NUC100/120xxxDN
ARM® Cortex® -M
32-bit Microcontroller
NuMicro® NUC100 Series
NUC100/120xxxDN
Datasheet
Nuvoton is providing this document only for reference purposes of NuMicro® microcontroller based
system design. Nuvoton assumes no responsibility for errors or omissions.
All data and specifications are subject to change without notice.
For additional information or questions, please contact: Nuvoton Technology Corporation.
www.nuvoton.com
Apr. 8, 2020
Page 1 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
The information described in this document is the exclusive intellectual property of
Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton.
NUC100/120xxxDN
Table of Contents
1
GENERAL DESCRIPTION .............................................................. 8
2
FEATURES ................................................................................ 9
2.1
NuMicro® NUC100 Features – Advanced Line........................................... 9
2.2
NuMicro® NUC120 Features – USB Line ................................................13
3
ABBREVIATIONS ....................................................................... 17
4
PARTS INFORMATION LIST AND PIN CONFIGURATION ..................... 19
NuMicro® NUC100/120xxxDN Selection Guide .........................................19
4.1
4.1.1
NuMicro NUC100 Advanced Line Selection Guide .......................................... 19
4.1.2
NuMicro NUC120 USB Line Selection Guide ................................................. 19
®
®
Pin Configuration.............................................................................21
4.2
4.2.1
NuMicro NUC100 Pin Diagram .................................................................. 21
4.2.2
NuMicro NUC120 Pin Diagram .................................................................. 24
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®
Pin Description ...............................................................................27
4.3
4.3.1
NuMicro NUC100 Pin Description .............................................................. 27
4.3.2
NuMicro NUC120 Pin Description .............................................................. 35
®
®
BLOCK DIAGRAM ...................................................................... 43
5
5.1
NuMicro® NUC100 Block Diagram ........................................................43
5.2
NuMicro® NUC120 Block Diagram ........................................................44
NUC100/120XXXDN DATASHEET
FUNCTIONAL DESCRIPTION ........................................................ 45
6
6.1
ARM® Cortex® -M0 Core.....................................................................45
6.2
System Manager .............................................................................47
6.2.1
Overview ............................................................................................. 47
6.2.2
System Reset........................................................................................ 47
6.2.3
Power Modes and Wake-up Sources ............................................................ 53
6.2.4
System Power Distribution ........................................................................ 55
6.2.5
System Memory Map ............................................................................... 58
6.2.6
System Timer (SysTick) ........................................................................... 60
6.2.7
Nested Vectored Interrupt Controller (NVIC) ................................................... 61
6.3
Clock Controller ..............................................................................62
6.3.1
Overview ............................................................................................. 62
6.3.2
Clock Generator ..................................................................................... 64
6.3.3
System Clock and SysTick Clock ................................................................ 65
6.3.4
Peripherals Clock ................................................................................... 66
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6.3.5
Power-down Mode Clock .......................................................................... 66
6.3.6
Frequency Divider Output ......................................................................... 66
6.4
FLASH MEMORY CONTROLLER (FMC) ...............................................68
6.4.1
Overview ............................................................................................. 68
6.4.2
Features .............................................................................................. 68
6.5
External Bus Interface (EBI) ...............................................................69
6.5.1
Overview ............................................................................................. 69
6.5.2
Features .............................................................................................. 69
6.6
General Purpose I/O (GPIO) ...............................................................70
6.6.1
Overview ............................................................................................. 70
6.6.2
Features .............................................................................................. 70
6.7
PDMA Controller (PDMA) ..................................................................71
6.7.1
Overview ............................................................................................. 71
6.7.2
Features .............................................................................................. 71
6.8
Timer Controller (TMR) .....................................................................72
6.8.1
Overview ............................................................................................. 72
6.8.2
Features .............................................................................................. 72
6.9
PWM Generator and Capture Timer (PWM) ............................................73
6.9.1
Overview ............................................................................................. 73
6.9.2
Features .............................................................................................. 74
Watchdog Timer (WDT).....................................................................75
6.10.1
Overview .......................................................................................... 75
6.10.2
Features ........................................................................................... 75
6.11
Window Watchdog Timer (WWDT) .......................................................76
6.11.1
Overview .......................................................................................... 76
6.11.2
Features ........................................................................................... 76
6.13
Real Time Clock (RTC) .....................................................................77
6.13.1
Overview .......................................................................................... 77
6.13.2
Features ........................................................................................... 77
6.14
UART Interface Controller (UART) ........................................................78
6.14.1
Overview .......................................................................................... 78
6.14.2
Features ........................................................................................... 80
6.15
Smart Card Host Interface (SC) ...........................................................82
6.15.1
Overview .......................................................................................... 82
6.15.2
Features ........................................................................................... 82
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6.10
NUC100/120xxxDN
6.16
PS/2 Device Controller (PS2D) ............................................................83
6.16.1
Overview .......................................................................................... 83
6.16.2
Features ........................................................................................... 83
6.17
I2C Serial Interface Controller (I2C) .......................................................84
6.17.1
Overview .......................................................................................... 84
6.17.2
Features ........................................................................................... 85
6.18
Serial Peripheral Interface (SPI) ...........................................................86
Overview .......................................................................................... 86
6.18.1
Features ........................................................................................... 86
6.18.2
6.19
I S Controller (I2S) ...........................................................................87
2
6.19.1
Overview .......................................................................................... 87
6.19.2
Features ........................................................................................... 87
6.20
USB Device Controller (USB) ..............................................................88
6.20.1
Overview .......................................................................................... 88
6.20.2
Features ........................................................................................... 88
6.21
Analog-to-Digital Converter (ADC) ........................................................89
6.21.1
Overview .......................................................................................... 89
6.21.2
Features ........................................................................................... 89
6.22
Analog Comparator (ACMP) ...............................................................90
NUC100/120XXXDN DATASHEET
6.22.1
Overview .......................................................................................... 90
6.22.2
Features ........................................................................................... 90
7
APPLICATION CIRCUIT ............................................................... 91
8
ELECTRICAL CHARACTERISTICS ................................................. 92
8.1
Absolute Maximum Ratings ................................................................92
8.2
DC Electrical Characteristics ...............................................................93
8.3
AC Electrical Characteristics ...............................................................97
8.3.1
External 4~24 MHz High Speed Oscillator ..................................................... 97
8.3.2
External 4~24 MHz High Speed Crystal ........................................................ 97
8.3.3
External 32.768 kHz Low Speed Crystal Oscillator ........................................... 98
8.3.4
Internal 22.1184 MHz High Speed Oscillator ................................................... 98
8.3.5
Internal 10 kHz Low Speed Oscillator ........................................................... 98
8.4
Analog Characteristics ......................................................................99
8.4.1
12-bit SARADC Specification ..................................................................... 99
8.4.2
LDO and Power Management Specification.................................................... 99
8.4.3
Low Voltage Reset Specification ............................................................... 100
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8.4.4
Brown-out Detector Specification .............................................................. 100
8.4.5
Power-on Reset Specification .................................................................. 100
8.4.6
Temperature Sensor Specification ............................................................. 101
8.4.7
Comparator Specification ........................................................................ 101
8.4.8
USB PHY Specification .......................................................................... 102
8.5
Flash DC Electrical Characteristics ..................................................... 104
PACKAGE DIMENSIONS ............................................................105
9
9.1
100-pin LQFP (14x14x1.4 mm footprint 2.0 mm) ..................................... 105
9.2
64-pin LQFP (10x10x1.4 mm footprint 2.0 mm) ...................................... 106
9.3
48-pin LQFP (7x7x1.4 mm footprint 2.0 mm) ......................................... 107
10
REVISION HISTORY ..................................................................108
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List of Figures
®
Figure 4-1 NuMicro NUC100 Series Selection Code ................................................................... 20
®
Figure 4-2 NuMicro NUC100VxxDN LQFP 100-pin Diagram ...................................................... 21
®
Figure 4-3 NuMicro NUC100RxxDN LQFP 64-pin Diagram ........................................................ 22
®
Figure 4-4 NuMicro NUC100LxxDN LQFP 48-pin Diagram ......................................................... 23
®
Figure 4-5 NuMicro NUC120VxxDN LQFP 100-pin Diagram ...................................................... 24
®
Figure 4-6 NuMicro NUC120RxxDN LQFP 64-pin Diagram ........................................................ 25
®
Figure 4-7 NuMicro NUC120LxxDN LQFP 48-pin Diagram ......................................................... 26
®
Figure 5-1 NuMicro NUC100 Block Diagram ............................................................................... 43
®
Figure 5-2 NuMicro NUC120 Block Diagram ............................................................................... 44
Figure 6-1 Functional Controller Diagram ...................................................................................... 45
Figure 6-2 System Reset Resources ............................................................................................. 48
Figure 6-3 nRESET Reset Waveform ............................................................................................ 50
Figure 6-4 Power-on Reset (POR) Waveform ............................................................................... 50
Figure 6-5 Low Voltage Reset (LVR) Waveform ............................................................................ 51
Figure 6-6 Brown-Out Detector (BOD) Waveform ......................................................................... 52
Figure 6-7 Power Mode State Machine ......................................................................................... 53
®
Figure 6-8 NuMicro NUC100 Power Distribution Diagram ........................................................... 56
®
Figure 6-9 NuMicro NUC120 Power Distribution Diagram ........................................................... 57
Figure 6-10 Clock Generator Global View Diagram ....................................................................... 63
Figure 6-11 Clock Generator Block Diagram ................................................................................. 64
NUC100/120XXXDN DATASHEET
Figure 6-12 System Clock Block Diagram ..................................................................................... 65
Figure 6-13 SysTick Clock Control Block Diagram ........................................................................ 65
Figure 6-14 Clock Source of Frequency Divider ............................................................................ 66
Figure 6-15 Frequency Divider Block Diagram .............................................................................. 67
Figure 6-16 UART nRTS Auto-Flow Control Trigger Level ............................................................ 79
2
Figure 6-17 I C Bus Timing ............................................................................................................ 84
Figure 8-1 Typical Crystal Application Circuit ................................................................................ 98
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List of Tables
®
Table 1-1 NuMicro NUC100 Series Connectivity Support Table ................................................... 8
Table 3-1 List of Abbreviations ....................................................................................................... 18
Table 6-1 Reset Value of Registers ............................................................................................... 49
Table 6-2 Power Mode Difference Table ....................................................................................... 53
Table 6-3 Clocks in Power Modes ................................................................................................. 54
Table 6-4 Condition of Entering Power-down Mode Again ............................................................ 55
Table 6-5 Address Space Assignments for On-Chip Controllers ................................................... 59
Table 6-6 UART Baud Rate Equation ............................................................................................ 78
Table 6-7 UART Baud Rate Setting Table ..................................................................................... 79
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1
GENERAL DESCRIPTION
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®
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The NuMicro NUC100 series 32-bit microcontroller (MCU) is embedded with the ARM Cortex M0 core with the cost equivalent to traditional 8-bit MCU. The NUC100 series can be used in
consumer electronics, industrial control and applications which requiring rich communication
interfaces such as industrial automation, alarm system, energy system and power system.
®
®
The NuMicro NUC100 Advanced Line and NUC120 USB Line are embedded with the Cortex M0 core running up to 50 MHz and features 32/64/128 Kbytes Flash, 4/8/16 Kbytes embedded
SRAM and 4 Kbytes loader ROM for the ISP. It operates at a wide voltage range of 2.5V ~ 5.5V
and temperature range of -40℃ ~ +85℃. The NUC100 series is also provided with plenty of
peripheral devices, such as Timers, Watchdog Timer, Window Watchdog Timer, RTC, PDMA with
2
2
CRC calculation unit, UART, SPI, I C, I S, PWM Timer, GPIO, PS/2, EBI, Smart Card Host, 12-bit
ADC, Analog Comparator, Low Voltage Reset Controller and Brown-out Detector. Additionally,
the NUC120 USB Line is equipped with a USB 2.0 Full-speed Device. These peripherals have
been incorporated into the NUC100 series to reduce component count, board space and system
cost.
The NUC100 series is equipped with ISP (In-System Programming), IAP (In-ApplicationProgramming) and ICP (In-Circuit Programming) functions, which allows the user to update the
program under software control through the on-chip connectivity interface, such as SWD, UART
and USB.
Product Line
UART
SPI
I2C
USB
PS/2
I2S
SC
NUC100xxxDN
3
4
2
-
1
1
3
NUC120xxxDN
3
4
2
1
1
1
3
®
Table 1-1 NuMicro NUC100 Series Connectivity Support Table
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2
FEATURES
The equipped features are dependent on the product line and their sub products.
