A[14] — External memory address line 14.
P4[13]
155 B16
B14
108
[3]
P4[14]
159 B15
E8
110
[3]
I;
PU
I/O
P4[15] — General purpose digital input/output pin.
I/O
EMC_A[15] — External memory address line 15.
I;
PU
I/O
P4[16] — General purpose digital input/output pin.
I/O
EMC_A[16] — External memory address line 16.
P4[15]
173 A11
C10
120
[3]
P4[16]
101 U17
N12
-
[3]
I;
PU
I/O
P4[17] — General purpose digital input/output pin.
I/O
EMC_A[17] — External memory address line 17.
I;
PU
I/O
P4[18] — General purpose digital input/output pin.
I/O
EMC_A[18] — External memory address line 18.
P4[17]
104 P14
N13
-
[3]
P4[18]
105 P15
P14
-
[3]
LPC178X_7X
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
30 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I;
PU
I/O
P4[19] — General purpose digital input/output pin.
I/O
EMC_A[19] — External memory address line 19.
-
[3]
I;
PU
I/O
P4[20] — General purpose digital input/output pin.
I/O
EMC_A[20] — External memory address line 20.
I/O
I2C2_SDA — I2C2 data input/output (this pin does not use a
specialized I2C pad).
I/O
SSP1_SCK — Serial Clock for SSP1.
I/O
P4[21] — General purpose digital input/output pin.
I/O
EMC_A[21] — External memory address line 21.
I/O
I2C2_SCL — I2C2 clock input/output (this pin does not use a
specialized I2C pad).
I/O
SSP1_SSEL — Slave Select for SSP1.
I/O
P4[22] — General purpose digital input/output pin.
109 R17
P4[22]
P4[23]
115
M15 -
123 K14
129 J15
-
-
Pin LQFP144
P4[20]
-
-
-
-
[3]
[3]
[3]
I;
PU
I;
PU
I;
PU
Type[2]
Ball TFBGA180
[3]
111
Reset state[1]
Ball TFBGA208
M14 -
P4[19]
P4[21]
Description
P16
Pin LQFP208
Symbol
I/O
EMC_A[22] — External memory address line 22.
O
U2_TXD — Transmitter output for UART2.
I/O
SSP1_MISO — Master In Slave Out for SSP1.
I/O
P4[23] — General purpose digital input/output pin.
I/O
EMC_A[23] — External memory address line 23.
I
U2_RXD — Receiver input for UART2.
I/O
SSP1_MOSI — Master Out Slave In for SSP1.
P4[24]
183 B8
C8
127
[3]
P4[25]
179 B9
D9
124
[3]
I;
PU
I/O
P4[26] — General purpose digital input/output pin.
O
EMC_BLS0 — LOW active Byte Lane select signal 0.
I;
PU
I/O
P4[27] — General purpose digital input/output pin.
O
EMC_BLS1 — LOW active Byte Lane select signal 1.
I;
PU
I/O
P4[28] — General purpose digital input/output pin.
P4[26]
119
L15
K13
-
[3]
P4[27]
139 G15
F14
-
[3]
118
[3]
P4[28]
170 C11
LPC178X_7X
Product data sheet
D10
I;
PU
I/O
P4[24] — General purpose digital input/output pin.
O
EMC_OE — LOW active Output Enable signal.
I;
PU
I/O
P4[25] — General purpose digital input/output pin.
O
EMC_WE — LOW active Write Enable signal.
O
EMC_BLS2 — LOW active Byte Lane select signal 2.
O
U3_TXD — Transmitter output for UART3.
O
T2_MAT0 — Match output for Timer 2, channel 0.
-
R — Function reserved.
O
LCD_VD[6] — LCD data.
O
LCD_VD[10] — LCD data.
O
LCD_VD[2] — LCD data.
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
31 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P4[30]
P4[31]
176 B10
187 B7
193 A4
122
C7
E7
130
134
[3]
[3]
[3]
I;
PU
P5[1]
P5[2]
9
30
117
LPC178X_7X
Product data sheet
F4
J4
L14
E5
H1
L12
6
21
81
[3]
[3]
[11]
I/O
P4[29] — General purpose digital input/output pin.
O
EMC_BLS3 — LOW active Byte Lane select signal 3.
I
U3_RXD — Receiver input for UART3.
O
T2_MAT1 — Match output for Timer 2, channel 1.
I/O
I2C2_SCL — I2C2 clock input/output (this pin does not use a
specialized I2C pad).
O
LCD_VD[7] — LCD data.
O
LCD_VD[11] — LCD data.
O
LCD_VD[3] — LCD data.
I;
PU
I/O
P4[30] — General purpose digital input/output pin.
O
EMC_CS0 — LOW active Chip Select 0 signal.
I;
PU
I/O
P4[31] — General purpose digital input/output pin.
O
EMC_CS1 — LOW active Chip Select 1 signal.
I/O
Port 5: Port 5 is a 5-bit I/O port with individual direction controls
for each bit. The operation of port 5 pins depends upon the pin
function selected via the pin connect block.
I/O
P5[0] — General purpose digital input/output pin.
I/O
EMC_A[24] — External memory address line 24.
I/O
SSP2_MOSI — Master Out Slave In for SSP2.
O
T2_MAT2 — Match output for Timer 2, channel 2.
I/O
P5[1] — General purpose digital input/output pin.
I/O
EMC_A[25] — External memory address line 25.
I/O
SSP2_MISO — Master In Slave Out for SSP2.
O
T2_MAT3 — Match output for Timer 2, channel 3.
I/O
P5[2] — General purpose digital input/output pin.
P5[0] to P5[4]
P5[0]
Type[2]
B9
Reset state[1]
Pin LQFP144
P4[29]
Description
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I;
PU
I;
PU
I
-
R — Function reserved.
-
R — Function reserved.
O
T3_MAT2 — Match output for Timer 3, channel 2.
-
R — Function reserved.
I/O
I2C0_SDA — I2C0 data input/output (this pin uses a specialized
I2C pad that supports I2C Fast Mode Plus).
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
32 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
P5[4]
206 C3
Pin LQFP144
G10 98
C4
143
[11]
[3]
Type[2]
141 G14
Description
Reset state[1]
P5[3]
Ball TFBGA180
Pin LQFP208
Symbol
Ball TFBGA208
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
I
I/O
I;
PU
P5[3] — General purpose digital input/output pin.
-
R — Function reserved.
-
R — Function reserved.
-
R — Function reserved.
I
U4_RXD — Receiver input for USART4.
I/O
I2C0_SCL — I2C0 clock input/output (this pin uses a
specialized I2C pad that supports I2C Fast Mode Plus).
I/O
P5[4] — General purpose digital input/output pin.
O
U0_OE — RS-485/EIA-485 output enable signal for UART0.
-
R — Function reserved.
O
T3_MAT3 — Match output for Timer 3, channel 3.
O
U4_TXD — Transmitter output for USART4 (input/output in
smart card mode).
JTAG_TDO
(SWO)
2
D3
B1
1
[3]
O
O
Test Data Out for JTAG interface. Also used as Serial wire trace
output.
JTAG_TDI
4
C2
C3
3
[3]
I;
PU
I
Test Data In for JTAG interface.
JTAG_TMS
(SWDIO)
6
E3
C2
4
[3]
I;
PU
I
Test Mode Select for JTAG interface. Also used as Serial wire
debug data input/output.
JTAG_TRST
8
D1
D4
5
[3]
I;
PU
I
Test Reset for JTAG interface.
JTAG_TCK
(SWDCLK)
10
E2
D2
7
[3]
i
I
Test Clock for JTAG interface. This clock must be slower than
1/6 of the CPU clock (CCLK) for the JTAG interface to operate.
Also used as serial wire clock.
RESET
35
M2
J1
24
[12]
I;
PU
I
External reset input with 20 ns glitch filter. A LOW-going pulse
as short as 50 ns on this pin resets the device, causing I/O ports
and peripherals to take on their default states, and processor
execution to begin at address 0. This pin also serves as the
debug select input. LOW level selects the JTAG boundary scan.
HIGH level selects the ARM SWD debug mode.
RSTOUT
29
K3
H2
20
[3]
OH
O
Reset status output. A LOW output on this pin indicates that the
device is in the reset state for any reason. This reflects the
RESET input pin and all internal reset sources.
RTC_ALARM
37
N1
H5
26
[13]
OL
O
RTC controlled output. This pin has a low drive strength and is
powered by VBAT. It is driven HIGH when an RTC alarm is
generated.
RTCX1
34
K2
J2
23
[14]
-
I
Input to the RTC 32 kHz ultra-low power oscillator circuit.
-
O
Output from the RTC 32 kHz ultra-low power oscillator circuit.
-
I/O
USB port 2 bidirectional D line.
[15]
RTCX2
36
L2
J3
25
[14]
[15]
USB_D2
52
LPC178X_7X
Product data sheet
U1
N2
37
[9]
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
33 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 3.
Pin description …continued
Not all functions are available on all parts. See Table 2 (Ethernet, USB, LCD, QEI, SD/MMC, DAC pins) and Table 7 (EMC
pins).
Pin LQFP144
Reset state[1]
Type[2]
Ball TFBGA208
VBAT
38
M3
VDD(REG)(3V3)
Description
Ball TFBGA180
Pin LQFP208
Symbol
K1
27
-
I
RTC power supply: 3.0 V on this pin supplies power to the RTC.
26, H4, G1,
86, P11, N9,
174 D11 E9
18,
60,
121
-
S
3.3 V regulator supply voltage: This is the power supply for the
on-chip voltage regulator that supplies internal logic.
VDDA
20
G4
F2
14
-
S
Analog 3.3 V pad supply voltage: This can be connected to the
same supply as VDD(3V3) but should be isolated to minimize
noise and error. This voltage is used to power the ADC and
DAC. Note: This pin should be tied to 3.3 V if the ADC and
DAC are not used.
VDD(3V3)
15,
60,
71,
89,
112,
125,
146,
165,
181,
198
G3,
P6,
P8,
U13,
P17,
K16,
C17,
B13,
C9,
D7
E2,
L4,
K8,
L11,
J14,
E12,
E10,
C5
41,
62,
77,
102,
114,
138
-
S
3.3 V supply voltage: This is the power supply voltage for I/O
other than pins in the VBAT domain.
VREFP
24
K1
G2
17
-
S
ADC positive reference voltage: This should be the same
voltage as VDDA, but should be isolated to minimize noise and
error. The voltage level on this pin is used as a reference for
ADC and DAC. Note: This pin should be tied to 3.3 V if the
ADC and DAC are not used.
VSS
33,
63,
77,
93,
114,
133,
148,
169,
189,
200
L3,
T5,
R9,
P12,
N16,
H14,
E15,
A12,
B6,
A2
H4,
P4,
L9,
L13,
G13,
D13,
C11,
B4
44,
65,
79,
103,
117,
139
-
G
Ground: 0 V reference for digital IO pins.
VSSREG
32, D12, H3,
84, K4, L8,
172 P10 A10
22,
59,
119
-
G
Ground: 0 V reference for internal logic.
VSSA
22
J2
F3
15
-
G
Analog ground: 0 V power supply and reference for the ADC
and DAC. This should be the same voltage as VSS, but should
be isolated to minimize noise and error.
XTAL1
44
M4
L2
31
-
I
Input to the oscillator circuit and internal clock generator circuits.
-
O
Output from the oscillator amplifier.
[14]
[16]
XTAL2
46
N4
K4
33
[14]
[16]
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32-bit ARM Cortex-M3 microcontroller
[1]
PU = internal pull-up enabled (for VDD(REG)(3V3) = 3.3 V, pulled up to 3.3 V); IA = inactive, no pull-up/down enabled; F = floating; floating
pins, if not used, should be tied to ground or power to minimize power consumption.