2.1 NuMicro® NUC100 Features – Advanced Line
®
®
ARM Cortex -M0 core
– Runs up to 50 MHz
– One 24-bit system timer
– Supports low power sleep mode
– Single-cycle 32-bit hardware multiplier
– NVIC for the 32 interrupt inputs, each with 4-levels of priority
– Serial Wire Debug supports with 2 watchpoints/4 breakpoints
Built-in LDO for wide operating voltage ranged from 2.5 V to 5.5 V
Flash Memory
–
–
–
32/64/128 Kbytes Flash for program code
4 KB flash for ISP loader
Supports In-System-Program (ISP) and In-Application-Program (IAP) application code
update
– 512 byte page erase for flash
– Configurable Data Flash address and size for 128 KB system, fixed 4 KB Data Flash
for the 32 KB and 64 KB system
– Supports 2-wired ICP update through SWD/ICE interface
– Supports fast parallel programming mode by external programmer
SRAM Memory
– 4/8/16 Kbytes embedded SRAM
– Supports PDMA mode
PDMA (Peripheral DMA)
–
–
–
Flexible selection for different applications
Built-in 22.1184 MHz high speed oscillator for system operation
Trimmed to ±1 % at +25 ℃ and VDD = 5 V
Trimmed to ±3 % at -40 ℃ ~ +85 ℃ and VDD = 2.5 V ~ 5.5 V
– Built-in 10 kHz low speed oscillator for Watchdog Timer and Wake-up operation
– Supports one PLL, up to 50 MHz, for high performance system operation
– External 4~24 MHz high speed crystal input for precise timing operation
– External 32.768 kHz low speed crystal input for RTC function and low power system
operation
GPIO
–
Four I/O modes:
Quasi-bidirectional
Push-pull output
Open-drain output
Input only with high impendence
– TTL/Schmitt trigger input selectable
– I/O pin configured as interrupt source with edge/level setting
Timer
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Supports 9 channels PDMA for automatic data transfer between SRAM and
peripherals
– Supports CRC calculation with four common polynomials, CRC-CCITT, CRC-8, CRC16 and CRC-32
Clock Control
NUC100/120xxxDN
– Supports 4 sets of 32-bit timers with 24-bit up-timer and one 8-bit prescale counter
– Independent clock source for each timer
– Provides one-shot, periodic, toggle and continuous counting operation modes
– Supports event counting function
– Supports input capture function
Watchdog Timer
– Multiple clock sources
– 8 selectable time-out period from 1.6 ms ~ 26.0 sec (depending on clock source)
– Wake-up from Power-down or Idle mode
– Interrupt or reset selectable on watchdog time-out
Window Watchdog Timer
– 6-bit down counter with 11-bit prescale for wide range window selected
RTC
–
–
–
–
–
–
Supports software compensation by setting frequency compensate register (FCR)
Supports RTC counter (second, minute, hour) and calendar counter (day, month, year)
Supports Alarm registers (second, minute, hour, day, month, year)
Selectable 12-hour or 24-hour mode
Automatic leap year recognition
Supports periodic time tick interrupt with 8 period options 1/128, 1/64, 1/32, 1/16, 1/8,
1/4, 1/2 and 1 second
– Supports wake-up function
PWM/Capture
–
NUC100/120XXXDN DATASHEET
Up to four built-in 16-bit PWM generators providing eight PWM outputs or four
complementary paired PWM outputs
– Each PWM generator equipped with one clock source selector, one clock divider, one
8-bit prescaler and one Dead-Zone generator for complementary paired PWM
– Up to eight 16-bit digital capture timers (shared with PWM timers) providing eight
rising/falling capture inputs
– Supports Capture interrupt
UART
–
–
–
–
–
–
–
–
SPI
–
–
–
–
–
–
–
–
–
–
Apr. 8, 2020
Up to three UART controllers
UART ports with flow control (TXD, RXD, CTS and RTS)
UART0 with 64-byte FIFO is for high speed
UART1/2(optional) with 16-byte FIFO for standard device
Supports IrDA (SIR) and LIN function
Supports RS-485 9-bit mode and direction control
Programmable baud-rate generator up to 1/16 system clock
Supports PDMA mode
Up to four sets of SPI controllers
SPI clock rate of Master can be up to 36 MHz (chip working at 5V); SPI clock rate of
Slave can be up to 18 MHz (chip working at 5V)
Supports SPI Master/Slave mode
Full duplex synchronous serial data transfer
Variable length of transfer data from 8 to 32 bits
MSB or LSB first data transfer
Rx and Tx on both rising or falling edge of serial clock independently
Two slave/device select lines in Master mode, and one slave/device select line in
Slave mode
Supports Byte Suspend mode in 32-bit transmission
Supports PDMA mode
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NUC100/120xxxDN
– Supports three wire, no slave select signal, bi-direction interface
2
IC
–
–
–
–
–
–
–
–
–
–
2
IS
2
Up to two sets of I C device
Master/Slave mode
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 allowing devices with different bit rates to communicate
via one serial bus
Serial clock synchronization used as a handshake mechanism to suspend and resume
serial transfer
Programmable clocks allowing for versatile rate control
Supports multiple address recognition (four slave address with mask option)
Supports wake-up function
– Interface with external audio CODEC
– Operate as either Master or Slave mode
– Capable of handling 8-, 16-, 24- and 32-bit word sizes
– Supports mono and stereo audio data
2
– Supports I S and MSB justified data format
– Provides two 8 word FIFO data buffers, one for transmitting and the other for receiving
– Generates interrupt requests when buffer levels cross a programmable boundary
– Supports two DMA requests, one for transmitting and the other for receiving
PS/2 Device
NUC100/120XXXDN DATASHEET
– Host communication inhibit and request to send detection
– Reception frame error detection
– Programmable 1 to 16 bytes transmit buffer to reduce CPU intervention
– Double buffer for data reception
– Software override bus
EBI (External bus interface)
– Accessible space: 64 KB in 8-bit mode or 128 KB in 16-bit mode
– Supports 8-/16-bit data width
– Supports byte write in 16-bit data width mode
ADC
– 12-bit SAR ADC with 760 kSPS
– Up to 8-ch single-end input or 4-ch differential input
– Single scan/single cycle scan/continuous scan
– Each channel with individual result register
– Scan on enabled channels
– Threshold voltage detection
– Conversion started by software programming or external input
– Supports PDMA mode
Analog Comparator
– Up to two analog comparators
– External input or internal Band-gap voltage selectable at negative node
– Interrupt when compare results change
– Supports Power-down wake-up
Smart Card Host (SC)
–
–
Apr. 8, 2020
Compliant to ISO-7816-3 T=0, T=1
Supports up to three ISO-7816-3 ports
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–
–
–
–
–
Separate receive / transmit 4 bytes entry FIFO for data payloads
Programmable transmission clock frequency
Programmable receiver buffer trigger level
Programmable guard time selection (11 ETU ~ 266 ETU)
One 24-bit and two 8-bit time-out counters for Answer to Request (ATR) and waiting
times processing
– Supports auto inverse convention function
– Supports transmitter and receiver error retry and error limit function
– Supports hardware activation sequence process
– Supports hardware warm reset sequence process
– Supports hardware deactivation sequence process
– Supports hardware auto deactivation sequence when detecting the card is removal
96-bit unique ID (UID)
One built-in temperature sensor with 1℃ resolution
Brown-out Detector
– With 4 levels: 4.4 V/3.7 V/2.7 V/2.2 V
– Supports Brown-out Interrupt and Reset option
Low Voltage Reset
– Threshold voltage level: 2.0 V
Operating Temperature: -40℃ ~ 85℃
Packages:
–
–
–
–
All Green package (RoHS)
LQFP 100-pin
LQFP 64-pin
LQFP 48-pin
NUC100/120XXXDN DATASHEET
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2.2 NuMicro® NUC120 Features – USB Line
®
®
ARM Cortex -M0 core
– Runs up to 50 MHz
– One 24-bit system timer
– Supports low power sleep mode
– Single-cycle 32-bit hardware multiplier
– NVIC for the 32 interrupt inputs, each with 4-levels of priority
– Serial Wire Debug supports with 2 watchpoints/4 breakpoints
Built-in LDO for wide operating voltage ranges from 2.5 V to 5.5 V
Flash Memory
–
–
–
32/64/128 Kbytes Flash for program code
4 KB flash for ISP loader
Supports In-System-Program (ISP) and In-Application-Program (IAP) application code
update
– 512 byte page erase for flash
– Configurable Data Flash address and size for 128 KB system, fixed 4 KB Data Flash
for the 32 KB and 64 KB system
– Supports 2-wired ICP update through SWD/ICE interface
– Supports fast parallel programming mode by external programmer
SRAM Memory
– 4/8/16 Kbytes embedded SRAM
– Supports PDMA mode
PDMA (Peripheral DMA)
–
–
–
Flexible selection for different applications
Built-in 22.1184 MHz high speed oscillator for system operation
Trimmed to ±1 % at +25 ℃ and VDD = 5 V
Trimmed to ±3 % at -40 ℃ ~ +85 ℃ and VDD = 2.5 V ~ 5.5 V
– Built-in 10 kHz low speed oscillator for Watchdog Timer and Wake-up operation
– Supports one PLL, up to 50 MHz, for high performance system operation
– External 4~24 MHz high speed crystal input for USB and precise timing operation
– External 32.768 kHz low speed crystal input for RTC function and low power system
operation
GPIO
–
Four I/O modes:
Quasi-bidirectional
Push-pull output
Open-drain output
Input only with high impendence
– TTL/Schmitt trigger input selectable
– I/O pin configured as interrupt source with edge/level setting
Timer
–
–
Apr. 8, 2020
Supports 4 sets of 32-bit timers with 24-bit up-timer and one 8-bit prescale counter
Independent clock source for each timer
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NUC100/120XXXDN DATASHEET
Supports 9 channels PDMA for automatic data transfer between SRAM and
peripherals
– Supports CRC calculation with four common polynomials, CRC-CCITT, CRC-8, CRC16 and CRC-32
Clock Control
NUC100/120xxxDN
– Provides one-shot, periodic, toggle and continuous counting operation modes
– Supports event counting function
– Supports input capture function
Watchdog Timer
– Multiple clock sources
– 8 selectable time-out period from 1.6 ms ~ 26.0 sec (depending on clock source)
– Wake-up from Power-down or Idle mode
– Interrupt or reset selectable on watchdog time-out
Window Watchdog Timer
– 6-bit down counter with 11-bit prescale for wide range window selected
RTC
–
–
–
–
–
–
Supports software compensation by setting frequency compensate register (FCR)
Supports RTC counter (second, minute, hour) and calendar counter (day, month, year)
Supports Alarm registers (second, minute, hour, day, month, year)
Selectable 12-hour or 24-hour mode
Automatic leap year recognition
Supports periodic time tick interrupt with 8 period options 1/128, 1/64, 1/32, 1/16, 1/8,
1/4, 1/2 and 1 second
– Supports wake-up function
PWM/Capture
–
Up to four built-in 16-bit PWM generators providing eight PWM outputs or four
complementary paired PWM outputs
– Each PWM generator equipped with one clock source selector, one clock divider, one
8-bit prescaler and one Dead-Zone generator for complementary paired PWM
– Up to eight 16-bit digital capture timers (shared with PWM timers) providing eight
rising/falling capture inputs
– Supports Capture interrupt
UART
NUC100/120XXXDN DATASHEET
–
–
–
–
–
–
–
–
SPI
–
–
–
–
–
–
–
–
–
–
–
–
Apr. 8, 2020
Up to three UART controllers
UART ports with flow control (TXD, RXD, CTS and RTS)
UART0 with 64-byte FIFO is for high speed
UART1/2(optional) with 16-byte FIFO for standard device
Supports IrDA (SIR) and LIN function
Supports RS-485 9-bit mode and direction control
Programmable baud-rate generator up to 1/16 system clock
Supports PDMA mode
Up to four sets of SPI controllers
The maximum SPI clock rate of Master can up to 36 MHz (chip working at 5V)
The maximum SPI clock rate of Slave can up to 18 MHz (chip working at 5V)
Supports SPI Master/Slave mode
Full duplex synchronous serial data transfer
Variable length of transfer data from 8 to 32 bits
MSB or LSB first data transfer
Rx and Tx on both rising or falling edge of serial clock independently
Two slave/device select lines in Master mode, and one slave/device select line in
Slave mode
Supports Byte Suspend mode in 32-bit transmission
Supports PDMA mode
Supports three wire, no slave select signal, bi-direction interface
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NUC100/120xxxDN
2
IC
–
–
–
–
–
–
–
–
–
–
2
IS
2
Up to two sets of I C device
Master/Slave mode
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 allowing devices with different bit rates to communicate
via one serial bus
Serial clock synchronization used as a handshake mechanism to suspend and resume
serial transfer
Programmable clocks allowing for versatile rate control
Supports multiple address recognition (four slave address with mask option)
Supports wake-up function
– Interface with external audio CODEC
– Operate as either Master or Slave mode
– Capable of handling 8-, 16-, 24- and 32-bit word sizes
– Supports mono and stereo audio data
2
– Supports I S and MSB justified data format
– Provides two 8 word FIFO data buffers, one for transmitting and the other for receiving
– Generates interrupt requests when buffer levels cross a programmable boundary
– Supports two DMA requests, one for transmitting and the other for receiving
PS/2 Device
NUC100/120XXXDN DATASHEET
– Host communication inhibit and request to send detection
– Reception frame error detection
– Programmable 1 to 16 bytes transmit buffer to reduce CPU intervention
– Double buffer for data reception
– Software override bus
EBI (External bus interface)
– Accessible space: 64 KB in 8-bit mode or 128 KB in 16-bit mode
– Supports 8-/16-bit data width
– Supports byte write in 16-bit data width mode
USB 2.0 Full-Speed Device
– One set of USB 2.0 FS Device 12 Mbps
– On-chip USB Transceiver
– Provides 1 interrupt source with 4 interrupt events
– Supports Control, Bulk In/Out, Interrupt and Isochronous transfers
– Auto suspend function when no bus signaling for 3 ms
– Provides 6 programmable endpoints
– Includes 512 Bytes internal SRAM as USB buffer
– Provides remote wake-up capability
ADC
–
–
–
–
–
–
–
–
Apr. 8, 2020
12-bit SAR ADC with 760 kSPS
Up to 8-ch single-end input or 4-ch differential input
Single scan/single cycle scan/continuous scan
Each channel with individual result register
Scan on enabled channels
Threshold voltage detection
Conversion started by software programming or external input
Supports PDMA mode
Page 15 of 109
Rev 1.04
NUC100/120xxxDN
Analog Comparator
– Up to two analog comparators
– External input or internal Band-gap voltage selectable at negative node
– Interrupt when compare results change
– Supports Power-down wake-up
Smart Card Host (SC)
–
–
–
–
–
–
–
Compliant to ISO-7816-3 T=0, T=1
Supports up to three ISO-7816-3 ports
Separate receive / transmit 4 bytes entry FIFO for data payloads
Programmable transmission clock frequency
Programmable receiver buffer trigger level
Programmable guard time selection (11 ETU ~ 266 ETU)
One 24-bit and two 8-bit time-out counters for Answer to Request (ATR) and waiting
times processing
– Supports auto inverse convention function
– Supports transmitter and receiver error retry and error limit function
– Supports hardware activation sequence process
– Supports hardware warm reset sequence process
– Supports hardware deactivation sequence process
– Supports hardware auto deactivation sequence when detecting the card removal
96-bit unique ID (UID)
One built-in temperature sensor with 1℃ resolution
Brown-out Detector
– With 4 levels: 4.4 V/3.7 V/2.7 V/2.2 V
– Supports Brown-out Interrupt and Reset option
Low Voltage Reset
NUC100/120XXXDN DATASHEET
– Threshold voltage level: 2.0 V
Operating Temperature: -40℃ ~ 85℃
Packages:
–
–
–
–
Apr. 8, 2020
All Green package (RoHS)
LQFP 100-pin
LQFP 64-pin
LQFP48-pin
Page 16 of 109
Rev 1.04
NUC100/120xxxDN
3
ABBREVIATIONS
Description
ACMP
Analog Comparator Controller
ADC
Analog-to-Digital Converter
AES
Advanced Encryption Standard
APB
Advanced Peripheral Bus
AHB
Advanced High-Performance Bus
BOD
Brown-out Detection
CAN
Controller Area Network
DAP
Debug Access Port
DES
Data Encryption Standard
EBI
External Bus Interface
EPWM
Enhanced Pulse Width Modulation
FIFO
First In, First Out
FMC
Flash Memory Controller
FPU
Floating-point Unit
GPIO
General-Purpose Input/Output
HCLK
The Clock of Advanced High-Performance Bus
HIRC
22.1184 MHz Internal High Speed RC Oscillator
HXT
4~24 MHz External High Speed Crystal Oscillator
IAP
In Application Programming
ICP
In Circuit Programming
ISP
In System Programming
LDO
Low Dropout Regulator
LIN
Local Interconnect Network
LIRC
10 kHz internal low speed RC oscillator (LIRC)
MPU
Memory Protection Unit
NVIC
Nested Vectored Interrupt Controller
PCLK
The Clock of Advanced Peripheral Bus
PDMA
Peripheral Direct Memory Access
PLL
Phase-Locked Loop
PWM
Pulse Width Modulation
QEI
Quadrature Encoder Interface
SDIO
Secure Digital Input/Output
SPI
Serial Peripheral Interface
Apr. 8, 2020
Page 17 of 109
NUC100/120XXXDN DATASHEET
Acronym
Rev 1.04
NUC100/120xxxDN
SPS
Samples per Second
TDES
Triple Data Encryption Standard
TMR
Timer Controller
UART
Universal Asynchronous Receiver/Transmitter
UCID
Unique Customer ID
USB
Universal Serial Bus
WDT
Watchdog Timer
WWDT
Window Watchdog Timer
Table 3-1 List of Abbreviations
NUC100/120XXXDN DATASHEET
Apr. 8, 2020
Page 18 of 109
Rev 1.04
NUC100/120xxxDN
4
PARTS INFORMATION LIST AND PIN CONFIGURATION
4.1 NuMicro® NUC100/120xxxDN Selection Guide
4.1.1
NuMicro® NUC100 Advanced Line Selection Guide
Part Number
APROM RAM
ISP
Data
Loader
Flash
ROM
Connectivity
2
I/O Timer
I S SC
2
UART SPI I C USB LIN CAN
Co
ISP
PWM ADC RTC EBI
Package
mp.