[2]
I = Input; O = Output; OL = Output driving LOW; G = Ground; S = Supply.
[3]
5 V tolerant pad (5 V tolerant if VDD(3V3) present; if VDD(3V3) not present, do not exceed 3.6 V) providing digital I/O functions with TTL
levels and hysteresis.
[4]
5 V tolerant standard pad (5 V tolerant if VDD(3V3) present; if VDD(3V3) not present, do not exceed 3.6 V) providing digital I/O functions with
TTL levels and hysteresis. This pad can be powered by VBAT.
[5]
5 V tolerant pad (5 V tolerant if VDD(3V3) present; if VDD(3V3) not present or configured for an analog function, do not exceed 3.6 V)
providing digital I/O functions with TTL levels and hysteresis and analog input. When configured as a ADC input, digital section of the
pad is disabled.
[6]
5 V tolerant fast pad (5 V tolerant if VDD(3V3) present; if VDD(3V3) not present, do not exceed 3.6 V) providing digital I/O functions with TTL
levels and hysteresis.
[7]
5 V tolerant pad (5 V tolerant if VDD(3V3) present; if VDD(3V3) not present or configured for an analog function, do not exceed 3.6 V)
providing digital I/O with TTL levels and hysteresis and analog output function. When configured as the DAC output, digital section of the
pad is disabled.
[8]
Open-drain 5 V tolerant digital I/O pad, compatible with I2C-bus 400 kHz specification. It requires an external pull-up to provide output
functionality. When power is switched off, this pin connected to the I2C-bus is floating and does not disturb the I2C lines. Open-drain
configuration applies to all functions on this pin.
[9]
Not 5 V tolerant. Pad provides digital I/O and USB functions. It is designed in accordance with the USB specification, revision 2.0
(Full-speed and Low-speed mode only).
[10] 5 V tolerant pad (5 V tolerant if VDD(3V3) present; if VDD(3V3) not present, do not exceed 3.6 V) with 5 ns glitch filter providing digital I/O
functions with TTL levels and hysteresis.
[11] Open-drain 5 V tolerant digital I/O pad, compatible with I2C-bus 1 MHz specification. It requires an external pull-up to provide output
functionality. When power is switched off, this pin connected to the I2C-bus is floating and does not disturb the I2C lines. Open-drain
configuration applies to all functions on this pin.
[12] 5 V tolerant pad (5 V tolerant if VDD(3V3) present; if VDD(3V3) not present, do not exceed 3.6 V) with 20 ns glitch filter providing digital I/O
function with TTL levels and hysteresis.
[13] This pad can be powered from VBAT.
[14] Pad provides special analog functionality. A 32 kHz crystal oscillator must be used with the RTC. An external clock (32 kHz) can’t be
used to drive the RTCX1 pin.
[15] If the RTC is not used, these pins can be left floating.
[16] When the main oscillator is not used, connect XTAL1 and XTAL2 as follows: XTAL1 can be left floating or can be grounded (grounding
is preferred to reduce susceptibility to noise). XTAL2 should be left floating.
Table 4.
Pin allocation table TFBGA208
Not all functions are available on all parts. See Table 2 and Table 7 (EMC pins).
Ball
Symbol
Ball Symbol
Ball
Symbol
Ball
Symbol
P3[27]
2
3
P1[0]
4
P4[31]
Row A
1
VSS
5
P1[4]
6
P1[9]
7
P1[14]
8
P1[15]
9
P1[17]
10
P1[3]
11
P4[15]
12
VSS
13
P3[20]
14
P1[11]
15
P0[8]
16
P1[12]
17
P1[5]
-
-
-
Row B
1
P3[2]
2
P3[10]
3
P3[1]
4
P3[0]
5
P1[1]
6
VSS
7
P4[30]
8
P4[24]
9
P4[25]
10
P4[29]
11
P1[6]
12
P0[4]
13
VDD(3V3)
14
P3[19]
15
P4[14]
16
P4[13]
17
P2[0]
-
-
-
Row C
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35 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 4.
Pin allocation table TFBGA208
Not all functions are available on all parts. See Table 2 and Table 7 (EMC pins).
Ball
Symbol
Ball Symbol
Ball
Symbol
Ball
Symbol
1
P3[13]
2
JTAG_TDI
3
P5[4]
4
P0[2]
5
P3[9]
6
P3[22]
7
P1[8]
8
P1[10]
9
VDD(3V3)
10
P3[21]
11
P4[28]
12
P0[5]
13
P0[7]
14
P0[9]
15
P3[18]
16
P4[12]
17
VDD(3V3)
-
-
-
Row D
1
JTAG_TRST
2
P3[28]
3
JTAG_TDO (SWO)
4
P3[12]
5
P3[11]
6
P0[3]
7
VDD(3V3)
8
P3[8]
9
P1[2]
10
P1[16]
11
VDD(REG)(3V3)
12
VSSREG
13
P0[6]
14
P1[7]
15
P2[2]
16
P1[13]
17
P2[4]
-
-
-
Row E
1
P0[26]
2
JTAG_TCK
(SWDCLK)
3
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
P2[1]
15
VSS
16
P2[3]
17
P2[6]
-
JTAG_TMS (SWDIO)
4
-
P3[3]
-
Row F
1
P0[25]
2
P3[4]
3
P3[29]
4
P5[0]
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
P4[11]
15
P3[17]
16
P2[5]
17
P3[16]
-
-
-
Row G
1
P3[5]
2
P0[24]
3
VDD(3V3)
4
VDDA
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
P5[3]
15
P4[27]
16
P2[7]
17
P4[10]
-
-
-
Row H
1
P0[23]
2
P3[14]
3
P3[30]
4
VDD(REG)(3V3)
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
VSS
15
P2[8]
16
17
P4[9]
-
-
P2[9]
-
Row J
1
P3[6]
2
VSSA
3
P3[31]
4
P5[1]
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
LPC178X_7X
Product data sheet
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Rev. 5.5 — 26 April 2016
© NXP Semiconductors N.V. 2016. All rights reserved.
36 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 4.
Pin allocation table TFBGA208
Not all functions are available on all parts. See Table 2 and Table 7 (EMC pins).
Ball
Symbol
13
17
Ball Symbol
Ball
Symbol
Ball
Symbol
14
15
P4[23]
16
P0[15]
P4[8]
P0[16]
-
-
-
Row K
1
VREFP
2
RTCX1
3
RSTOUT
4
VSSREG
13
-
14
P4[22]
15
P0[18]
16
VDD(3V3)
17
P0[17]
-
-
-
Row L
1
P3[7]
2
RTCX2
3
VSS
4
P2[30]
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
P5[2]
15
P4[26]
16
P4[7]
17
P0[19]
-
-
-
Row M
1
P3[15]
2
RESET
3
VBAT
4
XTAL1
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
P4[6]
15
P4[21]
16
P0[21]
17
P0[20]
-
-
-
Row N
1
RTC_ALARM
2
P2[31]
3
P2[29]
4
XTAL2
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
P2[12
15
P2[10]
16
VSS
17
P0[22]
-
-
-
Row P
1
P1[31]
2
P1[30]
3
P2[27]
4
P2[28]
5
P2[24]
6
VDD(3V3)
9
P1[23]
10
VSSREG
7
P1[18]
8
VDD(3V3)
11
VDD(REG)(3V3)
12
VSS
13
P2[15]
14
P4[17]
15
P4[18]
16
P4[19]
17
VDD(3V3)
-
-
-
Row R
1
P0[12]
2
P0[13]
3
P0[28]
4
P2[25]
5
P3[24]
6
P0[30]
7
P2[19]
8
P1[21]
9
VSS
10
P1[26]
11
P2[16]
12
P2[14]
13
P2[17]
14
P0[11]
15
P4[4]
16
17
P4[20]
-
-
P4[5]
-
Row T
1
P0[27]
2
P0[31]
5
9
VSS
6
P3[23]
7
P0[14]
8
P2[20]
P1[24]
10
P1[25]
11
P4[2]
12
P1[27]
LPC178X_7X
Product data sheet
3
P3[26]
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Rev. 5.5 — 26 April 2016
4
P2[26]
© NXP Semiconductors N.V. 2016. All rights reserved.
37 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 4.
Pin allocation table TFBGA208
Not all functions are available on all parts. See Table 2 and Table 7 (EMC pins).
Ball
Symbol
Ball Symbol
Ball
Symbol
Ball
Symbol
13
P1[28]
14
15
P0[10]
16
P2[13]
17
P2[11]
P0[1]
-
-
-
Row U
1
USB_D-2
2
P3[25]
3
P2[18]
4
P0[29]
5
P2[23]
6
P1[19]
7
P1[20]
8
P1[22]
9
P4[0]
10
P4[1]
11
P2[21]
12
P2[22]
13
VDD(3V3)
14
P1[29]
15
P0[0]
16
P4[3]
17
P4[16]
-
-
-
Table 5.
Pin allocation table TFBGA180
Not all functions are available on all parts. See Table 2 and Table 7 (EMC pins).
Ball
Symbol
Ball Symbol
Ball
Symbol
Ball
Symbol
5
P1[1]
6
P3[8]
7
P1[10]
8
P1[15]
9
P1[3]
10
VSSREG
11
P0[4]
12
P1[11]
13
P0[9]
14
P1[12]
1
JTAG_TDO (SWO)
2
P3[11]
3
P3[10]
4
VSS
5
P1[0]
6
P1[8]
7
P1[2]
8
P1[16]
9
P4[29]
10
P1[6]
11
P0[5]
12
P0[7]
13
P1[5]
14
P4[13]
1
P3[13]
2
JTAG_TMS (SWDIO)
3
JTAG_TDI
4
P5[4]
5
VDD(3V3)
6
P1[4]
7
P4[30]
8
P4[24]
9
P1[17]
10
P4[15]
11
VSS
12
P0[8]
13
P1[7]
14
P2[1]
1
P0[26]
2
JTAG_TCK
(SWDCLK)
3
P3[4]
4
JTAG_TRST
5
P0[2]
6
P3[0]
7
P1[9]
8
P1[14]
9
P4[25]
10
P4[28]
11
P0[6]
12
P2[0]
13
VSS
14
P1[13]
1
P0[24]
2
VDD(3V3)
3
P3[5]
4
P0[25]
5
P5[0]
6
P3[1]
7
P4[31]
8
P4[14]
9
VDD(REG)(3V3)
10
VDD(3V3)
11
P2[2]
12
13
P2[3]
14
P2[4]
P3[14]
2
VDDA
5
P0[23]
6
-
7
-
8
-
9
-
10
P4[12]
11
P4[11]
12
P2[5]
Row A
-
-
Row B
-
-
Row C
-
-
Row D
-
-
Row E
-
VDD(3V3)
-
Row F
1
LPC178X_7X
Product data sheet
3
VSSA
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Rev. 5.5 — 26 April 2016
4
P3[6]
© NXP Semiconductors N.V. 2016. All rights reserved.
38 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 5.
Pin allocation table TFBGA180
Not all functions are available on all parts. See Table 2 and Table 7 (EMC pins).
Ball
Symbol
Ball Symbol
13
P2[6]
14
Ball
P4[27]
Symbol
Ball
-
Symbol
-
Row G
1
VDD(REG)(3V3)
2
VREFP
3
P3[7]
4
P3[15]
5
P3[3]
6
-
7
-
8
-
9
-
10
P5[3]
11
P2[7]
12
P4[10]
13
VSS
14
P2[8]
1
P5[1]
2
RSTOUT
3
VSSREG
4
VSS
5
RTC_ALARM
6
-
7
-
8
-
9
-
10
P4[5]
11
P2[9]
12
P4[9]
13
P0[15]
14
P0[16]
-
-
Row H
LPC178X_7X
Product data sheet
-
All information provided in this document is subject to legal disclaimers.
Rev. 5.5 — 26 April 2016
-
© NXP Semiconductors N.V. 2016. All rights reserved.
39 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
Table 5.
Pin allocation table TFBGA180
Not all functions are available on all parts. See Table 2 and Table 7 (EMC pins).
Ball
Symbol
Ball Symbol
Ball
Symbol
Ball
Symbol
RESET
2
RTCX1
3
RTCX2
4
P0[12]
Row J
1
5
P0[13]
6
-
7
-
8
-
9
-
10
P0[19]
11
P4[8]
12
P0[17]
13
P0[18]
14
VDD(3V3)
1
VBAT
2
P1[31]
3
P1[30]
4
XTAL2
5
P0[29]
6
P1[20]
7
P3[26]
8
VDD(3V3)
9
P4[3]
10
P4[6]
11
P0[21]
12
P4[7]
13
P4[26]
14
P0[20]
1
P2[29]
2
XTAL1
3
P0[27]
4
VDD(3V3)
5
P1[18]
6
P4[0]
7
P1[25]
8
VSSREG
9
VSS
10
P0[10]
11
VDD(3V3)
12
P5[2]
13
VSS
14
P0[22]
-
-
Row K
-
-
Row L
-
-
Row M
1
P0[28]
2
P2[28]
3
P3[25]
4
P3[23]
5
P0[14]
6
P1[22]
7
P4[1]
8
P4[2]
9
P1[27]
10
P0[0]
11
P2[13]
12
P2[11]
13
P2[10]
14
P4[19]
1
P0[31]
2
USB_D-2
3
P3[24]
4
P0[30]
5
P2[19]
6
P1[21]
7
P1[23]
8
P2[21]
9
VDD(REG)(3V3)
10
P1[29]
11
P0[1]
12
P4[16]
13
P4[17]
14
P2[12]
-
-
Row N
-
-
Row P
1
P2[24]
2
P2[25]
3
P2[18]
4
VSS
5
P1[19]
6
P2[20]
7
P1[24]
8
P1[26]
9
P2[16]
10
P1[28]
11
P2[17]
12
P0[11]
13
P4[4]
14
P4[18]
-
-
7. Functional description
7.1 Architectural overview
The ARM Cortex-M3 includes three AHB-Lite buses: the system bus, the I-code bus, and
the D-code bus. The I-code and D-code core buses are faster than the system bus and
are used similarly to Tightly Coupled Memory (TCM) interfaces: one bus dedicated for
instruction fetch (I-code) and one bus for data access (D-code). The use of two core
buses allows for simultaneous operations if concurrent operations target different devices.
LPC178X_7X
Product data sheet
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© NXP Semiconductors N.V. 2016. All rights reserved.
40 of 126
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
The LPC178x/7x use a multi-layer AHB matrix to connect the ARM Cortex-M3 buses and
other bus masters to peripherals in a flexible manner that optimizes performance by
allowing peripherals that are on different slaves ports of the matrix to be accessed
simultaneously by different bus masters.
7.2 ARM Cortex-M3 processor
The ARM Cortex-M3 is a general purpose, 32-bit microprocessor, which offers high
performance and very low power consumption. The ARM Cortex-M3 offers many new
features, including a Thumb-2 instruction set, low interrupt latency, hardware division,
hardware single-cycle multiply, interruptable/continuable multiple load and store
instructions, automatic state save and restore for interrupts, tightly integrated interrupt
controller with wake-up interrupt controller, and multiple core buses capable of
simultaneous accesses.
Pipeline techniques are employed so that all parts of the processing and memory systems
can operate continuously. Typically, while one instruction is being executed, its successor
is being decoded, and a third instruction is being fetched from memory.
The ARM Cortex-M3 processor is described in detail in the Cortex-M3 Technical
Reference Manual that can be found on official ARM website.
7.3 On-chip flash program memory
The LPC178x/7x contain up to 512 kB of on-chip flash program memory. A new two-port
flash accelerator maximizes performance for use with the two fast AHB-Lite buses.
7.4 EEPROM
The LPC178x/7x contains up to 4032 byte of on-chip byte-erasable and
byte-programmable EEPROM data memory.
7.5 On-chip SRAM
The LPC178x/7x contain a total of up to 96 kB on-chip static RAM data memory. This
includes the main 64 kB SRAM, accessible by the CPU and DMA controller on a
higher-speed bus, and up to two additional 16 kB each SRAM blocks situated on a
separate slave port on the AHB multilayer matrix.
This architecture allows CPU and DMA accesses to be spread over three separate RAMs
that can be accessed simultaneously.
7.6 Memory Protection Unit (MPU)
The LPC178x/7x have a Memory Protection Unit (MPU) which can be used to improve the
reliability of an embedded system by protecting critical data within the user application.
The MPU allows separating processing tasks by disallowing access to each other's data,
disabling access to memory regions, allowing memory regions to be defined as read-only
and detecting unexpected memory accesses that could potentially break the system.
LPC178X_7X
Product data sheet
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Rev. 5.5 — 26 April 2016
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LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
The MPU separates the memory into distinct regions and implements protection by
preventing disallowed accesses. The MPU supports up to eight regions each of which can
be divided into eight subregions. Accesses to memory locations that are not defined in the
MPU regions, or not permitted by the region setting, will cause the Memory Management
Fault exception to take place.
7.7 Memory map
Table 6.
LPC178x/177x memory usage and details
Address range
General Use
Address range details and description
0x0000 0000 to
0x1FFF FFFF
On-chip non-volatile
memory
0x0000 0000 - 0x0007 FFFF
For devices with 512 kB of flash memory.
0x0000 0000 - 0x0003 FFFF
For devices with 256 kB of flash memory.
0x0000 0000 - 0x0001 FFFF
For devices with 128 kB of flash memory.
On-chip main SRAM
0x2000 0000 to
0x3FFF FFFF
0x4000 0000 to
0x7FFF FFFF
0x8000 0000 to
0xDFFF FFFF
0x0000 0000 - 0x0000 FFFF
For devices with 64 kB of flash memory.
0x1000 0000 - 0x1000 FFFF
For devices with 64 kB of main SRAM.
0x1000 0000 - 0x1000 7FFF
For devices with 32 kB of main SRAM.
0x1000 0000 - 0x1000 3FFF
For devices with 16 kB of main SRAM.
Boot ROM
0x1FFF 0000 - 0x1FFF 1FFF
8 kB Boot ROM with flash services.
On-chip SRAM
(typically used for
peripheral data)
0x2000 0000 - 0x2000 1FFF
Peripheral RAM - bank 0 (first 8 kB)
0x2000 2000 - 0x2000 3FFF
Peripheral RAM - bank 0 (second 8 kB)
0x2000 4000 - 0x2000 7FFF
Peripheral RAM - bank 1 (16 kB)
AHB peripherals
0x2008 0000 - 0x200B FFFF
See Figure 6 for details
APB Peripherals
0x4000 0000 - 0x4007 FFFF
APB0 Peripherals, up to 32 peripheral blocks of
16 kB each.
0x4008 0000 - 0x400F FFFF
APB1 Peripherals, up to 32 peripheral blocks of
16 kB each.
Off-chip Memory via
the External Memory
Controller
Four static memory chip selects:
0x8000 0000 - 0x83FF FFFF
Static memory chip select 0 (up to 64 MB)
0x9000 0000 - 0x93FF FFFF
Static memory chip select 1 (up to 64 MB)
0x9800 0000 - 0x9BFF FFFF
Static memory chip select 2 (up to 64 MB)
0x9C00 0000 - 0x9FFF FFFF
Static memory chip select 3 (up to 64 MB)
Four dynamic memory chip selects:
0xE000 0000 to
0xE00F FFFF
Cortex-M3 Private
Peripheral Bus
0xA000 0000 - 0xAFFF FFFF
Dynamic memory chip select 0 (up to 256MB)
0xB000 0000 - 0xBFFF FFFF
Dynamic memory chip select 1 (up to 256MB)
0xC000 0000 - 0xCFFF FFFF
Dynamic memory chip select 2 (up to 256MB)
0xD000 0000 - 0xDFFF FFFF
Dynamic memory chip select 3 (up to 256MB)
0xE000 0000 - 0xE00F FFFF
Cortex-M3 related functions, includes the NVIC
and System Tick Timer.
The LPC178x/7x incorporate several distinct memory regions, shown in the following
figures. Figure 6 shows the overall map of the entire address space from the user
program viewpoint following reset. The interrupt vector area supports address remapping.
The AHB peripheral area is 2 MB in size, and is divided to allow for up to 128 peripherals.
The APB peripheral area is 1 MB in size and is divided to allow for up to 64 peripherals.
Each peripheral of either type is allocated 16 kB of space. This allows simplifying the
address decoding for each peripheral.
LPC178X_7X
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xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx xxxxx
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xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx
4 GB
LPC178x/7x
system control
reserved
30 - 17 reserved
private peripheral bus
16
SD/MMC(1)
reserved
15
QEI(1)
0x400B 8000
14
0x400B 4000
13
motor control PWM
reserved
0x400B 0000
12
reserved
0x400A C000
11
SSP2
0x400A 8000
10
I2S
9
USART4(1)
0x400A 0000
8
I2C2
0x4009 C000
7
UART3
0x4009 8000
6
UART2
0x4009 4000
5
timer 3
0x4009 0000
4
timer 2
0x4008 C000
3
DAC
0x4008 8000
2
SSP0
0x400F C000
0x400C 0000
0x400B C000
0x400A 4000
Rev. 5.5 — 26 April 2016
0xE000 0000
reserved
APB1 peripherals
1 GB
APB0 peripherals
reserved
reserved
reserved
peripheral
SRAM bit-band alias addressing
AHB peripherals
reserved
16 kB peripheral SRAM1(1)
16 kB peripheral SRAM0(1)
0.5 GB
reserved
8 kB boot ROM
reserved
active interrupt vectors
0x4004 C000
17
CAN1
0x4004 4000
16
CAN common
0x4004 0000
15
CAN AF registers
14
CAN AF RAM
13
ADC
0x4003 4000
12
SSP1
0x4003 0000
11
pin connect
0x4002 C000
10
GPIO interrupts
0x4002 8000
9
RTC/event recorder
+ backup registers
0x4002 4000
8
reserved
7
I2C0
0x4001 C000
6
PWM1
0x4001 8000
0x2200 0000
5
PWM0
0x4001 4000
0x200A 0000
4
UART1
0x4001 0000
0x2008 0000
3
UART0
0x4000 C000
0x2000 8000
2
timer 1
0x4000 8000
0x2000 4000
1
0
timer 0
0x4000 4000
WWDT
0x4000 0000
0x8000 0000
0x4200 0000
0x4010 0000
0x4008 0000
0x4000 0000
0x2900 0000
0x2800 0000
0x2400 0000
0x2000 0000
AHB peripherals
0x1FFF 2000
7
EMC registers
0x1FFF 0000
6
GPIO
0x1001 0000
0x1000 0000
0x0008 0000
512 kB on-chip flash(1)
0 GB
0x4005 C000
CAN2
64 kB main static RAM(1)
reserved
+ 256 words
0x4006 0000
5
reserved
4
CRC engine
3
USB(1)
2
LCD(1)
1
Ethernet(1)
0
GPDMA controller
0x4004 8000
0x4003 C000
0x4003 8000
0x4002 0000
0x200A 0000
0x2009 C000
0x2009 8000
0x2009 4000
0x2009 0000
0x2008 C000
0x2008 8000
0x2008 4000
0x0000 0000
0x2008 0000
002aaf574
(1) Not available on all parts. See Table 2 and Table 6.
Fig 6.