ICP
NUC100LC1DN
32 KB
4 KB 4 KB
4 KB
up to 4x3237
bit
2
1
2
-
-
-
1
3
1
6
8x12bit
v
-
v
LQFP48
NUC100LD2DN
64 KB
8 KB 4 KB
4 KB
up to 4x3237
bit
2
1
2
-
-
-
1
3
1
6
8x12bit
v
-
v
LQFP48
Defin
able
4 KB
up to 4x3237
bit
2
1
2
-
-
-
1
3
1
6
8x12bit
v
-
v
LQFP48
NUC100LE3DN 128 KB 16 KB
NUC100RC1DN
32 KB
4 KB 4 KB
4 KB
up to 4x3251
bit
3
2
2
-
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC100RD1DN
64 KB
4 KB 4 KB
4 KB
up to 4x3251
bit
3
2
2
-
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC100RD2DN
64 KB
8 KB 4 KB
4 KB
up to 4x3251
bit
3
2
2
-
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC100RE3DN 128 KB 16 KB
Defin
able
4 KB
up to 4x3251
bit
3
2
2
-
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC100VE3DN 128 KB 16 KB
Defin
able
4 KB
up to 4x3284
bit
3
4
2
-
-
-
1
3
2
8
8x12bit
v
v
v LQFP100
4.1.2
NuMicro® NUC120 USB Line Selection Guide
APROM RAM
ISP
Data
Loader
Flash
ROM
Connectivity
I2S SC
I/O Timer
UART SPI I2C USB LIN CAN
Co
ISP
PWM ADC RTC EBI
Package
mp.
ICP
NUC120LC1DN
32 KB
4 KB 4 KB
4 KB
up to 4x3233
bit
2
1
2
1
-
-
1
3
1
4
8x12bit
v
-
v
LQFP48
NUC120LD2DN
64 KB
8 KB 4 KB
4 KB
up to 4x3233
bit
2
1
2
1
-
-
1
3
1
4
8x12bit
v
-
v
LQFP48
Defin
able
4 KB
up to 4x3233
bit
2
1
2
1
-
-
1
3
1
4
8x12bit
v
-
v
LQFP48
NUC120LE3DN 128 KB 16 KB
NUC120RC1DN
32 KB
4 KB 4 KB
4 KB
up to 4x3247
bit
2
2
2
1
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC120RD1DN
64 KB
4 KB 4 KB
4 KB
up to 4x3247
bit
2
2
2
1
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC120RD2DN
64 KB
8 KB 4 KB
4 KB
up to 4x3247
bit
2
2
2
1
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC120RE3DN 128 KB 16 KB
Defin
able
4 KB
up to 4x3247
bit
2
2
2
1
-
-
1
3
2
6
8x12bit
v
v
v
LQFP64
NUC120VE3DN 128 KB 16 KB
Defin
able
4 KB
up to 4x3280
bit
3
4
2
1
-
-
1
3
2
8
8x12bit
v
v
v
LQFP100
Apr. 8, 2020
Page 19 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
Part Number
NUC100/120xxxDN
NUC 1 0 0 - X X X X X
ARM-Based
32-bit Microcontroller
Temperature
CPU core
N: -40℃ ~ +85℃
E: -40℃ ~ +105℃
C: -40℃ ~ +125℃
1/2: Cortex-M0
5/7: ARM7
9: ARM9
Reserve
Function
RAM Size
1: 4 KB
2: 8 KB
3: 16 KB
0: Advanced Line
2: USB Line
3: Automotive Line
4: Connectivity Line
APROM Size
A: 8 KB
B: 16 KB
C: 32 KB
D: 64 KB
E: 128 KB
Package Type
Y: QFN 36
L: LQFP 48
R: LQFP 64
V: LQFP 100
®
Figure 4-1 NuMicro NUC100 Series Selection Code
NUC100/120XXXDN DATASHEET
Apr. 8, 2020
Page 20 of 109
Rev 1.04
NUC100/120xxxDN
4.2 Pin Configuration
®
PA.4/ADC4/AD9/SC1PWR
PA.3/ADC3/AD10/SC0DAT
PA.2/ADC2/AD11/SC0CLK
PA.1/ADC1/AD12/SC0RST
PA.0/ADC0/SC0PWR
AVSS
VSS
VDD
ICE_CK
ICE_DAT
PA.12/PWM0/AD13/SC2DAT
PA.13/PWM1/AD14/SC2CLK
PA.14/PWM2/AD15/SC2RST
PA.15/PWM3/I2SMCLK/SC2PWR
PC.8/SPISS10/MCLK
PC.9/SPICLK1
PC.10/MISO10
PC.11/MOSI10
PC.12/MISO11
PC.13/MOSI11
PE.0/PWM6
PE.1/PWM7
PE.2
PE.3
PE.4
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
NuMicro NUC100VxxDN LQFP 100 pin
74
4.2.1.1
NuMicro® NUC100 Pin Diagram
75
4.2.1
76
50
PB.9/TM0/SPISS11
SC1CLK/AD7/ADC6/PA.6
77
49
PB.10/TM1/SPISS01
SC1DAT/AD6/ADC7/SPISS21/PA.7
78
48
PB.11/TM2/PWM4
VREF
79
47
PE.5/T1EX/PWM5
AVDD
80
46
PE.6
SPISS20/PD.0
81
45
PC.0/SPISS00/I2SLRCLK
SPICLK2/PD.1
82
44
PC.1/SPICLK0/I2SBCLK
MISO20/PD.2
83
43
PC.2/MISO00/I2SDI
MOSI20/PD.3
84
42
PC.3/MOSI00/I2SDO
MISO21/PD.4
85
41
PC.4/MISO01
MOSI21/PD.5
86
40
PC.5/MOSI01
SC1CD/AD5/CPN0/PC.7
87
39
PD.15/TXD2
SC0CD/AD4/CPP0/PC.6
88
38
PD.14/RXD2
AD3/CPN1/PC.15
89
37
PD.7
AD2/CPP1/PC.14
90
36
PD.6
T0EX/INT1/PB.15
91
35
PB.3/CTS0/T3EX/nWRH/SC2CD
XT1_OUT/PF.0
92
34
PB.2/RTS0/T2EX/nWRL
XT1_IN/PF.1
93
33
PB.1/TXD0
/RESET
94
32
PB.0/RXD0
VSS
95
31
PE.7
VDD
96
30
PE.8
PS2DAT/PF.2
97
29
PE.9
PS2CLK/PF.3
98
28
PE.10
PVSS
99
27
PE.11
100
26
PE.12
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
I2C0SCL/PA.9
I2C0SDA/PA.8
SPISS30/PD.8
SPICLK3/PD.9
MISO30/PD.10
MOSI30/PD.11
MISO31/PD.12
MOSI31/PD.13
RXD1/PB.4
TXD1/PB.5
ALE/RTS1/PB.6
nCS/CTS1/PB.7
LDO
VDD
VSS
7
X32O
10
6
AD0/CLKO/CPO0/PB.12
nWR/I2C1SDA/PA.10
5
AD1/CPO1/PB.13
9
4
SPISS31/INT0/PB.14
nRD/I2C1SCL/PA.11
3
PE.13
8
2
PE.14
X32I
1
PE.15
TM0/STADC/PB.8
NUC100VxxDN
LQFP 100-pin
NUC100/120XXXDN DATASHEET
SC1RST/AD8/ADC5/PA.5
®
Figure 4-2 NuMicro NUC100VxxDN LQFP 100-pin Diagram
Apr. 8, 2020
Page 21 of 109
Rev 1.04
NUC100/120xxxDN
®
PA.4/ADC4/AD9/SC1PWR
PA.3/ADC3/AD10/SC0DAT
PA.2/ADC2/AD11/SC0CLK
PA.1/ADC1/AD12/SC0RST
PA.0/ADC0/SC0PWR
AVSS
ICE_CK
ICE_DAT
PA.12/PWM0/AD13/SC2DAT
PA.13/PWM1/AD14/SC2CLK
PA.14/PWM2/AD15/SC2RST
PA.15/PWM3/I2SMCLK/SC2PWR
PC.8/SPISS10/MCLK
PC.9/SPICLK1
PC.10/MISO10
PC.11/MOSI10
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
NuMicro NUC100RxxDN LQFP 64 pin
48
4.2.1.2
SC1RST/AD8/ADC5/PA.5
49
32
PB.9/TM1
SC1CLK/AD7/ADC6/PA.6
50
31
PB.10/TM2
SC1DAT/AD6/ADC7/PA.7
51
30
PB.11/TM3/PWM4
AVDD
52
29
PE.5/T1EX/PWM5
SC1CD/AD5/CPN0/PC.7
53
28
PC.0/SPISS00/I2SLRCLK
SC0CD/AD4/CPP0/PC.6
54
27
PC.1/SPICLK0/I2SBCLK
AD3/CPN1/PC.15
55
26
PC.2/MISO00/I2SDI
AD2/CPP1/PC.14
56
25
PC.3/MOSI00/I2SDO
T0EX/INT1/PB.15
57
24
PD.15/TXD2
XT1_OUT/PF.0
58
23
PD.14/RXD2
XT1_IN/PF.1
59
22
PD.7
/RESET
60
21
PD.6
VSS
61
20
PB.3/CTS0/T3EX/nWRH/SC2CD
VDD
62
19
PB.2/RTS0/T2EX/nWRL
PVSS
63
18
PB.1/TXD0
TM0/STADC/PB.8
64
17
PB.0/RXD0
11
12
13
14
15
16
ALE/RTS1/PB.6
nCS/CTS1/PB.7
LDO
VDD
VSS
9
I2C0SDA/PA.8
TXD1/PB.5
8
I2C0SCL/PA.9
10
7
nWR/I2C1SDA/PA.10
RXD1/PB.4
6
4
X32O
nRD/I2C1SCL/PA.11
3
AD0/CLKO/CPO0/PB.12
5
2
X32I
1
INT0/PB.14
NUC100/120XXXDN DATASHEET
AD1/CPO1/PB.13
NUC100RxxDN
LQFP 64-pin
®
Figure 4-3 NuMicro NUC100RxxDN LQFP 64-pin Diagram
Apr. 8, 2020
Page 22 of 109
Rev 1.04
NUC100/120xxxDN
®
PA.4/ADC4/SC1PWR
PA.3/ADC3/SC0DAT
PA.2/ADC2/SC0CLK
PA.1/ADC1/SC0RST
PA.0/ADC0/SC0PWR
AVSS
ICE_CK
ICE_DAT
PA.12/PWM0/SC2DAT
PA.13/PWM1/SC2CLK
PA.14/PWM2/SC2RST
PA.15/PWM3/I2SMCLK/SC2PWR
36
35
34
33
32
31
30
29
28
27
26
25
NuMicro NUC100LxxDN LQFP 48 pin
SC1RST/ADC5/PA.5
37
24
PB.9/TM1
SC1CLK/ADC6/PA.6
38
23
PB.10/TM2
SC1DAT/ADC7/PA.7
39
22
PB.11/TM3/PWM4
AVDD
40
21
PE.5/T1EX/PWM5
SC1CD/CPN0/PC.7
41
20
PC.0/SPISS00/I2SLRCLK
SC0CD/CPP0/PC.6
42
19
PC.1/SPICLK0/I2SBCLK
T0EX/INT1/PB.15
43
18
PC.2/MISO00/I2SDI
XT1_OUT/PF.0
44
17
PC.3/MOSI00/I2SDO
XT1_IN/PF.1
45
16
PB.3/CTS0/T3EX/SC2CD
/RESET
46
15
PB.2/RTS0/T2EX
PVSS
47
14
PB.1/TXD0
TM0/STADC/PB.8
48
13
PB.0/RXD0
9
TXD1/PB.5
12
8
RXD1/PB.4
VSS
7
I2C0SDA/PA.8
11
6
I2C0SCL/PA.9
10
5
I2C1SDA/PA.10
VDD
4
LDO
3
X32I
I2C1SCL/PA.11
2
X32O
NUC100/120XXXDN DATASHEET
1
NUC100LxxDN
LQFP 48-pin
CLKO/CPO0/PB.12
4.2.1.3
®
Figure 4-4 NuMicro NUC100LxxDN LQFP 48-pin Diagram
Apr. 8, 2020
Page 23 of 109
Rev 1.04
NUC100/120xxxDN
®
PA.4/ADC4/AD9/SC1PWR
PA.3/ADC3/AD10/SC0DAT
PA.2/ADC2/AD11/SC0CLK
PA.1/ADC1/AD12/SC0RST
PA.0/ADC0/SC0PWR
AVSS
VSS
VDD
ICE_CK
ICE_DAT
PA.12/PWM0/AD13/SC2DAT
PA.13/PWM1/AD14/SC2CLK
PA.14/PWM2/AD15/SC2RST
PA.15/PWM3/I2SMCLK/SC2PWR
PC.8/SPISS10/MCLK
PC.9/SPICLK1
PC.10/MISO10
PC.11/MOSI10
PC.12/MISO11
PC.13/MOSI11
PE.0/PWM6
PE.1/PWM7
PE.2
PE.3
PE.4
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
NuMicro NUC120VxxDN LQFP 100 pin
74
4.2.2.1
NuMicro® NUC120 Pin Diagram
75
4.2.2
SC1RST/AD8/ADC5/PA.5
76
50
PB.9/TM1/SPISS11
SC1CLK/AD7/ADC6/PA.6
77
49
PB.10/TM2/SPISS01
SC1DAT/AD6/ADC7/SPISS21/PA.7
78
48
PB.11/TM3/PWM4
VREF
79
47
PE.5/T1EX/PWM5
AVDD
80
46
PE.6
SPISS20/PD.0
81
45
PC.0/SPISS00/I2SLRCLK
SPICLK2/PD.1
82
44
PC.1/SPICLK0/I2SBCLK
MISO20/PD.2
83
43
PC.2/MISO00/I2SDI
MOSI20/PD.3
84
42
PC.3/MOSI00/I2SDO
MISO21/PD.4
85
41
PC.4/MISO01
MOSI21/PD.5
86
40
PC.5/MOSI01
SC1CD/AD5/CPN0/PC.7
87
39
PD.15/TXD2
SC0CD/AD4/CPP0/PC.6
88
38
PD.14/RXD2
AD3/CPN1/PC.15
89
37
PD.7
AD2/CPP1/PC.14
90
36
PD.6
T0EX/INT1/PB.15
91
35
PB.3/CTS0/T3EX/nWRH/SC2CD
XT1_OUT/PF.0
92
34
PB.2/RTS0/T2EX/nWRL
XT1_IN/PF.1
93
33
PB.1/TXD0
/RESET
94
32
PB.0/RXD0
VSS
95