LPC178x/7x memory map
LPC178x/7x
43 of 126
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I-code/D-code
memory space
I2C1
0x4008 0000
18
0x4400 0000
peripheral bit-band alias addressing
23
22 - 19 reserved
reserved
reserved
0x0000 0000
0xE004 0000
0xA000 0000
EMC 4 x static chip select(1)
31 - 24 reserved
0xE010 0000
EMC 4 x dynamic chip select(1)
1 - 0 reserved
0x0000 0400
APB0 peripherals
0xFFFF FFFF
32-bit ARM Cortex-M3 microcontroller
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0x4008 0000
31
NXP Semiconductors
LPC178X_7X
Product data sheet
APB1 peripherals
0x4010 0000
LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
7.8 Nested Vectored Interrupt Controller (NVIC)
The NVIC is an integral part of the Cortex-M3. The tight coupling to the CPU allows for low
interrupt latency and efficient processing of late arriving interrupts.
7.8.1 Features
•
•
•
•
•
•
Controls system exceptions and peripheral interrupts.
On the LPC178x/7x, the NVIC supports 40 vectored interrupts.
32 programmable interrupt priority levels, with hardware priority level masking.
Relocatable vector table.
Non-Maskable Interrupt (NMI).
Software interrupt generation.
7.8.2 Interrupt sources
Each peripheral device has one interrupt line connected to the NVIC but may have several
interrupt flags. Individual interrupt flags may also represent more than one interrupt
source.
Any pin on port 0 and port 2 regardless of the selected function can be programmed to
generate an interrupt on a rising edge, a falling edge, or both.
7.9 Pin connect block
The pin connect block allows selected pins of the microcontroller to have more than one
function. Configuration registers control the multiplexers to allow connection between the
pin and the on-chip peripherals.
Peripherals should be connected to the appropriate pins prior to being activated and prior
to any related interrupt(s) being enabled. Activity of any enabled peripheral function that is
not mapped to a related pin should be considered undefined.
Most pins can also be configured as open-drain outputs or to have a pull-up, pull-down, or
no resistor enabled.
7.10 External memory controller
Remark: Supported memory size and type and EMC bus width vary for different parts
(see Table 2). The EMC pin configuration for each part is shown in Table 7.
LPC178X_7X
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32-bit ARM Cortex-M3 microcontroller
Table 7.
External memory controller pin configuration
Part
Data bus pins Address bus
pins
Control pins
SRAM
SDRAM
LPC1788FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1788FET208
EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1788FET180
EMC_D[15:0]
EMC_A[19:0]
EMC_BLS[1:0],
EMC_CS[1:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[1:0],
EMC_CLK[1:0], EMC_CKE[1:0],
EMC_DQM[1:0]
LPC1788FBD144 EMC_D[7:0]
EMC_A[15:0]
EMC_BLS[3:2],
EMC_CS[1:0],
EMC_OE, EMC_WE
not available
LPC1787FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS_[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1786FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1785FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1778FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1778FET208
EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1778FET180
EMC_D[15:0]
EMC_A[19:0]
EMC_BLS[1:0],
EMC_CS[1:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[1:0],
EMC_CLK[1:0], EMC_CKE[1:0],
EMC_DQM[1:0]
LPC1778FBD144 EMC_D[7:0]
EMC_A[15:0]
EMC_CS[1:0],
EMC_OE, EMC_WE
not available
LPC1777FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1776FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1776FET180
EMC_D[15:0]
EMC_A[19:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[1:0],
EMC_CLK[1:0], EMC_CKE[1:0],
EMC_DQM[1:0]
LPC1774FBD208 EMC_D[31:0]
EMC_A[25:0]
EMC_BLS[3:0],
EMC_CS[3:0],
EMC_OE, EMC_WE
EMC_RAS, EMC_CAS, EMC_DYCS[3:0],
EMC_CLK[1:0], EMC_CKE[3:0],
EMC_DQM[3:0]
LPC1774FBD144 EMC_D[7:0]
EMC_A[15:0]
EMC_CS[1:0],
EMC_OE, EMC_WE
not available
LPC178X_7X
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32-bit ARM Cortex-M3 microcontroller
The LPC178x/7x EMC is an ARM PrimeCell MultiPort Memory Controller peripheral
offering support for asynchronous static memory devices such as RAM, ROM, and flash.
In addition, it can be used as an interface with off-chip memory-mapped devices and
peripherals. The EMC is an Advanced Microcontroller Bus Architecture (AMBA) compliant
peripheral.
See Table 6 for EMC memory access.
7.10.1 Features
• Dynamic memory interface support including single data rate SDRAM.
• Asynchronous static memory device support including RAM, ROM, and flash, with or
without asynchronous page mode.
•
•
•
•
•
Low transaction latency.
Read and write buffers to reduce latency and to improve performance.
8/16/32 data and 16/20/26 address lines wide static memory support.
16 bit and 32 bit wide chip select SDRAM memory support.
Static memory features include:
– Asynchronous page mode read.
– Programmable Wait States.
– Bus turnaround delay.
– Output enable and write enable delays.
– Extended wait.
• Four chip selects for synchronous memory and four chip selects for static memory
devices.
• Power-saving modes dynamically control EMC_CKE and EMC_CLK outputs to
SDRAMs.
• Dynamic memory self-refresh mode controlled by software.
• Controller supports 2048 (A0 to A10), 4096 (A0 to A11), and 8192 (A0 to A12) row
address synchronous memory parts. That is typical 512 MB, 256 MB, and 128 MB
parts, with 4, 8, 16, or 32 data bits per device.
• Separate reset domains allow the for auto-refresh through a chip reset if desired.
Note: Synchronous static memory devices (synchronous burst mode) are not supported.
7.11 General purpose DMA controller
The GPDMA is an AMBA AHB compliant peripheral allowing selected peripherals to have
DMA support.
The GPDMA enables peripheral-to-memory, memory-to-peripheral,
peripheral-to-peripheral, and memory-to-memory transactions. The source and
destination areas can each be either a memory region or a peripheral and can be
accessed through the AHB master. The GPDMA controller allows data transfers between
the various on-chip SRAM areas and supports the SD/MMC card interface, all SSPs, the
I2S, all UARTs, the A/D Converter, and the D/A Converter peripherals. DMA can also be
triggered by selected timer match conditions. Memory-to-memory transfers and transfers
to or from GPIO are supported.
LPC178X_7X
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32-bit ARM Cortex-M3 microcontroller
7.11.1 Features
• Eight DMA channels. Each channel can support an unidirectional transfer.
• 16 DMA request lines.
• Single DMA and burst DMA request signals. Each peripheral connected to the DMA
Controller can assert either a burst DMA request or a single DMA request. The DMA
burst size is set by programming the DMA Controller.
• Memory-to-memory, memory-to-peripheral, peripheral-to-memory, and
peripheral-to-peripheral transfers are supported.
• Scatter or gather DMA is supported through the use of linked lists. This means that
the source and destination areas do not have to occupy contiguous areas of memory.
• Hardware DMA channel priority.
• AHB slave DMA programming interface. The DMA Controller is programmed by
writing to the DMA control registers over the AHB slave interface.
• One AHB bus master for transferring data. The interface transfers data when a DMA
request goes active.
• 32-bit AHB master bus width.
• Incrementing or non-incrementing addressing for source and destination.
• Programmable DMA burst size. The DMA burst size can be programmed to more
efficiently transfer data.
• Internal four-word FIFO per channel.
• Supports 8, 16, and 32-bit wide transactions.
• Big-endian and little-endian support. The DMA Controller defaults to little-endian
mode on reset.
• An interrupt to the processor can be generated on a DMA completion or when a DMA
error has occurred.
• Raw interrupt status. The DMA error and DMA count raw interrupt status can be read
prior to masking.
7.12 CRC engine
The Cyclic Redundancy Check (CRC) generator with programmable polynomial settings
supports several CRC standards commonly used. To save system power and bus
bandwidth, the CRC engine supports DMA transfers.
7.12.1 Features
• Supports three common polynomials CRC-CCITT, CRC-16, and CRC-32.
– CRC-CCITT: x16 + x12 + x5 + 1
– CRC-16: x16 + x15 + x2 + 1
– CRC-32: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1
• Bit order reverse and 1’s complement programmable setting for input data and CRC
sum.
• Programmable seed number setting.
• Supports CPU PIO or DMA back-to-back transfer.
LPC178X_7X
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LPC178x/7x
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32-bit ARM Cortex-M3 microcontroller
• Accept any size of data width per write: 8, 16 or 32-bit.
– 8-bit write: 1-cycle operation.
– 16-bit write: 2-cycle operation (8-bit x 2-cycle).
– 32-bit write: 4-cycle operation (8-bit x 4-cycle).
7.13 LCD controller
Remark: The LCD controller is available on parts LPC1788/87/86/85.
The LCD controller provides all of the necessary control signals to interface directly to a
variety of color and monochrome LCD panels. Both STN (single and dual panel) and TFT
panels can be operated. The display resolution is selectable and can be up to 1024 768
pixels. Several color modes are provided, up to a 24-bit true-color non-palettized mode.
An on-chip 512-byte color palette allows reducing bus utilization (i.e. memory size of the
displayed data) while still supporting a large number of colors.
The LCD interface includes its own DMA controller to allow it to operate independently of
the CPU and other system functions. A built-in FIFO acts as a buffer for display data,
providing flexibility for system timing. Hardware cursor support can further reduce the
amount of CPU time needed to operate the display.
7.13.1 Features
•
•
•
•
AHB master interface to access frame buffer.
Setup and control via a separate AHB slave interface.
Dual 16-deep programmable 64-bit wide FIFOs for buffering incoming display data.
Supports single and dual-panel monochrome Super Twisted Nematic (STN) displays
with 4-bit or 8-bit interfaces.
• Supports single and dual-panel color STN displays.
• Supports Thin Film Transistor (TFT) color displays.
• Programmable display resolution including, but not limited to: 320 200, 320 240,
640 200, 640 240, 640 480, 800 600, and 1024 768.
•
•
•
•
•
•
•
•
•
•
•
•
LPC178X_7X
Product data sheet
Hardware cursor support for single-panel displays.
15 gray-level monochrome, 3375 color STN, and 32 K color palettized TFT support.
1, 2, or 4 bits-per-pixel (bpp) palettized displays for monochrome STN.
1, 2, 4, or 8 bpp palettized color displays for color STN and TFT.
16 bpp true-color non-palettized, for color STN and TFT.
24 bpp true-color non-palettized, for color TFT.
Programmable timing for different display panels.
256 entry, 16-bit palette RAM, arranged as a 128 32-bit RAM.
Frame, line, and pixel clock signals.
AC bias signal for STN, data enable signal for TFT panels.
Supports little and big-endian, and Windows CE data formats.
LCD panel clock may be generated from the peripheral clock, or from a clock input
pin.
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32-bit ARM Cortex-M3 microcontroller
7.14 Ethernet
Remark: The Ethernet block is available on parts LPC1788/86 and LPC1778/76.
The Ethernet block contains a full featured 10 Mbit/s or 100 Mbit/s Ethernet MAC
designed to provide optimized performance through the use of DMA hardware
acceleration. Features include a generous suite of control registers, half or full duplex
operation, flow control, control frames, hardware acceleration for transmit retry, receive
packet filtering and wake-up on LAN activity. Automatic frame transmission and reception
with scatter-gather DMA off-loads many operations from the CPU.
The Ethernet block and the CPU share the ARM Cortex-M3 D-code and system bus
through the AHB-multilayer matrix to access the various on-chip SRAM blocks for
Ethernet data, control, and status information.
The Ethernet block interfaces between an off-chip Ethernet PHY using the Media
Independent Interface (MII) or Reduced MII (RMII) protocol and the on-chip Media
Independent Interface Management (MIIM) serial bus.