31
D+
VDD
96
30
D-
PS2DAT/PF.2
97
29
VDD33
PS2CLK/PF.3
98
28
VBUS
PVSS
99
27
PE.7
100
26
PE.8
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
I2C0SCL/PA.9
I2C0SDA/PA.8
SPISS30/PD.8
SPICLK3/PD.9
MISO30/PD.10
MOSI30/PD.11
MISO31/PD.12
MOSI31/PD.13
RXD1/PB.4
TXD1/PB.5
ALE/RTS1/PB.6
nCS/CTS1/PB.7
LDO
VDD
VSS
7
X32O
10
6
AD0/CLKO/CPO0/PB.12
nWR/I2C1SDA/PA.10
5
AD1/CPO1/PB.13
9
4
SPISS31/INT0/PB.14
nRD/I2C1SCL/PA.11
3
PE.13
8
2
PE.14
X32I
1
PE.15
NUC100/120XXXDN DATASHEET
TM0/STADC/PB.8
NUC120VxxDN
LQFP 100-pin
®
Figure 4-5 NuMicro NUC120VxxDN LQFP 100-pin Diagram
Apr. 8, 2020
Page 24 of 109
Rev 1.04
NUC100/120xxxDN
®
PA.4/ADC4/AD9/SC1PWR
PA.3/ADC3/AD10/SC0DAT
PA.2/ADC2/AD11/SC0CLK
PA.1/ADC1/AD12/SC0RST
PA.0/ADC0/SC0PWR
AVSS
ICE_CK
ICE_DAT
PA.12/PWM0/AD13/SC2DAT
PA.13/PWM1/AD14/SC2CLK
PA.14/PWM2/AD15/SC2RST
PA.15/PWM3/I2SMCLK/SC2PWR
PC.8/SPISS10/MCLK
PC.9/SPICLK1
PC.10/MISO10
PC.11/MOSI10
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
NuMicro NUC120RxxDN LQFP 64 pin
48
4.2.2.2
SC1RST/AD8/ADC5/PA.5
49
32
PB.9/TM1
SC1CLK/AD7/ADC6/PA.6
50
31
PB.10/TM2
SC1DAT/AD6/ADC7/PA.7
51
30
PB.11/TM3/PWM4
AVDD
52
29
PE.5/T1EX/PWM5
SC1CD/AD5/CPN0/PC.7
53
28
PC.0/SPISS00/I2SLRCLK
SC0CD/AD4/CPP0/PC.6
54
27
PC.1/SPICLK0/I2SBCLK
AD3/CPN1/PC.15
55
26
PC.2/MISO00/I2SDI
AD2/CPP1/PC.14
56
25
PC.3/MOSI00/I2SDO
T0EX/INT1/PB.15
57
24
PB.3/CTS0/T3EX/nWRH/SC2CD
XT1_OUT/PF.0
58
23
PB.2/RTS0/T2EX/nWRL
XT1_IN/PF.1
59
22
PB.1/TXD0
/RESET
60
21
PB.0/RXD0
VSS
61
20
D+
VDD
62
19
D-
PVSS
63
18
VDD33
TM0/STADC/PB.8
64
17
VBUS
11
12
13
14
15
16
ALE/RTS1/PB.6
nCS/CTS1/PB.7
LDO
VDD
VSS
9
I2C0SDA/PA.8
TXD1/PB.5
8
I2C0SCL/PA.9
10
7
nWR/I2C1SDA/PA.10
RXD1/PB.4
6
4
X32O
nRD/I2C1SCL/PA.11
3
AD0/CLKO/CPO0/PB.12
5
2
X32I
1
INT0/PB.14
NUC100/120XXXDN DATASHEET
AD1/CPO1/PB.13
NUC120RxxDN
LQFP 64-pin
®
Figure 4-6 NuMicro NUC120RxxDN LQFP 64-pin Diagram
Apr. 8, 2020
Page 25 of 109
Rev 1.04
NUC100/120xxxDN
®
PA.4/ADC4/SC1PWR
PA.3/ADC3/SC0DAT
PA.2/ADC2/SC0CLK
PA.1/ADC1/SC0RST
PA.0/ADC0/SC0PWR
AVSS
ICE_CK
ICE_DAT
PA.12/PWM0/SC2DAT
PA.13/PWM1/SC2CLK
PA.14/PWM2/SC2RST
PA.15/PWM3/I2SMCLK/SC2PWR
36
35
34
33
32
31
30
29
28
27
26
25
NuMicro NUC120LxxDN LQFP 48 pin
SC1RST/ADC5/PA.5
37
24
PC.0/SPISS00/I2SLRCLK
SC1CLK/ADC6/PA.6
38
23
PC.1/SPICLK0/I2SBCLK
SC1DAT/ADC7/PA.7
39
22
PC.2/MISO00/I2SDI
AVDD
40
21
PC.3/MOSI00/I2SDO
SC1CD/CPN0/PC.7
41
20
PB.3/CTS0/T3EX/SC2CD
SC0CD/CPP0/PC.6
42
19
PB.2/RTS0/T2EX
T0EX/INT1/PB.15
43
18
PB.1/TXD0
XT1_OUT/PF.0
44
17
PB.0/RXD0
XT1_IN/PF.1
45
16
D+
/RESET
46
15
D-
PVSS
47
14
VDD33
TM0/STADC/PB.8
48
13
VBUS
9
TXD1/PB.5
12
8
RXD1/PB.4
VSS
7
I2C0SDA/PA.8
11
6
I2C0SCL/PA.9
10
5
I2C1SDA/PA.10
VDD
4
LDO
3
X32I
I2C1SCL/PA.11
2
X32O
NUC100/120XXXDN DATASHEET
1
NUC120LxxDN
LQFP 48-pin
CLKO/CPO0/PB.12
4.2.2.3
®
Figure 4-7 NuMicro NUC120LxxDN LQFP 48-pin Diagram
Apr. 8, 2020
Page 26 of 109
Rev 1.04
NUC100/120xxxDN
4.3 Pin Description
4.3.1
NuMicro® NUC100 Pin Description
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
1
PE.15
I/O
General purpose digital I/O pin.
2
PE.14
I/O
General purpose digital I/O pin.
3
PE.13
I/O
General purpose digital I/O pin.
PB.14
I/O
General purpose digital I/O pin.
/INT0
I
1
4
5
2
1
6
External interrupt0 input pin.
SPISS31
I/O
2nd SPI3 slave select pin.
PB.13
I/O
General purpose digital I/O pin.
CPO1
O
Comparator1 output pin.
AD1
I/O
EBI Address/Data bus bit1
PB.12
I/O
General purpose digital I/O pin.
CPO0
O
Comparator0 output pin
CLKO
O
Frequency Divider output pin
AD0
I/O
EBI Address/Data bus bit0
3
4
2
X32O
O
External 32.768 kHz low speed crystal output pin
8
5
3
X32I
I
External 32.768 kHz low speed crystal input pin
PA.11
I/O
General purpose digital I/O pin.
I2C1SCL
I/O
I2C1 clock pin.
nRD
O
EBI read enable output pin
PA.10
I/O
General purpose digital I/O pin.
I2C1SDA
I/O
I2C1 data input/output pin.
nWR
O
EBI write enable output pin
PA.9
I/O
General purpose digital I/O pin.
I2C0SCL
I/O
I2C0 clock pin.
PA.8
I/O
General purpose digital I/O pin.
I2C0SDA
I/O
I2C0 data input/output pin.
PD.8
I/O
General purpose digital I/O pin.
SPISS30
I/O
1st SPI3 slave select pin.
PD.9
I/O
General purpose digital I/O pin.
SPICLK3
I/O
SPI3 serial clock pin.
PD.10
I/O
General purpose digital I/O pin.
4
9
6
5
10
11
12
7
8
9
6
7
13
NUC100/120XXXDN DATASHEET
7
14
15
Apr. 8, 2020
Page 27 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
MISO30
I/O
1st SPI3 MISO (Master In, Slave Out) pin.
PD.11
I/O
General purpose digital I/O pin.
MOSI30
I/O
1st SPI3 MOSI (Master Out, Slave In) pin.
PD.12
I/O
General purpose digital I/O pin.
MISO31
I/O
2nd SPI3 MISO (Master In, Slave Out) pin.
PD.13
I/O
General purpose digital I/O pin.
MOSI31
I/O
2nd SPI3 MOSI (Master Out, Slave In) pin.
PB.4
I/O
General purpose digital I/O pin.
RXD1
I
PB.5
I/O
General purpose digital I/O pin.
TXD1
O
Data transmitter output pin for UART1.
PB.6
I/O
General purpose digital I/O pin.
RTS1
O
Request to Send output pin for UART1.
ALE
O
EBI address latch enable output pin
PB.7
I/O
General purpose digital I/O pin.
CTS1
I
Clear to Send input pin for UART1.
nCS
O
EBI chip select enable output pin
16
17
18
19
20
21
22
10
11
8
Data receiver input pin for UART1.
9
12
13
NUC100/120XXXDN DATASHEET
23
14
10
LDO
P
LDO output pin
24
15
11
VDD
P
Power supply for I/O ports and LDO source for internal PLL and
digital circuit.
25
16
12
VSS
P
Ground pin for digital circuit.
26
PE.12
I/O
General purpose digital I/O pin.
27
PE.11
I/O
General purpose digital I/O pin.
28
PE.10
I/O
General purpose digital I/O pin.
29
PE.9
I/O
General purpose digital I/O pin.
30
PE.8
I/O
General purpose digital I/O pin.
31
PE.7
I/O
General purpose digital I/O pin.
PB.0
I/O
General purpose digital I/O pin.
RXD0
I
PB.1
I/O
General purpose digital I/O pin.
TXD0
O
Data transmitter output pin for UART0.
PB.2
I/O
General purpose digital I/O pin.
RTS0
O
Request to Send output pin for UART0.
32
33
34
17
18
19
Apr. 8, 2020
13
Data receiver input pin for UART0.
14
15
Page 28 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
T2EX
I
Timer2 external capture input pin.
nWRL
O
EBI low byte write enable output pin
PB.3
I/O
General purpose digital I/O pin.
CTS0
I
Clear to Send input pin for UART0.
T3EX
I
Timer3 external capture input pin.
SC2CD
I
SmartCard2 card detect pin.
nWRH
O
EBI high byte write enable output pin
16
35
20
36
21
PD.6
I/O
General purpose digital I/O pin.
37
22
PD.7
I/O
General purpose digital I/O pin.
PD.14
I/O
General purpose digital I/O pin.
38
23
RXD2
I
PD.15
I/O
General purpose digital I/O pin.
TXD2
O
Data transmitter output pin for UART2.
PC.5
I/O
General purpose digital I/O pin.
MOSI01
I/O
2nd SPI0 MOSI (Master Out, Slave In) pin.
PC.4
I/O
General purpose digital I/O pin.
MISO01
I/O
2nd SPI0 MISO (Master In, Slave Out) pin.
PC.3
I/O
General purpose digital I/O pin.
MOSI00
I/O
1st SPI0 MOSI (Master Out, Slave In) pin.
I2SDO
O
I2S data output.
PC.2
I/O
General purpose digital I/O pin.
MISO00
I/O
1st SPI0 MISO (Master In, Slave Out) pin.
39
Data receiver input pin for UART2.
24
40
41
43
44
45
25
26
27
28
17
18
19
20
46
47
29
Apr. 8, 2020
NUC100/120XXXDN DATASHEET
42
I2S data input.
I2SDI
I
PC.1
I/O
General purpose digital I/O pin.
SPICLK0
I/O
SPI0 serial clock pin.
I2SBCLK
I/O
I2S bit clock pin.
PC.0
I/O
General purpose digital I/O pin.
SPISS00
I/O
1st SPI0 slave select pin.
I2SLRCLK
I/O
I2S left right channel clock.
PE.6
I/O
General purpose digital I/O pin.
PE.5
I/O
General purpose digital I/O pin.
PWM5
I/O
PWM5 output/Capture input.
21
Page 29 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
T1EX
I
PB.11
I/O
General purpose digital I/O pin.
TM3
I/O
Timer3 event counter input / toggle output.
PWM4
I/O
PWM4 output/Capture input.
PB.10
I/O
General purpose digital I/O pin.