7.14.1 Features
• Ethernet standards support:
– Supports 10 Mbit/s or 100 Mbit/s PHY devices including 10 Base-T, 100 Base-TX,
100 Base-FX, and 100 Base-T4.
– Fully compliant with IEEE standard 802.3.
– Fully compliant with 802.3x Full Duplex Flow Control and Half Duplex back
pressure.
– Flexible transmit and receive frame options.
– Virtual Local Area Network (VLAN) frame support
– .
• Memory management:
– Independent transmit and receive buffers memory mapped to shared SRAM.
– DMA managers with scatter/gather DMA and arrays of frame descriptors.
– Memory traffic optimized by buffering and pre-fetching.
• Enhanced Ethernet features:
– Receive filtering.
– Multicast and broadcast frame support for both transmit and receive.
– Optional automatic Frame Check Sequence (FCS) insertion with Circular
Redundancy Check (CRC) for transmit.
– Selectable automatic transmit frame padding.
– Over-length frame support for both transmit and receive allows any length frames.
– Promiscuous receive mode.
– Automatic collision back-off and frame retransmission.
– Includes power management by clock switching.
– Wake-on-LAN power management support allows system wake-up: using the
receive filters or a magic frame detection filter.
LPC178X_7X
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LPC178x/7x
NXP Semiconductors
32-bit ARM Cortex-M3 microcontroller
• Physical interface:
– Attachment of external PHY chip through standard MII or RMII interface.
– PHY register access is available via the MIIM interface.
7.15 USB interface
Remark: The USB Device/Host/OTG controller is available on parts LPC1788/87/86/85
and LPC1778/77/76. The USB Device-only controller is available on parts LPC1774.
The Universal Serial Bus (USB) is a 4-wire bus that supports communication between a
host and one or more (up to 127) peripherals. The host controller allocates the USB
bandwidth to attached devices through a token-based protocol. The bus supports hot
plugging and dynamic configuration of the devices. All transactions are initiated by the
host controller.
Details on typical USB interfacing solutions can be found in Section 14.1.
7.15.1 USB device controller
The device controller enables 12 Mbit/s data exchange with a USB host controller. It
consists of a register interface, serial interface engine, endpoint buffer memory, and a
DMA controller. The serial interface engine decodes the USB data stream and writes data
to the appropriate endpoint buffer. The status of a completed USB transfer or error
condition is indicated via status registers. An interrupt is also generated if enabled. When
enabled, the DMA controller transfers data between the endpoint buffer and the USB
RAM.
7.15.1.1
Features
•
•
•
•
•
Fully compliant with USB 2.0 Specification (full speed).
Supports 32 physical (16 logical) endpoints with a 4 kB endpoint buffer RAM.
Supports Control, Bulk, Interrupt and Isochronous endpoints.
Scalable realization of endpoints at run time.
Endpoint Maximum packet size selection (up to USB maximum specification) by
software at run time.
• Supports SoftConnect and GoodLink features.
• While USB is in the Suspend mode, the LPC178x/7x can enter one of the reduced
power modes and wake up on USB activity.
• Supports DMA transfers with all on-chip SRAM blocks on all non-control endpoints.
• Allows dynamic switching between CPU-controlled and DMA modes.
• Double buffer implementation for Bulk and Isochronous endpoints.
7.15.2 USB host controller
The host controller enables full- and low-speed data exchange with USB devices attached
to the bus. It consists of register interface, serial interface engine and DMA controller. The
register interface complies with the Open Host Controller Interface (OHCI) specification.
7.15.2.1
Features
• OHCI compliant.
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• Two downstream ports.
• Supports per-port power switching.
7.15.3 USB OTG controller
USB OTG is a supplement to the USB 2.0 Specification that augments the capability of
existing mobile devices and USB peripherals by adding host functionality for connection to
USB peripherals.
The OTG Controller integrates the host controller, device controller, and a master-only I2C
interface to implement OTG dual-role device functionality. The dedicated I2C interface
controls an external OTG transceiver.
7.15.3.1
Features
• Fully compliant with On-The-Go supplement to the USB 2.0 Specification, Revision
1.0a.
• Hardware support for Host Negotiation Protocol (HNP).
• Includes a programmable timer required for HNP and Session Request Protocol
(SRP).
• Supports any OTG transceiver compliant with the OTG Transceiver Specification
(CEA-2011), Rev. 1.0.
7.16 SD/MMC card interface
Remark: The SD/MMC card interface is available on parts LPC1788/87/86/85 and parts
LPC1778/77/76.
The Secure Digital and Multimedia Card Interface (MCI) allows access to external SD
memory cards. The SD card interface conforms to the SD Multimedia Card Specification
Version 2.11.
7.16.1 Features
• The MCI provides all functions specific to the SD/MMC memory card. These include
the clock generation unit, power management control, and command and data
transfer.
• Conforms to Multimedia Card Specification v2.11.
• Conforms to Secure Digital Memory Card Physical Layer Specification, v0.96.
• Can be used as a multimedia card bus or a secure digital memory card bus host. The
SD/MMC can be connected to several multimedia cards or a single secure digital
memory card.
• DMA supported through the GPDMA controller.
7.17 Fast general purpose parallel I/O
Device pins that are not connected to a specific peripheral function are controlled by the
GPIO registers. Pins may be dynamically configured as inputs or outputs. Separate
registers allow setting or clearing any number of outputs simultaneously. The value of the
output register may be read back as well as the current state of the port pins.
LPC178x/7x use accelerated GPIO functions:
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• GPIO registers are accessed through the AHB multilayer bus so that the fastest
possible I/O timing can be achieved.
• Mask registers allow treating sets of port bits as a group, leaving other bits
unchanged.
•
•
•
•
All GPIO registers are byte and half-word addressable.
Entire port value can be written in one instruction.
Support for Cortex-M3 bit banding.
Support for use with the GPDMA controller.
Additionally, any pin on Port 0 and Port 2 providing a digital function can be programmed
to generate an interrupt on a rising edge, a falling edge, or both. The edge detection is
asynchronous, so it may operate when clocks are not present such as during Power-down
mode. Each enabled interrupt can be used to wake up the chip from Power-down mode.
7.17.1 Features
• Bit level set and clear registers allow a single instruction to set or clear any number of
bits in one port.
• Direction control of individual bits.
• All I/O default to inputs after reset.
• Pull-up/pull-down resistor configuration and open-drain configuration can be
programmed through the pin connect block for each GPIO pin.
7.18 12-bit ADC
The LPC178x/7x contain one ADC. It is a single 12-bit successive approximation ADC
with eight channels and DMA support.
7.18.1 Features
•
•
•
•
•
•
•
•
•
•
12-bit successive approximation ADC.
Input multiplexing among eight pins.
Power-down mode.
Measurement range VSS to VREFP.
12-bit conversion rate: up to 400 kHz.
Individual channels can be selected for conversion.
Burst conversion mode for single or multiple inputs.
Optional conversion on transition of input pin or Timer Match signal.
Individual result registers for each ADC channel to reduce interrupt overhead.
DMA support.
7.19 10-bit DAC
The LPC178x/7x contain one DAC. The DAC allows to generate a variable analog output.
The maximum output value of the DAC is VREFP.
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7.19.1 Features
•
•
•
•
•
•
•
10-bit DAC.
Resistor string architecture.
Buffered output.
Power-down mode.
Selectable output drive.
Dedicated conversion timer.
DMA support.
7.20 UARTs
Remark: USART4 is not available on part LPC1774FBD144.
The LPC178x/7x contain five UARTs. In addition to standard transmit and receive data
lines, UART1 also provides a full modem control handshake interface and support for
RS-485/9-bit mode allowing both software address detection and automatic address
detection using 9-bit mode.
The UARTs include a fractional baud rate generator. Standard baud rates such as
115200 Bd can be achieved with any crystal frequency above 2 MHz.
7.20.1 Features
•
•
•
•
•
Maximum UART data bit rate of 7.5 MBit/s.
16 B Receive and Transmit FIFOs.
Register locations conform to 16C550 industry standard.
Receiver FIFO trigger points at 1 B, 4 B, 8 B, and 14 B.
Built-in fractional baud rate generator covering wide range of baud rates without a
need for external crystals of particular values.
• Auto-baud capability.
• Fractional divider for baud rate control, auto baud capabilities and FIFO control
mechanism that enables software flow control implementation.
• Support for RS-485/9-bit/EIA-485 mode and multiprocessor addressing.
• All UARTs have DMA support for both transmit and receive.
• UART1 equipped with standard modem interface signals. This module also provides
full support for hardware flow control (auto-CTS/RTS).
• USART4 includes an IrDA mode to support infrared communication.
• USART4 supports synchronous mode and a smart card mode conforming to
ISO7816-3.
7.21 SSP serial I/O controller
The LPC178x/7x contain three SSP controllers. The SSP controller is capable of
operation on a SPI, 4-wire SSI, or Microwire bus. It can interact with multiple masters and
slaves on the bus. Only a single master and a single slave can communicate on the bus
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during a given data transfer. The SSP supports full duplex transfers, with frames of 4 bits
to 16 bits of data flowing from the master to the slave and from the slave to the master. In
practice, often only one of these data flows carries meaningful data.
7.21.1 Features
• Maximum SSP speed of 33 Mbit/s (master) or 10 Mbit/s (slave).
• Compatible with Motorola SPI, 4-wire Texas Instruments SSI, and National
Semiconductor Microwire buses.
•
•
•
•
•
Synchronous serial communication.
Master or slave operation.
8-frame FIFOs for both transmit and receive.
4-bit to 16-bit frame.
DMA transfers supported by GPDMA.
7.22 I2C-bus serial I/O controllers
The LPC178x/7x contain three I2C-bus controllers.
The I2C-bus is bidirectional for inter-IC control using only two wires: a Serial Clock Line
(SCL) and a Serial Data Line (SDA). Each device is recognized by a unique address and
can operate as either a receiver-only device (e.g., an LCD driver) or a transmitter with the
capability to both receive and send information (such as memory). Transmitters and/or
receivers can operate in either master or slave mode, depending on whether the chip has
to initiate a data transfer or is only addressed. The I2C is a multi-master bus and can be
controlled by more than one bus master connected to it.
7.22.1 Features
• All I2C-bus controllers can use standard GPIO pins with bit rates of up to 400 kbit/s
(Fast I2C-bus). The I2C0-bus interface uses special open-drain pins with bit rates of
up to 400 kbit/s.
• The I2C-bus interface supports Fast-mode Plus with bit rates up to 1 Mbit/s for I2C0
using pins P5[2] and P5[3].
•
•
•
•
•
Easy to configure as master, slave, or master/slave.
Programmable clocks allow versatile rate control.
Bidirectional data transfer between masters and slaves.
Multi-master bus (no central master).
Arbitration between simultaneously transmitting masters without corruption of serial
data on the bus.
• Serial clock synchronization allows devices with different bit rates to communicate via
one serial bus.
• Serial clock synchronization can be used as a handshake mechanism to suspend and
resume serial transfer.
• The I2C-bus can be used for test and diagnostic purposes.
• Both I2C-bus controllers support multiple address recognition and a bus monitor
mode.
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7.23 I2S-bus serial I/O controllers
The LPC178x/7x contain one I2S-bus interface. The I2S-bus provides a standard
communication interface for digital audio applications.
The I2S-bus specification defines a 3-wire serial bus using one data line, one clock line,
and one word select signal. The basic I2S connection has one master, which is always the
master, and one slave. The I2S interface on the LPC178x/7x provides a separate transmit
and receive channel, each of which can operate as either a master or a slave.
7.23.1 Features
• The interface has separate input/output channels each of which can operate in master
or slave mode.
• Capable of handling 8-bit, 16-bit, and 32-bit word sizes.
• Mono and stereo audio data supported.
• The sampling frequency can range from 16 kHz to 48 kHz (16, 22.05, 32, 44.1,
48) kHz.
•
•
•
•
Configurable word select period in master mode (separately for I2S input and output).
Two 8 word FIFO data buffers are provided, one for transmit and one for receive.
Generates interrupt requests when buffer levels cross a programmable boundary.
Two DMA requests, controlled by programmable buffer levels. These are connected
to the GPDMA block.
• Controls include reset, stop and mute options separately for I2S input and I2S output.
7.24 CAN controller and acceptance filters
The LPC178x/7x contain one CAN controller with two channels.
The Controller Area Network (CAN) is a serial communications protocol which efficiently
supports distributed real-time control with a very high level of security. Its domain of
application ranges from high-speed networks to low cost multiplex wiring.
The CAN block is intended to support multiple CAN buses simultaneously, allowing the
device to be used as a gateway, switch, or router between two of CAN buses in industrial
or automotive applications.
Each CAN controller has a register structure similar to the NXP SJA1000 and the PeliCAN
Library block, but the 8-bit registers of those devices have been combined in 32-bit words
to allow simultaneous access in the ARM environment. The main operational difference is
that the recognition of received Identifiers, known in CAN terminology as Acceptance
Filtering, has been removed from the CAN controllers and centralized in a global
Acceptance Filter.
7.24.1 Features
•
•
•
•
LPC178X_7X
Product data sheet
Two CAN controllers and buses.
Data rates to 1 Mbit/s on each bus.
32-bit register and RAM access.
Compatible with CAN specification 2.0B, ISO 11898-1.
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• Global Acceptance Filter recognizes 11-bit and 29-bit receive identifiers for all CAN
buses.
• Acceptance Filter can provide FullCAN-style automatic reception for selected
Standard Identifiers.
• FullCAN messages can generate interrupts.
7.25 General purpose 32-bit timers/external event counters
The LPC178x/7x include four 32-bit timer/counters.
The timer/counter is designed to count cycles of the system derived clock or an
externally-supplied clock. It can optionally generate interrupts, generate timed DMA
requests, or perform other actions at specified timer values, based on four match
registers. Each timer/counter also includes two capture inputs to trap the timer value when
an input signal transitions, optionally generating an interrupt.
7.25.1 Features
• A 32-bit timer/counter with a programmable 32-bit prescaler.
• Counter or timer operation.
• Two 32-bit capture channels per timer, that can take a snapshot of the timer value
when an input signal transitions. A capture event may also generate an interrupt.
• Four 32-bit match registers that allow:
– Continuous operation with optional interrupt generation on match.
– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
• Up to four external outputs corresponding to match registers, with the following
capabilities:
– Set LOW on match.
– Set HIGH on match.
– Toggle on match.
– Do nothing on match.
• Up to two match registers can be used to generate timed DMA requests.
7.26 Pulse Width Modulator (PWM)
The LPC178x/7x contain two standard PWMs.
The PWM is based on the standard Timer block and inherits all of its features, although
only the PWM function is pinned out on the LPC178x/7x. The Timer is designed to count
cycles of the system derived clock and optionally switch pins, generate interrupts or
perform other actions when specified timer values occur, based on seven match registers.
The PWM function is in addition to these features, and is based on match register events.
The ability to separately control rising and falling edge locations allows the PWM to be
used for more applications. For instance, multi-phase motor control typically requires
three non-overlapping PWM outputs with individual control of all three pulse widths and
positions.
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Two match registers can be used to provide a single edge controlled PWM output. One
match register (PWMMR0) controls the PWM cycle rate, by resetting the count upon
match. The other match register controls the PWM edge position. Additional single edge
controlled PWM outputs require only one match register each, since the repetition rate is
the same for all PWM outputs. Multiple single edge controlled PWM outputs will all have a
rising edge at the beginning of each PWM cycle, when an PWMMR0 match occurs.
Three match registers can be used to provide a PWM output with both edges controlled.
Again, the PWMMR0 match register controls the PWM cycle rate. The other match
registers control the two PWM edge positions. Additional double edge controlled PWM
outputs require only two match registers each, since the repetition rate is the same for all
PWM outputs.
With double edge controlled PWM outputs, specific match registers control the rising and
falling edge of the output. This allows both positive going PWM pulses (when the rising
edge occurs prior to the falling edge), and negative going PWM pulses (when the falling
edge occurs prior to the rising edge).
7.26.1 Features
• LPC178x/7x has two PWM blocks with Counter or Timer operation (may use the
peripheral clock or one of the capture inputs as the clock source).
• Seven match registers allow up to 6 single edge controlled or 3 double edge
controlled PWM outputs, or a mix of both types. The match registers also allow:
– Continuous operation with optional interrupt generation on match.
– Stop timer on match with optional interrupt generation.
– Reset timer on match with optional interrupt generation.
• Supports single edge controlled and/or double edge controlled PWM outputs. Single
edge controlled PWM outputs all go high at the beginning of each cycle unless the
output is a constant low. Double edge controlled PWM outputs can have either edge
occur at any position within a cycle. This allows for both positive going and negative
going pulses.
• Pulse period and width can be any number of timer counts. This allows complete
flexibility in the trade-off between resolution and repetition rate. All PWM outputs will
occur at the same repetition rate.
• Double edge controlled PWM outputs can be programmed to be either positive going
or negative going pulses.
• Match register updates are synchronized with pulse outputs to prevent generation of
erroneous pulses. Software must ‘release’ new match values before they can become
effective.
• May be used as a standard 32-bit timer/counter with a programmable 32-bit prescaler
if the PWM mode is not enabled.
7.27 Motor control PWM
The LPC178x/7x contain one motor control PWM.
The motor control PWM is a specialized PWM supporting 3-phase motors and other
combinations. Feedback inputs are provided to automatically sense rotor position and use
that information to ramp speed up or down. An abort input is also provided that causes the
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PWM to immediately release all motor drive outputs. At the same time, the motor control
PWM is highly configurable for other generalized timing, counting, capture, and compare
applications.
The maximum PWM speed is determined by the PWM resolution (n) and the operating
frequency f: PWM speed = f/2n (see Table 8).
Table 8.
PWM speed at operating frequency 120 MHz
PWM resolution
PWM speed
6 bit
1.875 MHz
8 bit
0.468 MHz
10 bit
0.117 MHz
7.28 Quadrature Encoder Interface (QEI)
Remark: The QEI is available on parts LPC1788/87/86 and LPC1778/77/76
A quadrature encoder, also known as a 2-channel incremental encoder, converts angular
displacement into two pulse signals. By monitoring both the number of pulses and the
relative phase of the two signals, the user can track the position, direction of rotation, and
velocity. In addition, a third channel, or index signal, can be used to reset the position
counter. The quadrature encoder interface decodes the digital pulses from a quadrature
encoder wheel to integrate position over time and determine direction of rotation. In
addition, the QEI can capture the velocity of the encoder wheel.
7.28.1 Features
•
•
•
•
•
•
•
•
•
•
Tracks encoder position.
Increments/decrements depending on direction.
Programmable for 2 or 4 position counting.
Velocity capture using built-in timer.
Velocity compare function with “less than” interrupt.
Uses 32-bit registers for position and velocity.
Three position compare registers with interrupts.
Index counter for revolution counting.
Index compare register with interrupts.
Can combine index and position interrupts to produce an interrupt for whole and
partial revolution displacement.
• Digital filter with programmable delays for encoder input signals.
• Can accept decoded signal inputs (clk and direction).
• Connected to APB.
7.29 ARM Cortex-M3 system tick timer
The ARM Cortex-M3 includes a system tick timer (SYSTICK) that is intended to generate
a dedicated SYSTICK exception at a 10 ms interval. In the LPC178x/7x, this timer can be
clocked from the internal AHB clock or from a device pin.
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7.30 Windowed WatchDog Timer (WWDT)
The purpose of the watchdog is to reset the controller if software fails to periodically
service it within a programmable time window.
7.30.1 Features
• Internally resets chip if not periodically reloaded during the programmable time-out
period.
• Optional windowed operation requires reload to occur between a minimum and
maximum time period, both programmable.
• Optional warning interrupt can be generated at a programmable time prior to
watchdog time-out.
• Enabled by software but requires a hardware reset or a watchdog reset/interrupt to be
disabled.
•
•
•
•
Incorrect feed sequence causes reset or interrupt if enabled.
Flag to indicate watchdog reset.
Programmable 24-bit timer with internal prescaler.
Selectable time period from (Tcy(WDCLK) 256 4) to (Tcy(WDCLK) 224 4) in
multiples of Tcy(WDCLK) 4.
• The Watchdog Clock (WDCLK) source is a dedicated watchdog oscillator, which is
always running if the watchdog timer is enabled.
7.31 RTC and backup registers
The RTC is a set of counters for measuring time when system power is on, and optionally
when it is off. The RTC on the LPC178x/7x is designed to have very low power
consumption. The RTC will typically run from the main chip power supply conserving
battery power while the rest of the device is powered up. When operating from a battery,
the RTC will continue working down to 2.1 V. Battery power can be provided from a
standard 3 V lithium button cell.
An ultra-low power 32 kHz oscillator provides a 1 Hz clock to the time counting portion of
the RTC, moving most of the power consumption out of the time counting function.
The RTC includes a calibration mechanism to allow fine-tuning the count rate in a way
that will provide less than 1 second per day error when operated at a constant voltage and
temperature.
The RTC contains a small set of backup registers (20 bytes) for holding data while the
main part of the LPC178x/7x is powered off.
The RTC includes an alarm function that can wake up the LPC178x/7x from all reduced
power modes with a time resolution of 1 s.
7.31.1 Features
• Measures the passage of time to maintain a calendar and clock.
• Ultra low power design to support battery powered systems.
• Provides Seconds, Minutes, Hours, Day of Month, Month, Year, Day of Week, and
Day of Year.
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•
•
•
•
Dedicated power supply pin can be connected to a battery or to the main 3.3 V.
Periodic interrupts can be generated from increments of any field of the time registers.
Backup registers (20 bytes) powered by VBAT.
RTC power supply is isolated from the rest of the chip.
7.32 Event monitor/recorder
The event monitor/recorder allows recording of tampering events in sealed product
enclosures. Sensors report any attempt to open the enclosure, or to tamper with the
device in any other way. The event monitor/recorder stores records of such events when
the device is powered only by the backup battery.
7.32.1 Features
• Supports three digital event inputs in the VBAT power domain.
• An event is defined as a level change at the digital event inputs.
• For each event channel, two timestamps mark the first and the last occurrence of an
event. Each channel also has a dedicated counter tracking the total number of events.
Timestamp values are taken from the RTC.
• Runs in VBAT power domain, independent of system power supply. The
event/recorder/monitor can therefore operate in Deep power-down mode.
•
•
•
•
Very low power consumption.
Interrupt available if system is running.
A qualified event can be used as a wake-up trigger.
State of event interrupts accessible by software through GPIO.
7.33 Clocking and power control
7.33.1 Crystal oscillators
The LPC178x/7x include four independent oscillators. These are the main oscillator, the
IRC oscillator, the watchdog oscillator, and the RTC oscillator.
Following reset, the LPC178x/7x will operate from the Internal RC oscillator until switched
by software. This allows systems to operate without any external crystal and the boot
loader code to operate at a known frequency.
See Figure 7 for an overview of the LPC178x/7x clock generation.
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LPC178x/7x
IRC oscillator
MAIN PLL0
main oscillator
(osc_clk)
pll_clk
sysclk
CLKSRCSEL
(system clock select)
ALT PLL1
alt_pll_clk
sysclk
pll_clk
CCLKSEL
(CPU clock select)
CPU CLOCK
DIVIDER
cclk
EMC
CLOCK DIVIDER
emc_clk
Peripheral
CLOCK DIVIDER
pclk
sysclk
pll_clk
alt_pll_clk
USB
CLOCK DIVIDER
usb_clk
USBCLKSEL
(USB clock select)
002aaf531
Fig 7.