TM2
I/O
Timer2 event counter input / toggle output.
SPISS01
I/O
2nd SPI0 slave select pin.
PB.9
I/O
General purpose digital I/O pin.
TM1
I/O
Timer1 event counter input / toggle output.
SPISS11
I/O
2nd SPI1 slave select pin.
51
PE.4
I/O
General purpose digital I/O pin.
52
PE.3
I/O
General purpose digital I/O pin.
53
PE.2
I/O
General purpose digital I/O pin.
PE.1
I/O
General purpose digital I/O pin.
PWM7
I/O
PWM7 output/Capture input.
PE.0
I/O
General purpose digital I/O pin.
PWM6
I/O
PWM6 output/Capture input.
PC.13
I/O
General purpose digital I/O pin.
MOSI11
I/O
2nd SPI1 MOSI (Master Out, Slave In) pin.
PC.12
I/O
General purpose digital I/O pin.
MISO11
I/O
2nd SPI1 MISO (Master In, Slave Out) pin.
PC.11
I/O
General purpose digital I/O pin.
MOSI10
I/O
1st SPI1 MOSI (Master Out, Slave In) pin.
PC.10
I/O
General purpose digital I/O pin.
MISO10
I/O
1st SPI1 MISO (Master In, Slave Out) pin.
PC.9
I/O
General purpose digital I/O pin.
SPICLK1
I/O
SPI1 serial clock pin.
PC.8
I/O
General purpose digital I/O pin.
SPISS10
I/O
1st SPI1 slave select pin.
MCLK
O
EBI external clock output pin
PA.15
I/O
General purpose digital I/O pin.
PWM3
I/O
PWM output/Capture input.
48
30
31
22
23
49
32
Timer1 external capture input pin.
24
50
54
55
NUC100/120XXXDN DATASHEET
56
57
58
59
60
61
62
33
34
35
36
37
Apr. 8, 2020
25
Page 30 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
26
63
I2SMCLK
O
I2S master clock output pin.
SC2PWR
O
SmartCard2 power pin.
PA.14
I/O
General purpose digital I/O pin.
PWM2
I/O
PWM2 output/Capture input.
SC2RST
O
SmartCard2 reset pin.
AD15
I/O
EBI Address/Data bus bit15
PA.13
I/O
General purpose digital I/O pin.
PWM1
I/O
PWM1 output/Capture input.
SC2CLK
O
SmartCard2 clock pin.
AD14
I/O
EBI Address/Data bus bit14
PA.12
I/O
General purpose digital I/O pin.
PWM0
I/O
PWM0 output/Capture input.
SC2DAT
O
SmartCard2 data pin.
AD13
I/O
EBI Address/Data bus bit13
39
28
65
Pin Type Description
38
27
64
Pin Name
40
Serial wire debugger data pin.
66
41
29
ICE_DAT
I/O
67
42
30
ICE_CLK
I
68
VDD
P
Power supply for I/O ports and LDO source for internal PLL and
digital circuit.
69
VSS
P
Ground pin for digital circuit.
AVSS
AP
Ground pin for analog circuit.
PA.0
I/O
General purpose digital I/O pin.
ADC0
AI
ADC0 analog input.
SC0PWR
O
SmartCard0 power pin.
PA.1
I/O
General purpose digital I/O pin.
ADC1
AI
ADC1 analog input.
SC0RST
O
SmartCard0 reset pin.
AD12
I/O
EBI Address/Data bus bit12
PA.2
I/O
General purpose digital I/O pin.
ADC2
AI
ADC2 analog input.
SC0CLK
O
SmartCard0 clock pin.
Note: It is recommended to use 100 kΩ pull-up resistor on
ICE_DAT pin
Serial wire debugger clock pin.
71
43
44
31
32
33
72
73
45
46
Apr. 8, 2020
34
Page 31 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
70
Note: It is recommended to use 100 kΩ pull-up resistor on
ICE_CLK pin
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
35
74
NUC100/120XXXDN DATASHEET
I/O
EBI Address/Data bus bit11
PA.3
I/O
General purpose digital I/O pin.
ADC3
AI
ADC3 analog input.
SC0DAT
O
SmartCard0 data pin.
AD10
I/O
EBI Address/Data bus bit10
PA.4
I/O
General purpose digital I/O pin.
ADC4
AI
ADC4 analog input.
SC1PWR
O
SmartCard1 power pin.
AD9
I/O
EBI Address/Data bus bit9
PA.5
I/O
General purpose digital I/O pin.
ADC5
AI
ADC5 analog input.
SC1RST
O
SmartCard1 reset pin.
AD8
I/O
EBI Address/Data bus bit8
PA.6
I/O
General purpose digital I/O pin.
ADC6
AI
ADC6 analog input.
SC1CLK
I/O
SmartCard1 clock pin.
AD7
I/O
EBI Address/Data bus bit7
PA.7
I/O
General purpose digital I/O pin.
ADC7
AI
ADC7 analog input.
SC1DAT
O
SmartCard1 data pin.
SPISS21
I/O
2nd SPI2 slave select pin.
AD6
I/O
EBI Address/Data bus bit6
VREF
AP
Voltage reference input for ADC.
AVDD
AP
Power supply for internal analog circuit.
PD.0
I/O
General purpose digital I/O pin.
SPISS20
I/O
1st SPI2 slave select pin.
PD.1
I/O
General purpose digital I/O pin.
SPICLK2
I/O
SPI2 serial clock pin.
PD.2
I/O
General purpose digital I/O pin.
MISO20
I/O
1st SPI2 MISO (Master In, Slave Out) pin.
PD.3
I/O
General purpose digital I/O pin.
MOSI20
I/O
1st SPI2 MOSI (Master Out, Slave In) pin.
PD.4
I/O
General purpose digital I/O pin.
49
38
77
AD11
48
37
76
Pin Type Description
47
36
75
Pin Name
50
39
78
51
79
80
52
40
81
82
83
84
85
Apr. 8, 2020
Page 32 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
MISO21
I/O
2nd SPI2 MISO (Master In, Slave Out) pin.
PD.5
I/O
General purpose digital I/O pin.
MOSI21
I/O
2nd SPI2 MOSI (Master Out, Slave In) pin.
PC.7
I/O
General purpose digital I/O pin.
CPN0
AI
Comparator0 negative input pin.
86
41
87
53
SC1CD
42
88
90
I/O
EBI Address/Data bus bit5
PC.6
I/O
General purpose digital I/O pin.
CPP0
AI
Comparator0 positive input pin.
54
92
93
55
56
57
58
59
43
I
SmartCard0 card detect pin.
AD4
I/O
EBI Address/Data bus bit4
PC.15
I/O
General purpose digital I/O pin.
CPN1
AI
Comparator1 negative input pin.
AD3
I/O
EBI Address/Data bus bit3
PC.14
I/O
General purpose digital I/O pin.
CPP1
AI
Comparator1 positive input pin.
AD2
I/O
EBI Address/Data bus bit2
PB.15
I/O
General purpose digital I/O pin.
/INT1
I
External interrupt1 input pin.
T0EX
I
Timer0 external capture input pin.
PF.0
I/O
General purpose digital I/O pin.
XT1_OUT
O
External 4~24 MHz (high speed) crystal output pin.
PF.1
I/O
General purpose digital I/O pin.
44
45
46
XT1_IN
I
/RESET
I
External 4~24 MHz (high speed) crystal input pin.
External reset input: active LOW, with an internal pull-up. Set this
pin low reset chip to initial state.
94
60
95
61
VSS
P
Ground pin for digital circuit.
96
62
VDD
P
Power supply for I/O ports and LDO source for internal PLL and
digital circuit.
PF.2
I/O
General purpose digital I/O pin.
PS2DAT
I/O
PS/2 data pin.
PF.3
I/O
General purpose digital I/O pin.
Note: It is recommended to use 10 kΩ pull-up resistor and 10 uF
capacitor on nRESET pin.
97
98
Apr. 8, 2020
Page 33 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
91
SmartCard1 card detect pin.
AD5
SC0CD
89
I
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
PS2CLK
99
100
63
64
47
48
Pin Type Description
I/O
PVSS
P
PB.8
I/O
STADC
TM0
PS/2 clock pin.
PLL ground.
I
General purpose digital I/O pin.
ADC external trigger input.
I/O
Timer0 event counter input / toggle output.
Note: Pin Type I = Digital Input, O = Digital Output; AI = Analog Input; P = Power Pin; AP = Analog Power
NUC100/120XXXDN DATASHEET
Apr. 8, 2020
Page 34 of 109
Rev 1.04
NUC100/120xxxDN
4.3.2
NuMicro® NUC120 Pin Description
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
1
PE.15
I/O
General purpose digital I/O pin.
2
PE.14
I/O
General purpose digital I/O pin.
3
PE.13
I/O
General purpose digital I/O pin.
PB.14
I/O
General purpose digital I/O pin.
/INT0
I
1
4
5
2
1
6
External interrupt0 input pin.
SPISS31
I/O
2nd SPI3 slave select pin.
PB.13
I/O
General purpose digital I/O pin.
CPO1
O
Comparator1 output pin.
AD1
I/O
EBI Address/Data bus bit1
PB.12
I/O
General purpose digital I/O pin.
CPO0
O
Comparator0 output pin
CLKO
O
Frequency Divider output pin
AD0
I/O
EBI Address/Data bus bit0
3
7
4
2
X32O
O
External 32.768 kHz low speed crystal output pin
8
5
3
X32I
I
External 32.768 kHz low speed crystal input pin
I/O
General purpose digital I/O pin.
9
6
I2C1SCL
I/O
I2C1 clock pin.
nRD
O
EBI read enable output pin
PA.10
I/O
General purpose digital I/O pin.
I2C1SDA
I/O
I2C1 data input/output pin.
nWR
O
EBI write enable output pin
PA.9
I/O
General purpose digital I/O pin.
I2C0SCL
I/O
I2C0 clock pin.
PA.8
I/O
General purpose digital I/O pin.
I2C0SDA
I/O
I2C0 data input/output pin.
PD.8
I/O
General purpose digital I/O pin.
SPISS30
I/O
1st SPI3 slave select pin.
PD.9
I/O
General purpose digital I/O pin.
SPICLK3
I/O
SPI3 serial clock pin.
PD.10
I/O
General purpose digital I/O pin.
MISO30
I/O
1st SPI3 MISO (Master In, Slave Out) pin.
5
10
11
12
7
8
9
6
7
13
NUC100/120XXXDN DATASHEET
PA.11
4
14
15
Apr. 8, 2020
Page 35 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
PD.11
I/O
General purpose digital I/O pin.
MOSI30
I/O
1st SPI3 MOSI (Master Out, Slave In) pin.
PD.12
I/O
General purpose digital I/O pin.
MISO31
I/O
2nd SPI3 MISO (Master In, Slave Out) pin.
PD.13
I/O
General purpose digital I/O pin.
MOSI31
I/O
2nd SPI3 MOSI (Master Out, Slave In) pin.
PB.4
I/O
General purpose digital I/O pin.
RXD1
I
PB.5
I/O
General purpose digital I/O pin.
TXD1
O
Data transmitter output pin for UART1.
PB.6
I/O
General purpose digital I/O pin.
RTS1
O
Request to Send output pin for UART1.
ALE
O
EBI address latch enable output pin
PB.7
I/O
General purpose digital I/O pin.
CTS1
I
Clear to Send input pin for UART1.
nCS
O
EBI chip select enable output pin
16
17
18
19
20
21
22
10
11
8
Data receiver input pin for UART1.
9
12
13
NUC100/120XXXDN DATASHEET
23
14
10
LDO
P
LDO output pin
24
15
11
VDD
P
Power supply for I/O ports and LDO source for internal PLL and
digital circuit.
25
16
12
VSS
P
Ground pin for digital circuit.
26
PE.8
I/O
General purpose digital I/O pin.
27
PE.7
I/O
General purpose digital I/O pin.
28
17
13
VBUS
USB
Power supply from USB host or HUB.
29
18
14
VDD33
USB
Internal power regulator output 3.3V decoupling pin.
30
19
15
D-
USB
USB differential signal D-.
31
20
16
D+
USB
USB differential signal D+.
32
21
17
33
34
22
23
Apr. 8, 2020
PB.0
I/O
RXD0
I
PB.1
I/O
General purpose digital I/O pin.
TXD0
O
Data transmitter output pin for UART0.
PB.2
I/O
General purpose digital I/O pin.
RTS0
O
Request to Send output pin for UART0.
T2EX
I
Timer2 external capture input pin.
General purpose digital I/O pin.
Data receiver input pin for UART0.
18
29
Page 36 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
nWRL
O
EBI low byte write enable output pin
PB.3
I/O
General purpose digital I/O pin.
CTS0
I
Clear to Send input pin for UART0.
T3EX
I
Timer3 external capture input pin.
SC2CD
I
SmartCard2 card detect pin.
nWRH
O
EBI high byte write enable output pin
36
PD.6
I/O
General purpose digital I/O pin.
37
PD.7
I/O
General purpose digital I/O pin.
PD.14
I/O
General purpose digital I/O pin.
RXD2
I
PD.15
I/O
General purpose digital I/O pin.
TXD2
O
Data transmitter output pin for UART2.
PC.5
I/O
General purpose digital I/O pin.
MOSI01
I/O
2nd SPI0 MOSI (Master Out, Slave In) pin.
PC.4
I/O
General purpose digital I/O pin.
MISO01
I/O
2nd SPI0 MISO (Master In, Slave Out) pin.
PC.3
I/O
General purpose digital I/O pin.
MOSI00
I/O
1st SPI0 MOSI (Master Out, Slave In) pin.
I2SDO
O
I2S data output.
PC.2
I/O
General purpose digital I/O pin.
MISO00
I/O
1st SPI0 MISO (Master In, Slave Out) pin.
20
35
24
38
Data receiver input pin for UART2.
39
40
41
43
44
45
25
26
27
28
46
47
29
Apr. 8, 2020
21
22
23
24
NUC100/120XXXDN DATASHEET
42
I2S data input.
I2SDI
I
PC.1
I/O
General purpose digital I/O pin.
SPICLK0
I/O
SPI0 serial clock pin.
I2SBCLK
I/O
I2S bit clock pin.
PC.0
I/O
General purpose digital I/O pin.
SPISS00
I/O
1st SPI0 slave select pin.
I2SLRCLK
I/O
I2S left right channel clock.
PE.6
I/O
General purpose digital I/O pin.
PE.5
I/O
General purpose digital I/O pin.
PWM5
I/O
PWM5 output/Capture input.
T1EX
I
Timer1 external capture input pin.
Page 37 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
PB.11
I/O
General purpose digital I/O pin.
TM3
I/O
Timer3 event counter input / toggle output.
PWM4
I/O
PWM4 output/Capture input.
PB.10
I/O
General purpose digital I/O pin.
TM2
I/O
Timer2 event counter input / toggle output.
SPISS01
I/O
2nd SPI0 slave select pin.
PB.9
I/O
General purpose digital I/O pin.
TM1
I/O
Timer1 event counter input / toggle output.
SPISS11
I/O
2nd SPI1 slave select pin.
51
PE.4
I/O
General purpose digital I/O pin.
52
PE.3
I/O
General purpose digital I/O pin.
53
PE.2
I/O
General purpose digital I/O pin.
PE.1
I/O
General purpose digital I/O pin.
PWM7
I/O
PWM7 output/Capture input.
PE.0
I/O
General purpose digital I/O pin.
PWM6
I/O
PWM6 output/Capture input.
PC.13
I/O
General purpose digital I/O pin.
MOSI11
I/O
2nd SPI1 MOSI (Master Out, Slave In) pin.
PC.12
I/O
General purpose digital I/O pin.
MISO11
I/O
2nd SPI1 MISO (Master In, Slave Out) pin.
PC.11
I/O
General purpose digital I/O pin.
MOSI10
I/O
1st SPI1 MOSI (Master Out, Slave In) pin.
PC.10
I/O
General purpose digital I/O pin.
MISO10
I/O
1st SPI1 MISO (Master In, Slave Out) pin.
PC.9
I/O
General purpose digital I/O pin.
SPICLK1
I/O
SPI1 serial clock pin.
PC.8
I/O
General purpose digital I/O pin.
SPISS10
I/O
1st SPI1 slave select pin.
MCLK
O
EBI external clock output pin
PA.15
I/O
General purpose digital I/O pin.
PWM3
I/O
PWM output/Capture input.
I2SMCLK
O
I2S master clock output pin.
48
30
31
49
32
50
54
55
NUC100/120XXXDN DATASHEET
56
57
58
59
60
61
62
33
34
35
36
37
Apr. 8, 2020
25
Page 38 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
26
63
SC2PWR
O
SmartCard2 power pin.
PA.14
I/O
General purpose digital I/O pin.
PWM2
I/O
PWM2 output/Capture input.
SC2RST
O
SmartCard2 reset pin.
AD15
I/O
EBI Address/Data bus bit15
PA.13
I/O
General purpose digital I/O pin.
PWM1
I/O
PWM1 output/Capture input.
SC2CLK
O
SmartCard2 clock pin.
AD14
I/O
EBI Address/Data bus bit14
PA.12
I/O
General purpose digital I/O pin.
PWM0
I/O
PWM0 output/Capture input.
SC2DAT
O
SmartCard2 data pin.
AD13
I/O
EBI Address/Data bus bit13
39
28
65
Pin Type Description
38
27
64
Pin Name
40
Serial wire debugger data pin.
66
41
29
ICE_DAT
I/O
67
42
30
ICE_CLK
I
68
VDD
P
Power supply for I/O ports and LDO source for internal PLL and
digital circuit.
69
VSS
P
Ground pin for digital circuit.
AVSS
AP
Ground pin for analog circuit.
PA.0
I/O
General purpose digital I/O pin.
ADC0
AI
ADC0 analog input.
SC0PWR
O
SmartCard0 power pin.
PA.1
I/O
General purpose digital I/O pin.
ADC1
AI
ADC1 analog input.
SC0RST
O
SmartCard0 reset pin.
AD12
I/O
EBI Address/Data bus bit12
PA.2
I/O
General purpose digital I/O pin.
ADC2
AI
ADC2 analog input.
SC0CLK
O
SmartCard0 clock pin.
AD11
I/O
EBI Address/Data bus bit11
Note: It is recommended to use 100 kΩ pull-up resistor on
ICE_DAT pin
Serial wire debugger clock pin.
71
43
44
31
32
33
72
45
34
73
46
Apr. 8, 2020
Page 39 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
70
Note: It is recommended to use 100 kΩ pull-up resistor on
ICE_CLK pin
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
35
74
NUC100/120XXXDN DATASHEET
I/O
General purpose digital I/O pin.
ADC3
AI
ADC3 analog input.
SC0DAT
O
SmartCard0 data pin.
AD10
I/O
EBI Address/Data bus bit10
PA.4
I/O
General purpose digital I/O pin.
ADC4
AI
ADC4 analog input.
SC1PWR
O
SmartCard1 power pin.
AD9
I/O
EBI Address/Data bus bit9
PA.5
I/O
General purpose digital I/O pin.
ADC5
AI
ADC5 analog input.
SC1RST
O
SmartCard1 reset pin.
AD8
I/O
EBI Address/Data bus bit8
PA.6
I/O
General purpose digital I/O pin.
ADC6
AI
ADC6 analog input.
SC1CLK
I/O
SmartCard1 clock pin.
AD7
I/O
EBI Address/Data bus bit7
PA.7
I/O
General purpose digital I/O pin.
ADC7
AI
ADC7 analog input.
SC1DAT
O
SmartCard1 data pin.
SPISS21
I/O
2nd SPI2 slave select pin.
AD6
I/O
EBI Address/Data bus bit6
VREF
AP
Voltage reference input for ADC.
AVDD
AP
Power supply for internal analog circuit.
PD.0
I/O
General purpose digital I/O pin.
SPISS20
I/O
1st SPI2 slave select pin.
PD.1
I/O
General purpose digital I/O pin.
SPICLK2
I/O
SPI2 serial clock pin.
PD.2
I/O
General purpose digital I/O pin.
MISO20
I/O
1st SPI2 MISO (Master In, Slave Out) pin.
PD.3
I/O
General purpose digital I/O pin.
MOSI20
I/O
1st SPI2 MOSI (Master Out, Slave In) pin.
PD.4
I/O
General purpose digital I/O pin.
MISO21
I/O
2nd SPI2 MISO (Master In, Slave Out) pin.
49
38
77
PA.3
48
37
76
Pin Type Description
47
36
75
Pin Name
50
39
78
51
79
80
52
40
81
82
83
84
85
Apr. 8, 2020
Page 40 of 109
Rev 1.04
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
Pin Name
Pin Type Description
PD.5
I/O
General purpose digital I/O pin.
MOSI21
I/O
2nd SPI2 MOSI (Master Out, Slave In) pin.
PC.7
I/O
General purpose digital I/O pin.
CPN0
AI
Comparator0 negative input pin.
86
41
87
53
SC1CD
42
88
90
I/O
EBI Address/Data bus bit5
PC.6
I/O
General purpose digital I/O pin.
CPP0
AI
Comparator0 positive input pin.
54
92
93
55
56
57
58
59
43
I
SmartCard0 card detect pin.
AD4
I/O
EBI Address/Data bus bit4
PC.15
I/O
General purpose digital I/O pin.
CPN1
AI
Comparator1 negative input pin.
AD3
I/O
EBI Address/Data bus bit3
PC.14
I/O
General purpose digital I/O pin.
CPP1
AI
Comparator1 positive input pin.
AD2
I/O
EBI Address/Data bus bit2
PB.15
I/O
General purpose digital I/O pin.
/INT1
I
External interrupt1 input pin.
T0EX
I
Timer0 external capture input pin.
PF.0
I/O
General purpose digital I/O pin.
XT1_OUT
O
External 4~24 MHz (high speed) crystal output pin.
PF.1
I/O
General purpose digital I/O pin.
44
45
XT1_IN
I
External 4~24 MHz (high speed) crystal input pin.
External reset input: active LOW, with an internal pull-up. Set this
pin low reset chip to initial state.
/RESET
I
61
VSS
P
Ground pin for digital circuit.
62
VDD
P
Power supply for I/O ports and LDO source for internal PLL and
digital circuit.
PF.2
I/O
General purpose digital I/O pin.
PS2DAT
I/O
PS/2 data pin.
PF.3
I/O
General purpose digital I/O pin.
PS2CLK
I/O
PS/2 clock pin.
94
60
95
96
46
Note: It is recommended to use 10 kΩ pull-up resistor and 10 uF
capacitor on nRESET pin.
97
98
Apr. 8, 2020
Page 41 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
91
SmartCard1 card detect pin.
AD5
SC0CD
89
I
NUC100/120xxxDN
Pin No.
LQFP
100-pin
LQFP
64-pin
LQFP
48-pin
99
63
47
100
64
48
Pin Name
Pin Type Description
PVSS
P
PB.8
I/O
STADC
TM0
PLL ground.
I
General purpose digital I/O pin.
ADC external trigger input.
I/O
Timer0 event counter input / toggle output.
Note: Pin Type I = Digital Input, O = Digital Output; AI = Analog Input; P = Power Pin; AP = Analog Power
NUC100/120XXXDN DATASHEET
Apr. 8, 2020
Page 42 of 109
Rev 1.04
NUC100/120xxxDN
5
BLOCK DIAGRAM
5.1 NuMicro® NUC100 Block Diagram
Memory
Timer/PWM
Analog Interface
32-bit Timer x 4
APROM
128/64/32 KB
ARM
LDROM
4 KB
PDM
A
Cortex-M0
50MHz
DataFlash
4 KB
12-bit ADC x 8
RTC
EBI
Watchdog Timer
SRAM
16/8/4 KB
Analog
Comparator x2
PWM/Capture
Timer x 8
Bridge
AHB Bus
Power Control
Clock Control
LDO
PLL
APB Bus
Connectivity
I/O Ports
UART x 3
General Purpose
I/O
SPI x 4
Power On Reset
LVR
Brownout
Detection
High Speed
Oscillator
22.1184 MHz
Low Speed
Oscillator
10 kHz
High Speed
Crystal Osc.
4 ~ 24 MHz
Low Speed
Crystal Osc.
32.768 KHz
I2C x 2
External
Interrupt
I2S
Reset Pin
PS/2
SC x3
NUC100/120XXXDN DATASHEET
®
Figure 5-1 NuMicro NUC100 Block Diagram
Apr. 8, 2020
Page 43 of 109
Rev 1.04
NUC100/120xxxDN
5.2 NuMicro® NUC120 Block Diagram
Memory
ARM
APROM
128/64/32 KB
LDROM
4 KB
DataFlash
4 KB
SRAM
16/8/4 KB
PDM
A
Cortex-M0
50MHz
Timer/PWM
Analog Interface
32-bit Timer x 4
12-bit ADC x 8
RTC
EBI
USB PHY
Watchdog Timer
PWM/Capture
Timer x 8
Bridge
AHB Bus
Power Control
Clock Control
LDO
PLL
APB Bus
Connectivity
I/O Ports
UART x 3
General Purpose
I/O
SPI x 4
I2 C x 2
Power On Reset
LVR
Brownout
Detection
High Speed
Oscillator
22.1184 MHz
High Speed
Crystal Osc.
4 ~ 24 MHz
Low Speed
Crystal Osc.
32.768 KHz
External
Interrupt
I2S
PS/2
Low Speed
Oscillator
10 kHz
Analog
Comparator x2
Reset Pin
SC x3
USB
NUC100/120XXXDN DATASHEET
®
Figure 5-2 NuMicro NUC120 Block Diagram
Apr. 8, 2020
Page 44 of 109
Rev 1.04
NUC100/120xxxDN
6
FUNCTIONAL DESCRIPTION
6.1 ARM® Cortex® -M0 Core
®
The Cortex -M0 processor is a configurable, multistage, 32-bit RISC processor, which has an
AMBA AHB-Lite interface and includes an NVIC component. It also has optional hardware debug
®
functionality. The processor can execute Thumb code and is compatible with other Cortex -M
profile processor. The profile supports two modes -Thread mode and Handler mode. Handler
mode is entered as a result of an exception. An exception return can only be issued in Handler
mode. Thread mode is entered on Reset, and can be entered as a result of an exception return.
Figure 6-1 shows the functional controller of processor.
®
Cortex -M0 Components
®
Cortex -M0 processor
Nested
®
Vectored
Cortex -M0
Interrupt
Processor
Controller
Core
(NVIC)
Interrupts
Wakeup
Interrupt
Controller
(WIC)
Bus Matrix
Debug
Breakpoint
and
Watchpoint
Unit
Debugger
Interface
AHB-Lite
Interface
Debug
Access
Port
(DAP)
Serial Wire or
JTAG Debug Port
Figure 6-1 Functional Controller Diagram
NUC100/120XXXDN DATASHEET
The implemented device provides the following components and features:
Apr. 8, 2020
A low gate count processor:
®
–
ARMv6-M Thumb instruction set
–
Thumb-2 technology
–
ARMv6-M compliant 24-bit SysTick timer
–
A 32-bit hardware multiplier
–
System interface supported with little-endian data accesses
–
Ability to have deterministic, fixed-latency, interrupt handling
–
Load/store-multiples and multicycle-multiplies that can be abandoned and
restarted to facilitate rapid interrupt handling
–
C Application Binary Interface compliant exception model. This is the ARMv6-M,
C Application Binary Interface (C-ABI) compliant exception model that enables
the use of pure C functions as interrupt handlers
–
Low Power Sleep mode entry using Wait For Interrupt (WFI), Wait For Event
(WFE) instructions, or the return from interrupt sleep-on-exit feature
NVIC:
Page 45 of 109
Rev 1.04
NUC100/120xxxDN
–
32 external interrupt inputs, each with four levels of priority
–
Dedicated Non-maskable Interrupt (NMI) input
–
Supports for both level-sensitive and pulse-sensitive interrupt lines
–
Supports Wake-up Interrupt Controller (WIC) and, providing Ultra-low Power
Sleep mode
Debug support
–
Four hardware breakpoints
–
Two watchpoints
–
Program Counter Sampling Register (PCSR) for non-intrusive code profiling
–
Single step and vector catch capabilities
Bus interfaces:
–
Single 32-bit AMBA-3 AHB-Lite system interface that provides simple integration
to all system peripherals and memory
–
Single 32-bit slave port that supports the DAP (Debug Access Port)
NUC100/120XXXDN DATASHEET
Apr. 8, 2020
Page 46 of 109
Rev 1.04
NUC100/120xxxDN
6.2 System Manager
6.2.1
Overview
The system manager provides the functions of system control, power modes, wake-up sources,
reset sources, system memory map, product ID and multi-function pin control. The following
sections describe the functions for
6.2.2
System Reset
System Power Architecture
System Memory Map
System management registers for Part Number ID, chip reset and on-chip controllers
reset, and multi-functional pin control
System Timer (SysTick)
Nested Vectored Interrupt Controller (NVIC)
System Control registers
System Reset
The system reset can be issued by one of the events listed below. These reset event flags can be
read from RSTSRC register to determine the reset source. Hardware reset can reset chip through
peripheral reset signals. Software reset can trigger reset through control registers.