7.33.1.1
LPC178x/7x clock generation block diagram
Internal RC oscillator
The IRC may be used as the clock that drives the PLL and subsequently the CPU. The
nominal IRC frequency is 12 MHz. The IRC is trimmed to 1 % accuracy over the entire
voltage and temperature range.
Upon power-up or any chip reset, the LPC178x/7x use the IRC as the clock source.
Software may later switch to one of the other available clock sources.
7.33.1.2
Main oscillator
The main oscillator can be used as the clock source for the CPU, with or without using the
PLL. The main oscillator also provides the clock source for the alternate PLL1.
The main oscillator operates at frequencies of 1 MHz to 25 MHz. This frequency can be
boosted to a higher frequency, up to the maximum CPU operating frequency, by the main
PLL. The clock selected as the PLL input is PLLCLKIN. The ARM processor clock
frequency is referred to as CCLK elsewhere in this document. The frequencies of
PLLCLKIN and CCLK are the same value unless the PLL is active and connected. The
clock frequency for each peripheral can be selected individually and is referred to as
PCLK. Refer to Section 7.33.2 for additional information.
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7.33.1.3
RTC oscillator
The RTC oscillator provides a 1 Hz clock to the RTC and a 32 kHz clock output that can
be output on the CLKOUT pin in order to allow trimming the RTC oscillator without
interference from a probe.
7.33.1.4
Watchdog oscillator
The Watchdog Timer has a dedicated watchdog oscillator that provides a 500 kHz clock to
the Watchdog Timer. The watchdog oscillator is always running if the Watchdog Timer is
enabled. The Watchdog oscillator clock can be output on the CLKOUT pin in order to
allow observe its frequency.
In order to allow Watchdog Timer operation with minimum power consumption, which can
be important in reduced power modes, the Watchdog oscillator frequency is not tightly
controlled. The Watchdog oscillator frequency will vary over temperature and power
supply within a particular part, and may vary by processing across different parts. This
variation should be taken into account when determining Watchdog reload values.
Within a particular part, temperature and power supply variations can produce up to a
17 % frequency variation. Frequency variation between devices under the same
operating conditions can be up to 30 %.
7.33.2 Main PLL (PLL0) and Alternate PLL (PLL1)
PLL0 (also called the Main PLL) and PLL1 (also called the Alternate PLL) are functionally
identical but have somewhat different input possibilities and output connections. These
possibilities are shown in Figure 7. The Main PLL can receive its input from either the IRC
or the main oscillator and can potentially be used to provide the clocks to nearly
everything on the device. The Alternate PLL receives its input only from the main oscillator
and is intended to be used as an alternate source of clocking to the USB. The USB has
timing needs that may not always be filled by the Main PLL.
Both PLLs are disabled and powered off on reset. If the Alternate PLL is left disabled, the
USB clock can be supplied by PLL0 if everything is set up to provide 48 MHz to the USB
clock through that route. The source for each clock must be selected via the CLKSEL
registers and can be further reduced by clock dividers as needed.
PLL0 accepts an input clock frequency from either the IRC or the main oscillator. If only
the Main PLL is used, then its output frequency must be an integer multiple of all other
clocks needed in the system. PLL1 takes its input only from the main oscillator, requiring
an external crystal in the range of 10 to 25 MHz. In each PLL, the Current Controlled
Oscillator (CCO) operates in the range of 156 MHz to 320 MHz, so there are additional
dividers to bring the output down to the desired frequencies. The minimum output divider
value is 2, insuring that the output of the PLLs have a 50 % duty cycle.
If the USB is used, the possibilities for the CPU clock and other clocks will be limited by
the requirements that the frequency be precise and very low jitter, and that the PLL0
output must be a multiple of 48 MHz. Even multiples of 48 MHz that are within the
operating range of the PLL are 192 MHz and 288 MHz. Also, only the main oscillator in
conjunction with the PLL can meet the precision and jitter specifications for USB. It is due
to these limitations that the Alternate PLL is provided.
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The alternate PLL accepts an input clock frequency from the main oscillator in the range
of 10 MHz to 25 MHz only. When used as the USB clock, the input frequency is multiplied
up to a multiple of 48 MHz (192 MHz or 288 MHz as described above).
7.33.3 Wake-up timer
The LPC178x/7x begin operation at power-up and when awakened from Power-down
mode by using the 12 MHz IRC oscillator as the clock source. This allows chip operation
to resume quickly. If the main oscillator or the PLL is needed by the application, software
will need to enable these features and wait for them to stabilize before they are used as a
clock source.
When the main oscillator is initially activated, the wake-up timer allows software to ensure
that the main oscillator is fully functional before the processor uses it as a clock source
and starts to execute instructions. This is important at power on, all types of reset, and
whenever any of the aforementioned functions are turned off for any reason. Since the
oscillator and other functions are turned off during Power-down mode, any wake-up of the
processor from Power-down mode makes use of the wake-up Timer.
The wake-up timer monitors the crystal oscillator to check whether it is safe to begin code
execution. When power is applied to the chip, or when some event caused the chip to exit
Power-down mode, some time is required for the oscillator to produce a signal of sufficient
amplitude to drive the clock logic. The amount of time depends on many factors, including
the rate of VDD(3V3) ramp (in the case of power on), the type of crystal and its electrical
characteristics (if a quartz crystal is used), as well as any other external circuitry (e.g.,
capacitors), and the characteristics of the oscillator itself under the existing ambient
conditions.
7.33.4 Power control
The LPC178x/7x support a variety of power control features. There are four special
modes of processor power reduction: Sleep mode, Deep-sleep mode, Power-down mode,
and Deep power-down mode. The CPU clock rate may also be controlled as needed by
changing clock sources, reconfiguring PLL values, and/or altering the CPU clock divider
value. This allows a trade-off of power versus processing speed based on application
requirements. In addition, the peripheral power control allows shutting down the clocks to
individual on-chip peripherals, allowing fine tuning of power consumption by eliminating all
dynamic power use in any peripherals that are not required for the application. Each of the
peripherals has its own clock divider which provides even better power control.
The integrated PMU (Power Management Unit) automatically adjusts internal regulators
to minimize power consumption during Sleep, Deep-sleep, Power-down, and Deep
power-down modes.
The LPC178x/7x also implement a separate power domain to allow turning off power to
the bulk of the device while maintaining operation of the RTC and a small set of registers
for storing data during any of the power-down modes.
7.33.4.1
Sleep mode
When Sleep mode is entered, the clock to the core is stopped. Resumption from the Sleep
mode does not need any special sequence other than re-enabling the clock to the ARM
core.
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In Sleep mode, execution of instructions is suspended until either a Reset or interrupt
occurs. Peripheral functions continue operation during Sleep mode and may generate
interrupts to cause the processor to resume execution. Sleep mode eliminates dynamic
power used by the processor itself, memory systems and related controllers, and internal
buses.
The DMA controller can continue to work in Sleep mode and has access to the peripheral
RAMs and all peripheral registers. The flash memory and the main SRAM are not
available in Sleep mode, they are disabled in order to save power.
Wake-up from Sleep mode will occur whenever any enabled interrupt occurs.
7.33.4.2
Deep-sleep mode
In Deep-sleep mode, the oscillator is shut down and the chip receives no internal clocks.
The processor state and registers, peripheral registers, and internal SRAM values are
preserved throughout Deep-sleep mode and the logic levels of chip pins remain static.
The output of the IRC is disabled but the IRC is not powered down to allow fast wake-up.
The RTC oscillator is not stopped because the RTC interrupts may be used as the
wake-up source. The PLL is automatically turned off and disconnected. The clock divider
registers are automatically reset to zero.
The Deep-sleep mode can be terminated and normal operation resumed by either a
Reset or certain specific interrupts that are able to function without clocks. Since all
dynamic operation of the chip is suspended, Deep-sleep mode reduces chip power
consumption to a very low value. Power to the flash memory is left on in Deep-sleep
mode, allowing a very quick wake-up.
Wake-up from Deep-sleep mode can initiated by the NMI, External Interrupts EINT0
through EINT3, GPIO interrupts, the Ethernet Wake-on-LAN interrupt, Brownout Detect,
an RTC Alarm interrupt, a USB input pin transition (USB activity interrupt), a CAN input
pin transition, or a Watchdog Timer time-out, when the related interrupt is enabled.
Wake-up will occur whenever any enabled interrupt occurs.
On wake-up from Deep-sleep mode, the code execution and peripherals activities will
resume after four cycles expire if the IRC was used before entering Deep-sleep mode. If
the main external oscillator was used, the code execution will resume when 4096 cycles
expire. PLL and clock dividers need to be reconfigured accordingly.
7.33.4.3
Power-down mode
Power-down mode does everything that Deep-sleep mode does but also turns off the
power to the IRC oscillator and the flash memory. This saves more power but requires
waiting for resumption of flash operation before execution of code or data access in the
flash memory can be accomplished.
When the chip enters Power-down mode, the IRC, the main oscillator, and all clocks are
stopped. The RTC remains running if it has been enabled and RTC interrupts may be
used to wake up the CPU. The flash is forced into Power-down mode. The PLLs are
automatically turned off and the clock selection multiplexers are set to use the system
clock sysclk (the reset state). The clock divider control registers are automatically reset to
zero. If the Watchdog timer is running, it will continue running in Power-down mode.
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On the wake-up of Power-down mode, if the IRC was used before entering Power-down
mode, it will take IRC 60 s to start-up. After this, four IRC cycles will expire before the
code execution can then be resumed if the code was running from SRAM. In the
meantime, the flash wake-up timer then counts 12 MHz IRC clock cycles to make the
100 s flash start-up time. When it times out, access to the flash will be allowed. Users
need to reconfigure the PLL and clock dividers accordingly.
7.33.4.4
Deep power-down mode
In Deep power-down mode, power is shut off to the entire chip with the exception of the
RTC module and the RESET pin.
To optimize power conservation, the user has the additional option of turning off or
retaining power to the 32 kHz oscillator. It is also possible to use external circuitry to turn
off power to the on-chip regulator via the VDD(REG)(3V3) pins and/or the I/O power via the
VDD(3V3) pins after entering Deep Power-down mode. Power must be restored before
device operation can be restarted.
The LPC178x/7x can wake up from Deep power-down mode via the RESET pin or an
alarm match event of the RTC.
7.33.4.5
Wake-up Interrupt Controller (WIC)
The WIC allows the CPU to automatically wake up from any enabled priority interrupt that
can occur while the clocks are stopped in Deep-sleep, Power-down, and Deep
power-down modes.
The WIC works in connection with the Nested Vectored Interrupt Controller (NVIC). When
the CPU enters Deep-sleep, Power-down, or Deep power-down mode, the NVIC sends a
mask of the current interrupt situation to the WIC.This mask includes all of the interrupts
that are both enabled and of sufficient priority to be serviced immediately. With this
information, the WIC simply notices when one of the interrupts has occurred and then it
wakes up the CPU.
The WIC eliminates the need to periodically wake up the CPU and poll the interrupts
resulting in additional power savings.
7.33.5 Peripheral power control
A power control for peripherals feature allows individual peripherals to be turned off if they
are not needed in the application, resulting in additional power savings.
7.33.6 Power domains
The LPC178x/7x provide two independent power domains that allow the bulk of the
device to have power removed while maintaining operation of the RTC and the backup
registers.
On the LPC178x/7x, I/O pads are powered by VDD(3V3), while VDD(REG)(3V3) powers the
on-chip voltage regulator which in turn provides power to the CPU and most of the
peripherals.
Depending on the LPC178x/7x application, a design can use two power options to
manage power consumption.