–
Power-on Reset (POR)
–
Low level on the nRESET pin
–
Watchdog Time-out Reset and Window Watchdog Reset (WDT/WWDT Reset)
–
Low Voltage Reset (LVR)
–
Brown-out Detector Reset (BOD Reset)
Software Reset Sources
–
CHIP Reset will reset whole chip by writing 1 to CHIP_RST (IPRSTC1[0])
–
MCU Reset to reboot but keeping the booting setting from APROM or LDROM
by writing 1 to SYSRESETREQ (AIRCR[2])
–
CPU Reset for Cortex -M0 core Only by writing 1 to CPU_RST (IPRSTC1[1])
®
Power-on Reset or CHIP_RST (IPRSTC1[0]) reset the whole chip including all peripherals,
external crystal circuit and BS (ISPCON[1]) bit.
SYSRESETREQ (AIRCR[2]) reset the whole chip including all peripherals, but does not reset
external crystal circuit and BS (ISPCON[1]) bit.
Apr. 8, 2020
Page 47 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
Hardware Reset Sources
NUC100/120xxxDN
Glitch Filter
36 us
nRESET
~50k ohm
@5v
POR_DIS_CODE(PORCR[15:0])
Power-on
Reset
VDD
LVR_EN(BODCR[7])
AVDD
Reset Pulse Width
3.2ms
Low Voltage
Reset
BOD_RSTEN(BODCR[3])
Brown-out
Reset
WDT/WWDT
Reset
System Reset
Reset Pulse Width
64 WDT clocks
CHIP Reset
CHIP_RST(IPRSTC1[0])
MCU Reset
SYSRESETREQ(AIRCR[2])
Software Reset
Reset Pulse Width
2 system clocks
CPU Reset
CPU_RST(IPRSTC1[1])
Figure 6-2 System Reset Resources
®
There are a total of 8 reset sources in the NuMicro family. In general, CPU reset is used to reset
®
®
Cortex -M0 only; the other reset sources will reset Cortex -M0 and all peripherals. However,
there are small differences between each reset source and they are listed in Table 6-1.
NUC100/120XXXDN DATASHEET
Reset Sources
POR
nRESET
WDT
LVR
BOD
CHIP
MCU
CPU
Register
RSTSRC
Bit 0 = 1
Bit 1 = 1
Bit 2 = 1
Bit 3 = 1
Bit 4 = 1
Bit 0 = 1
Bit 5 = 1
Bit 7 = 1
CHIP_RST
0x0
-
-
-
-
-
-
-
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
-
Reload
from
CONFIG0
Reload
from
CONFIG0
-
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
-
(PWRCON[0])
WDT_EN
0x1
-
0x1
-
-
0x1
-
-
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
-
(CLKSEL0[2:0])
WDT_S
0x3
0x3
-
-
-
-
-
-
(IPRSTC1[0])
BOD_EN
(BODCR[0])
BOD_VL
(BODCR[2:1])
BOD_RSTEN
(BODCR[3])
XTL12M_EN
(APBCLK[0])
HCLK_S
Apr. 8, 2020
Page 48 of 109
Rev 1.04
NUC100/120xxxDN
(CLKSEL1[1:0])
XTL12M_STB
0x0
-
-
-
-
-
-
-
0x0
-
-
-
-
-
-
-
0x0
-
-
-
-
-
-
-
0x0
-
-
-
-
-
-
-
0x0
-
-
-
-
-
-
-
0x0
0x0
0x0
0x0
0x0
0x0
0x0
-
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
-
-
(WTCR[7])
WTCR
0x0700
0x0700
0x0700
0x0700
0x0700
0x0700
-
-
WTCRALT
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
-
-
WWDTRLD
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
-
-
WWDTCR
0x3F0800
0x3F0800
0x3F0800
0x3F0800
0x3F0800
0x3F0800
-
-
WWDTSR
0x0000
0x0000
0x0000
0x0000
0x0000
0x0000
-
-
WWDTCVR
0x3F
0x3F
0x3F
0x3F
0x3F
0x3F
-
-
BS
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
-
-
DFBADR
Reload
from
CONFIG1
Reload
from
CONFIG1
Reload
from
CONFIG1
Reload
from
CONFIG1
Reload
from
CONFIG1
Reload
from
CONFIG1
-
-
CBS
(ISPSTA[2:1))
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
Reload
from
CONFIG0
-
-
VECMAP
(ISPSTA[20:9])
Reload
base on
CONFIG0
Reload
base on
CONFIG0
Reload
base on
CONFIG0
Reload
base on
CONFIG0
Reload
base on
CONFIG0
Reload
base on
CONFIG0
-
-
Other Peripheral
Registers
Reset Value
FMC Registers
Reset Value
(CLKSTATUS[0])
XTL32K_STB
(CLKSTATUS[1])
PLL_STB
(CLKSTATUS[2])
OSC10K_STB
(CLKSTATUS[3])
OSC22M_STB
(CLKSTATUS[4])
CLK_SW_FAIL
(CLKSTATUS[7])
WTE
(ISPCON[1])
Note: ‘-‘ means that the value of register keeps original setting.
Table 6-1 Reset Value of Registers
Apr. 8, 2020
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NUC100/120XXXDN DATASHEET
-
NUC100/120xxxDN
6.2.2.1
nRESET Reset
The nRESET reset means to generate a reset signal by pulling low nRESET pin, which is an
asynchronous reset input pin and can be used to reset system at any time. When the nRESET
voltage is lower than 0.2 VDD and the state keeps longer than 36 us (glitch filter), chip will be
reset. The nRESET reset will control the chip in reset state until the nRESET voltage rises above
0.7 VDD and the state keeps longer than 36 us (glitch filter). The RSTS_RESET (RSTSRC[1]) will
be set to 1 if the previous reset source is nRESET reset. Figure 6-3 shows the nRESET reset
waveform.
nRESET
0.7 VDD
36 us
0.2 VDD
SS
36 us
nRESET Reset
SS
Figure 6-3 nRESET Reset Waveform
6.2.2.2
Power-On Reset (POR)
NUC100/120XXXDN DATASHEET
The Power-on reset (POR) is used to generate a stable system reset signal and forces the
system to be reset when power-on to avoid unexpected behavior of MCU. When applying the
power to MCU, the POR module will detect the rising voltage and generate reset signal to system
until the voltage is ready for MCU operation. At POR reset, the RSTS_POR (RSTSRC[0]) will be
set to 1 to indicate there is a POR reset event. The RSTS_POR (RSTSRC[0]) bit can be cleared
by writing 1 to it. Figure 6-4 shows the waveform of Power-On reset.
VPOR
0.1V
VDD
Power On
Reset
Figure 6-4 Power-on Reset (POR) Waveform
6.2.2.3
Low Voltage Reset (LVR)
If the Low Voltage Reset function is enabled by setting the Low Voltage Reset Enable Bit
LVR_EN (BODCR[7]) to 1, after 100us delay, LVR detection circuit will be stable and the LVR
function will be active. Then LVR function will detect AVDD during system operation. When the
Apr. 8, 2020
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NUC100/120xxxDN
AVDD voltage is lower than VLVR and the state keeps longer than De-glitch time (16*HCLK cycles),
chip will be reset. The LVR reset will control the chip in reset state until the AVDD voltage rises
above VLVR and the state keeps longer than De-glitch time. The RSTS_RESET (RSTSRC[1]) will
be set to 1 if the previous reset source is nRESET reset. Figure 6-5 shows the Low Voltage Reset
waveform.
AVDD
VLVR
T1
(= 8
2
1
1
Don’t care
A
UART_CLK / (A+2), A must >=3
Table 6-6 UART Baud Rate Equation
System Clock = Internal 22.1184 MHz High Speed Oscillator
Mode 0
Mode 1
Mode 2
Baud Rate
921600
Apr. 8, 2020
Parameter
Register
Parameter
Register
Parameter
Register
x
x
A=0,B=11
0x2B00_0000
A=22
0x3000_0016
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0x2F00_0001
460800
A=1
0x0000_0001
A=1,B=15
A=2,B=11
230400
A=4
0x0000_0004
A=4,B=15
A=6,B=11
0x2B00_0006
115200
A=10
0x0000_000A
A=10,B=15
A=14,B=11
0x2B00_000E
57600
A=22
0x0000_0016
A=22,B=15
A=30,B=11
38400
A=34
0x0000_0022
19200
A=70
9600
A=142
4800
A=286
A=46
0x3000_002E
A=94
0x3000_005E
A=190
0x3000_00BE
0x2F00_0016
0x2B00_001E
A=382
0x3000_017E
A=62,B=8
A=46,B=11
A=34,B=15
0x2800_003E
0x2B00_002E
0x2F00_0022
A=574
0x3000_023E
0x0000_0046
A=126,B=8
A=94,B=11
A=70,B=15
0x2800_007E
0x2B00_005E
0x2F00_0046
A=1150
0x3000_047E
0x0000_008E
A=254,B=8
A=190,B=11
A=142,B=15
0x2B00_00BE
A=2302
0x3000_08FE
A=4606
0x3000_11FE
0x0000_011E
A=510,B=8
A=382,B=11
A=286,B=15
0x2B00_0002
0x2F00_0004
0x2F00_000A
0x2800_00FE
0x2F00_008E
0x2800_01FE
0x2B00_017E
0x2F00_011E
Table 6-7 UART Baud Rate Setting Table
UART Mode : MCR[LEV_RTS] = 1
MCR [RTS]
MCR [RTS_ST]
UART Mode : MCR[LEV_RTS] = 0
MCR [RTS]
MCR [RTS_ST]
Figure 6-16 UART nRTS Auto-Flow Control Trigger Level
The UART controllers also provides Serial IrDA (SIR, Serial Infrared) function (User must set
IrDA_EN (UA_FUN_SEL [1]) to enable IrDA function). The SIR specification defines a short-range
infrared asynchronous serial transmission mode with 1 start bit, 8 data bits, and 1 stop bit. The
maximum data rate supports up to 115.2 Kbps (half duplex). The IrDA SIR block contains an IrDA
Apr. 8, 2020
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The UART0 and UART1 controllers support the auto-flow control function that uses two low-level
signals, /CTS (clear-to-send) and /RTS (request-to-send), to control the flow of data transfer
between the chip and external devices (e.g. Modem). When auto-flow is enabled, the UART is not
allowed to receive data until the UART asserts /RTS to external device. When the number of
bytes in the RX FIFO equals the value of RTS_TRI_LEV (UA_FCR [19:16]), the /RTS is deasserted. The UART sends data out when UART controller detects /CTS is asserted from external
device. If a valid asserted /CTS is not detected the UART controller will not send data out.
NUC100/120xxxDN
SIR Protocol encoder/decoder. The IrDA SIR Protocol encoder/decoder is half-duplex only. So it
cannot transmit and receive data at the same time. The IrDA SIR physical layer specifies a
minimum 10ms transfer delay between transmission and reception, and this delay feature must
be implemented by software.
The alternate function of UART controllers is LIN (Local Interconnect Network) function. The LIN
mode is selected by setting the UA_FUN_SEL[1:0] to ’01’. In LIN mode, 1 start bit and 8 data bits
format with 1 stop bit are required in accordance with the LIN standard.
®
For NuMicro NUC100 series, another alternate function of UART controllers is RS-485 9-bit
mode, and direction control provided by /RTS pin or can program GPIO (PB.2 for UART0_nRTS
and PB.6 for UART1_nRTS) to implement the function by software. The RS-485 mode is selected
by setting the UA_FUN_SEL register to select RS-485 function. The RS-485 transceiver control is
implemented using the /RTS control signal from an asynchronous serial port to enable the RS485 transceiver. In RS-485 mode, many characteristics of the receiving and transmitting are same
as UART.
6.14.2 Features
NUC100/120XXXDN DATASHEET
Full duplex, asynchronous communications
Separates receive / transmit 64/16/16 bytes (UART0/UART1/UART2) entry FIFO for data
payloads
Supports hardware auto flow control/flow control function (CTS, RTS) and programmable
RTS flow control trigger level (UART0 and UART1 support)
Programmable receiver buffer trigger level
Supports programmable baud-rate generator for each channel individually
Supports CTS wake-up function (UART0 and UART1 support)
Supports 7-bit receiver buffer time-out detection function
UART0/UART1 can through DMA channels to receive/transmit data
Programmable transmitting data delay time between the last stop and the next start bit by
setting UA_TOR [DLY] register
Supports break error, frame error, parity error and receive / transmit buffer overflow detect
function
Fully programmable serial-interface characteristics
–
Programmable data bit length, 5-, 6-, 7-, 8-bit character
–
Programmable parity bit, even, odd, no parity or stick parity bit generation and
detection
–
Programmable stop bit length, 1, 1.5, or 2 stop bit generation
IrDA SIR function mode
–
Supports 3-/16-bit duration for normal mode
LIN function mode
–
Supports LIN master/slave mode
–
Supports programmable break generation function for transmitter
–
Supports break detect function for receiver
RS-485 function mode.
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–
Supports RS-485 9-bit mode
–
Supports hardware or software direct enable control provided by RTS pin
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6.15 Smart Card Host Interface (SC)
6.15.1 Overview
The Smart Card Interface controller (SC controller) is based on ISO/IEC 7816-3 standard and fully
compliant with PC/SC Specifications. It also provides status of card insertion/removal.
6.15.2 Features
ISO7816-3 T=0, T=1 compliant
EMV2000 compliant
Supports up to three ISO7816-3 ports
Separates receive/ transmit 4 byte entry buffer for data payloads
Programmable transmission clock frequency
Programmable receiver buffer trigger level
Programmable guard time selection (11 ETU ~ 266 ETU)
One 24-bit and two 8-bit time-out counters for Answer to Request (ATR) and waiting
times processing
Supports auto inverse convention function
Supports transmitter and receiver error retry and error retry number limitation function
Supports hardware activation sequence process
Supports hardware warm reset sequence process
Supports hardware deactivation sequence process
Supports hardware auto deactivation sequence when detecting the card removal
NUC100/120XXXDN DATASHEET
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6.16 PS/2 Device Controller (PS2D)
6.16.1 Overview
The PS/2 device controller provides a basic timing control for PS/2 communication. All
communication between the device and the host is managed through the CLK and DATA pins.