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The first option assumes that power consumption is not a concern and the design ties the
VDD(3V3) and VDD(REG)(3V3) pins together. This approach requires only one 3.3 V power
supply for both pads, the CPU, and peripherals. While this solution is simple, it does not
support powering down the I/O pad ring “on the fly” while keeping the CPU and
peripherals alive.
The second option uses two power supplies; a 3.3 V supply for the I/O pads (VDD(3V3)) and
a dedicated 3.3 V supply for the CPU (VDD(REG)(3V3)). Having the on-chip voltage regulator
powered independently from the I/O pad ring enables shutting down of the I/O pad power
supply “on the fly” while the CPU and peripherals stay active.
The VBAT pin supplies power only to the RTC domain. The RTC operates at very low
power, which can be supplied by an external battery. The device core power
(VDD(REG)(3V3)) is used to operate the RTC whenever VDD(REG)(3V3) is present. There is no
power drain from the RTC battery when VDD(REG)(3V3) is at nominal levels and
VDD(REG)(3V3) > VBAT.
LPC178x/7x
to I/O pads
VDD(3V3)
to core
VSS
REGULATOR
VDD(REG)(3V3)
(typical 3.3 V)
to memories,
peripherals,
oscillators,
PLLs
MAIN POWER DOMAIN
POWER
SELECTOR
VBAT
(typical 3.0 V)
ULTRA-LOW
POWER
REGULATOR
BACKUP REGISTERS
RTCX1
32 kHz
OSCILLATOR
RTCX2
REAL-TIME CLOCK
RTC POWER DOMAIN
DAC
VDDA
VREFP
ADC
VSSA
ADC POWER DOMAIN
002aaf530
Fig 8.
LPC178X_7X
Product data sheet
Power distribution
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32-bit ARM Cortex-M3 microcontroller
7.34 System control
7.34.1 Reset
Reset has four sources on the LPC178x/7x: the RESET pin, the Watchdog reset,
Power-On Reset (POR), and the BrownOut Detection (BOD) circuit. The RESET pin is a
Schmitt trigger input pin. Assertion of chip Reset by any source, once the operating
voltage attains a usable level, starts the Wake-up timer (see description in
Section 7.33.3), causing reset to remain asserted until the external Reset is de-asserted,
the oscillator is running, a fixed number of clocks have passed, and the flash controller
has completed its initialization.
When the internal Reset is removed, the processor begins executing at address 0, which
is initially the Reset vector mapped from the boot block. At that point, all of the processor
and peripheral registers have been initialized to predetermined values.
7.34.2 Brownout detection
The LPC178x/7x include 2-stage monitoring of the voltage on the VDD(REG)(3V3) pins. If this
voltage falls below 2.2 V (typical), the BOD asserts an interrupt signal to the Vectored
Interrupt Controller. This signal can be enabled for interrupt in the Interrupt Enable
Register in the NVIC in order to cause a CPU interrupt; if not, software can monitor the
signal by reading a dedicated status register.
The second stage of low-voltage detection asserts a reset to inactivate the LPC178x/7x
when the voltage on the VDD(REG)(3V3) pins falls below 1.85 V (typical). This reset prevents
alteration of the flash as operation of the various elements of the chip would otherwise
become unreliable due to low voltage. The BOD circuit maintains this reset down below
1 V, at which point the power-on reset circuitry maintains the overall reset.
Both the 2.2 V and 1.85 V thresholds include some hysteresis. In normal operation, this
hysteresis allows the 2.2 V detection to reliably interrupt, or a regularly executed event
loop to sense the condition.
7.34.3 Code security (Code Read Protection - CRP)
This feature of the LPC178x/7x allows user to enable different levels of security in the
system so that access to the on-chip flash and use of the JTAG and ISP can be restricted.
When needed, CRP is invoked by programming a specific pattern into a dedicated flash
location. IAP commands are not affected by the CRP.
There are three levels of the Code Read Protection.
CRP1 disables access to chip via the JTAG and allows partial flash update (excluding
flash sector 0) using a limited set of the ISP commands. This mode is useful when CRP is
required and flash field updates are needed but all sectors can not be erased.
CRP2 disables access to chip via the JTAG and only allows full flash erase and update
using a reduced set of the ISP commands.
Running an application with level CRP3 selected fully disables any access to chip via the
JTAG pins and the ISP. This mode effectively disables ISP override using P2[10] pin, too.
It is up to the user’s application to provide (if needed) flash update mechanism using IAP
calls or call reinvoke ISP command to enable flash update via UART0.
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32-bit ARM Cortex-M3 microcontroller
CAUTION
If level three Code Read Protection (CRP3) is selected, no future factory testing can be
performed on the device.
7.34.4 APB interface
The APB peripherals are split into two separate APB buses in order to distribute the bus
bandwidth and thereby reducing stalls caused by contention between the CPU and the
GPDMA controller.
7.34.5 AHB multilayer matrix
The LPC178x/7x use an AHB multilayer matrix. This matrix connects the instruction
(I-code) and data (D-code) CPU buses of the ARM Cortex-M3 to the flash memory, the
main (64 kB) SRAM, and the Boot ROM. The GPDMA can also access all of these
memories. Additionally, the matrix connects the CPU system bus and all of the DMA
controllers to the various peripheral functions.
7.34.6 External interrupt inputs
The LPC178x/7x include up to 30 edge sensitive interrupt inputs combined with one level
sensitive external interrupt input as selectable pin function. The external interrupt input
can optionally be used to wake up the processor from Power-down mode.
7.34.7 Memory mapping control
The Cortex-M3 incorporates a mechanism that allows remapping the interrupt vector table
to alternate locations in the memory map. This is controlled via the Vector Table Offset
Register contained in the NVIC.
The vector table may be located anywhere within the bottom 1 GB of Cortex-M3 address
space. The vector table must be located on a 128 word (512 byte) boundary because the
NVIC on the LPC178x/7x is configured for 128 total interrupts.
7.35 Debug control
Debug and trace functions are integrated into the ARM Cortex-M3. Serial wire debug and
trace functions are supported in addition to a standard JTAG debug and parallel trace
functions. The ARM Cortex-M3 is configured to support up to eight breakpoints and four
watch points.
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32-bit ARM Cortex-M3 microcontroller
8. Limiting values
Table 9.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).[1]
Symbol
Parameter
Conditions
Min
Max
Unit
VDD(3V3)
supply voltage (3.3 V)
external rail
2.4
3.6
V
VDD(REG)(3V3)
regulator supply voltage (3.3 V)
2.4
3.6
V
VDDA
analog 3.3 V pad supply voltage
0.5
+4.6
V
Vi(VBAT)
input voltage on pin VBAT
0.5
+4.6
V
Vi(VREFP)
input voltage on pin VREFP
0.5
+4.6
V
VIA
analog input voltage
on ADC related
pins
0.5
+5.1
V
VI
input voltage
5 V tolerant digital
I/O pins;
0.5
+5.5
V
0.5
+3.6
V
0.5
VDD(3V3) +
0.5
V
for the RTC
[2]
VDD(3V3) 2.4V
VDD(3V3) 0 V
other I/O pins
[2][3]
IDD
supply current
per supply pin
-
100
mA
ISS
ground current
per ground pin
-
100
mA
Ilatch
I/O latch-up current
(0.5VDD(3V3)) < VI
< (1.5VDD(3V3));
-
100
mA
65
+150
C
-
1.5
W
-
4000
V
Tj < 125 C
Tstg
storage temperature
non-operating
Ptot(pack)
total power dissipation (per package)
based on package
heat transfer, not
device power
consumption
VESD
electrostatic discharge voltage
human body
model; all pins
[1]
[4]
[5]
The following applies to the limiting values:
a) This product includes circuitry specifically designed for the protection of its internal devices from the damaging effects of excessive
static charge. Nonetheless, it is suggested that conventional precautions be taken to avoid applying greater than the rated
maximum.
b) Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless
otherwise noted.
[2]
Including voltage on outputs in 3-state mode.
[3]
Not to exceed 4.6 V.
[4]
The maximum non-operating storage temperature is different than the temperature for required shelf life which should be determined
based on the required shelf lifetime. Please refer to the JEDEC spec for further details.
[5]
Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor.
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32-bit ARM Cortex-M3 microcontroller
9. Thermal characteristics
The average chip junction temperature, Tj (C), can be calculated using the following
equation:
T j = T amb + P D R th j – a
(1)
• Tamb = ambient temperature (C),
• Rth(j-a) = the package junction-to-ambient thermal resistance (C/W)
• PD = sum of internal and I/O power dissipation
Table 10. Thermal characteristics
VDD = 3.0 V to 3.6 V; Tamb = 40 C to +85 C unless otherwise specified;
Symbol
Parameter
Min
Typ
Max
Unit
Tj(max)
maximum junction
temperature
-
-
125
C
Table 11. Thermal resistance (LQFP packages)
Tamb = 40 C to +85 C unless otherwise specified.
Symbol
ja
Conditions
Thermal resistance in C/W ±15 %
LQFP208
LQFP144
0 m/s
27.4
31.5
1 m/s
25.7
28.1
2.5 m/s
24.4
26.2
0 m/s
35.4
43.2
1 m/s
31.2
35.7
2.5 m/s
29.2
32.8
JEDEC (4.5 in 4 in)
Single-layer (4.5 in 3 in)
jc
-
8.8
7.8
jb
-
15.4
13.8
Table 12. Thermal resistance value (TFBGA packages)
Tamb = 40 C to +85 C unless otherwise specified.
Symbol
ja
Conditions
Thermal resistance in C/W ±15 %
TFBGA208
TFBGA180
41
45.5
JEDEC (4.5 in 4 in)
0 m/s
1 m/s
35
38.3
2.5 m/s
31
33.8
34.9
38
8-layer (4.5 in 3 in)
0 m/s
LPC178X_7X
Product data sheet
1 m/s
30.9
33.5
2.5 m/s
28
29.8
jc
-
8.3
8.9
jb
-
13.6
12
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10. Static characteristics
Table 13. Static characteristics
Tamb = 40 C to +85 C, unless otherwise specified.
Min
Typ[1]
Max
Unit
2.4
3.3
3.6
V
2.4
3.3
3.6
V
[3]
2.7
3.3
3.6
V
input voltage on pin
VBAT
[4]
2.1
3.0
3.6
V
Vi(VREFP)
input voltage on pin
VREFP
[3]
2.7
3.3
VDDA
V
IDD(REG)(3V3)
regulator supply current active mode; code
(3.3 V)
while(1){}
Symbol
Parameter
Conditions
VDD(3V3)
supply voltage (3.3 V)
external rail
VDD(REG)(3V3)
regulator supply voltage
(3.3 V)
VDDA
analog 3.3 V pad supply
voltage
Vi(VBAT)
Supply pins
[2]
executed from flash; all
peripherals disabled
PCLK = CCLK/4
CCLK = 12 MHz; PLL
disabled
[5][6]
-
7
-
mA
CCLK = 120 MHz; PLL
enabled
[5][7]
-
51
-
mA
active mode; code
while(1){}
executed from flash; all
peripherals enabled;
PCLK = CCLK/4
IBAT
battery supply current
CCLK = 12 MHz; PLL
disabled
[5][6]
14
CCLK = 120 MHz; PLL
enabled
[5][7]
100
mA
Sleep mode
[5][8]
-
5
-
mA
Deep-sleep mode
[5][9]
-
550
-
A
Power-down mode
[5][9]
-
280
-
A
[10]
-
1
-
A
RTC running;
part powered down;
VDD(REG)(3V3) =0 V;
Vi(VBAT) = 3.0 V;
VDD(3V3) = 0 V.
part powered;
VDD(REG)(3V3) = 3.3 V;
Vi(VBAT) = 3.0 V
LPC178X_7X
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