Unlike PS/2 keyboard or mouse device controller, the receive/transmit code needs to be
translated as meaningful code by firmware. The device controller generates the CLK signal after
receiving a “Request to Send” state, but host has ultimate control over communication. Data of
DATA line sent from the host to the device is read on the rising edge and sent from the device to
the host is change after rising edge. A 16 bytes FIFO is used to reduce CPU intervention.
Software can select 1 to 16 bytes for a continuous transmission.
6.16.2 Features
Host communication inhibit and Request to Send state detection
Reception frame error detection
Programmable 1 to 16 bytes transmit buffer to reduce CPU intervention
Double buffer for data reception
Software override bus
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6.17 I2C Serial Interface Controller (I2C)
6.17.1 Overview
I2C is a two-wire, bidirectional serial bus that provides a simple and efficient method of data
exchange between devices. The I2C standard is a true multi-master bus including collision
detection and arbitration that prevents data corruption if two or more masters attempt to control
the bus simultaneously.
Data is transferred between a Master and a Slave. Data bits transfer on the SCL and SDA lines
are synchronously on a byte-by-byte basis. Each data byte is 8-bit long. There is one SCL clock
pulse for each data bit with the MSB being transmitted first, and an acknowledge bit follows each
transferred byte. Each bit is sampled during the high period of SCL; therefore, the SDA line may
be changed only during the low period of SCL and must be held stable during the high period of
SCL. A transition on the SDA line while SCL is high is interpreted as a command (START or
STOP). Please refer to Figure 6-17 for more detailed I2C BUS Timing.
STOP
Repeated
START
START
STOP
SDA
tBUF
tLOW
SCL
tr
tHIGH
tHD;STA
tHD;DAT
tf
tSU;DAT
tSU;STA
tSU;STO
Figure 6-17 I2C Bus Timing
NUC100/120XXXDN DATASHEET
The device’s on-chip I2C logic provides a serial interface that meets the I2C bus standard mode
specification. The I2C port handles byte transfers autonomously. To enable this port, the bit ENS1
in I2CON should be set to '1'. The I2C hardware interfaces to the I2C bus via two pins: SDA and
SCL. Pull-up resistor is needed for I2C operation as the SDA and SCL are open drain pins. When
I/O pins are used as I2C ports, user must set the pins function to I2C in advance.
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6.17.2 Features
The I2C bus uses two wires (SDA and SCL) to transfer information between devices connected to
the bus. The main features of the bus include:
Master/Slave mode
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 allowing devices with different bit rates to communicate
via one serial bus
Serial clock synchronization used as a handshake mechanism to suspend and
resume serial transfer
A built-in 14-bit time-out counter requesting the I2C interrupt if the I2C bus hangs up
and timer-out counter overflows
External pull-up resistors needed for high output
Programmable clocks allowing for versatile rate control
Supports 7-bit addressing mode
Supports multiple address recognition (four slave addresses with mask option)
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6.18 Serial Peripheral Interface (SPI)
6.18.1 Overview
The Serial Peripheral Interface (SPI) is a synchronous serial data communication protocol that
operates in full duplex mode. Devices communicate in Master/Slave mode with the 4-wire bi®
direction interface. The NuMicro NUC100 series contains up to four sets of SPI controllers
performing a serial-to-parallel conversion on data received from a peripheral device, and a
parallel-to-serial conversion on data transmitted to a peripheral device. Each set of SPI controller
can be configured as a master or a slave device.
The SPI controller supports the variable serial clock function for special applications and 2-bit
Transfer mode to connect 2 off-chip slave devices at the same time. This controller also supports
the PDMA function to access the data buffer and also supports Dual I/O Transfer mode.
6.18.2 Features
NUC100/120XXXDN DATASHEET
Up to four sets of SPI controllers
Supports Master or Slave mode operation
Supports 2-bit Transfer mode
Supports Dual I/O Transfer mode
Configurable bit length of a transfer word from 8 to 32-bit
Provides separate 8-layer depth transmit and receive FIFO buffers
Supports MSB first or LSB first transfer sequence
Two slave select lines in Master mode
Supports the byte reorder function
Supports Byte or Word Suspend mode
Variable output serial clock frequency in Master mode
Supports PDMA transfer
Supports 3-wire, no slave select signal, bi-direction interface
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6.19 I2S Controller (I2S)
6.19.1 Overview
2
The I2S controller consists of I S protocol to interface with external audio CODEC. Two 8-word
deep FIFO for read path and write path respectively and is capable of handling 8-, 16-, 24- and
32-bit word sizes. PDMA controller handles the data movement between FIFO and memory.
6.19.2 Features
Operated as either Master or Slave
Capable of handling 8-, 16-, 24- and 32-bit word sizes
Supports Mono and stereo audio data
Supports I2S and MSB justified data format
Provides two 8-word FIFO data buffers, one for transmitting and the other for receiving
Generates interrupt requests when buffer levels cross a programmable boundary
Two PDMA requests, one for transmitting and the other for receiving
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6.20 USB Device Controller (USB)
6.20.1 Overview
There is one set of USB 2.0 full-speed device controller and transceiver in this device. It is
compliant with USB 2.0 full-speed device specification and supports control/bulk/interrupt/
isochronous transfer types.
In this device controller, there are two main interfaces: the APB bus and USB bus which comes
from the USB PHY transceiver. For the APB bus, the CPU can program control registers through
it. There are 512 bytes internal SRAM as data buffer in this controller. For IN or OUT transfer, it is
necessary to write data to SRAM or read data from SRAM through the APB interface or SIE. User
needs to set the effective starting address of SRAM for each endpoint buffer through “buffer
segmentation register (USB_BUFSEGx)”.
There are 6 endpoints in this controller. Each of the endpoint can be configured as IN or OUT
endpoint. All the operations including Control, Bulk, Interrupt and Isochronous transfer are
implemented in this block. The block of ENDPOINT CONTROL is also used to manage the data
sequential synchronization, endpoint states, current start address, transaction status, and data
buffer status for each endpoint.
There are four different interrupt events in this controller. They are the wake-up function, device
plug-in or plug-out event, USB events, like IN ACK, OUT ACK etc, and BUS events, like suspend
and resume, etc. Any event will cause an interrupt, and users just need to check the related event
flags in interrupt event status register (USB_INTSTS) to acknowledge what kind of interrupt
occurring, and then check the related USB Endpoint Status Register (USB_EPSTS) to
acknowledge what kind of event occurring in this endpoint.
A software-disable function is also supported for this USB controller. It is used to simulate the
disconnection of this device from the host. If user enables DRVSE0 bit (USB_DRVSE0), the USB
controller will force the output of USB_DP and USB_DM to level low and its function is disabled.
After disable the DRVSE0 bit, host will enumerate the USB device again.
Please refer to Universal Serial Bus Specification Revision 1.1
NUC100/120XXXDN DATASHEET
6.20.2 Features
This Universal Serial Bus (USB) performs a serial interface with a single connector type for
attaching all USB peripherals to the host system. Following is the feature list of this USB.
Compliant with USB 2.0 Full-Speed specification
Provides 1 interrupt vector with 4 different interrupt events (WAKEUP, FLDET, USB
and BUS)
Supports Control/Bulk/Interrupt/Isochronous transfer type
Supports suspend function when no bus activity existing for 3 ms
Provides 6 endpoints for configurable Control/Bulk/Interrupt/Isochronous transfer
types and maximum 512 bytes buffer size
Provides remote wake-up capability
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6.21 Analog-to-Digital Converter (ADC)
6.21.1 Overview
®
The NuMicro NUC100 series contains one 12-bit successive approximation analog-to-digital
converters (SAR A/D converter) with 8 input channels. The A/D converter supports three
operation modes: single, single-cycle scan and continuous scan mode. The A/D converter can be
started by software, PWM Center-aligned trigger and external STADC pin.
6.21.2 Features
Analog input voltage range: 0~VREF
12-bit resolution and 10-bit accuracy is guaranteed
Up to 8 single-end analog input channels or 4 differential analog input channels
Up to 760 kSPS conversion rate as ADC clock frequency is 16 MHz (chip working at 5V)
Three operating modes
–Single mode: A/D conversion is performed one time on a specified channel
–Single-cycle scan mode: A/D conversion is performed one cycle on all specified
channels with the sequence from the smallest numbered channel to the largest
numbered channel
–Continuous scan mode: A/D converter continuously performs Single-cycle scan mode
until software stops A/D conversion
An A/D conversion can be started by:
–Writing 1 to ADST bit through software
–PWM Center-aligned trigger
–External pin STADC
Conversion results are held in data registers for each channel with valid and overrun
indicators
Conversion result can be compared with specify value and user can select whether to
generate an interrupt when conversion result matches the compare register setting
Channel 7 supports 3 input sources: external analog voltage, internal Band-gap voltage,
and internal temperature sensor output
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NUC100/120xxxDN
6.22 Analog Comparator (ACMP)
6.22.1 Overview
®
The NuMicro NUC100 series contains two comparators which can be used in a number of
different configurations. The comparator output is logic 1 when positive input voltage is greater
than negative input voltage; otherwise the output is logic 0. Each comparator can be configured to
cause an interrupt when the comparator output value changes.
6.22.2 Features
Analog input voltage range: 0~ VDDA
Supports Hysteresis function
Supports optional internal reference voltage input at negative end for each comparator
NUC100/120XXXDN DATASHEET
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7
APPLICATION CIRCUIT
DVCC
[1]
AVCC
SPISS00
SPICLK0
MISO00
AVDD
DVCC
Power
FB
VDD
CS
CLK
MISO
MOSI
MOSI00
VDD
SPI Device
VSS
0.1uF
0.1uF
VSS
DVCC
FB
DVCC
AVSS
4.7K
DVCC
4.7K
CLK
I2C0SCL
VDD
I2C Device
100K
VDD
ICE_CLK
ICE_DAT
/RESET
VSS
SWD
Interface
I2C0SDA
DIO
Smart Card
VCC
20p
XT1_IN
Crystal
VSS
NUC1xx
Series
USB PORT
VBUS
33
D+
33
4~24 MHz
crystal
20p
D-
XT1_OUT
VSS
DVCC
Reset
Circuit
10K
/RESET
10uF/25V
RS232 Transceiver
ROUT
TXD
TIN
RIN
TOUT
UART
1uF
LDO
Note: For the SPI device, the chip supply voltage
must be equal to SPI device working voltage. For
example, when the SPI Flash working voltage is
3.3 V, the NUC1xx chip supply voltage must also
be 3.3V.
Note 1: It is recommended to use 100 kΩ pull-up resistor on both ICE_DAT and ICE_CLK pin.
Note 2: It is recommended to use 10 kΩ pull-up resistor and 10 uF capacitor on nRESET pin.
Apr. 8, 2020
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NUC100/120XXXDN DATASHEET
LDO
RXD
PC COM Port
NUC100/120xxxDN
8
8.1
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings
SYMBOL
PARAMETER
MIN.
MAX
UNIT
VDDVSS
-0.3
+7.0
V
VIN
VSS-0.3
VDD+0.3
V
1/tCLCL
4
24
MHz
TA
-40
+85
C
TST
-55
+150
C
-
120
mA
Maximum Current out of VSS
120
mA
Maximum Current sunk by a I/O pin
35
mA
Maximum Current sourced by a I/O pin
35
mA
Maximum Current sunk by total I/O pins
100
mA
Maximum Current sourced by total I/O pins
100
mA
DC Power Supply
Input Voltage
Oscillator Frequency
Operating Temperature
Storage Temperature
Maximum Current into VDD
Note: Exposure to conditions beyond those listed under absolute maximum ratings may adversely affects the lift and reliability
of the device.
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8.2
DC Electrical Characteristics
(VDD-VSS=5.5 V, TA = 25C, FOSC = 50 MHz unless otherwise specified.)
SPECIFICATION
PARAMETER
SYM.
TEST CONDITIONS
MIN.
Operation Voltage
Power Ground
LDO Output Voltage
Analog Operating Voltage
VDD
VSS
AVSS
VLDO
TYP.
2.5
MAX.
UNIT
5.5
V
-0.3
1.62
VDD = 2.5V ~ 5.5V up to 50 MHz
V
1.8
1.98
V
VDD > 2.5V
When system used analog
function, please refer to chapter 8.4
for corresponding analog operating
voltage
AVDD
VDD
V
IDD1
34
mA
Operating Current
VDD
XTAL
PLL
All IP
5.5V
12 MHz
V
V
Normal Run Mode
IDD2
15
mA
5.5V
12 MHz
V
X
at 50 MHz
IDD3
32
mA
3.3V
12 MHz
V
V
IDD4
14
mA
3.3V
12 MHz
V
X
VDD
XTAL
PLL
All IP
IDD5
8.5
mA
5.5V
12 MHz
X
V
Normal Run Mode
IDD6
3.6
mA
5.5V
12 MHz
X
X
at 12 MHz
IDD7
7.5
mA
3.3V
12 MHz
X
V
IDD8
2.6
mA
3.3V
12 MHz
X
X
VDD
XTAL
PLL
All IP
IDD9
3.6
mA
5.5V
4 MHz
X
V
Operating Current
Normal Run Mode
IDD10
2
mA
5.5V
4 MHz
X
X
at 4 MHz
IDD11
2.8
mA
3.3V
4 MHz
X
V
IDD12
1.2
mA
3.3V
4 MHz
X
X
VDD
XTAL
PLL
All IP
IDD13
141
5.5V
32.768
kHz
X
V
A
Operating Current
Normal Run Mode
at 32.768 kHz
Apr. 8, 2020
IDD14
129
A
5.5V
32.768
kHz
X
X
IDD15
138
A
3.3V
32.768
kHz
X
V
Page 93 of 109
Rev 1.04
NUC100/120XXXDN DATASHEET
Operating Current
NUC100/120xxxDN
SPECIFICATION
PARAMETER
SYM.
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
IDD16
125
A
IDD17
125
A
Operating Current
3.3V
32.768
kHz
X
X
VDD
LIRC
PLL
All IP
5.5V
10 kHz
X
V
Normal Run Mode
IDD18
120
A
5.5V
10 kHz
X
X
at 10 kHz
IDD19
125
A
3.3V
10 kHz
X
V
IDD20
120
A
3.3V
10 kHz
X
X
VDD
XTAL
PLL
All IP
IIDLE1
28
mA
5.5V
12 MHz
V
V
Operating Current
Idle Mode
IIDLE2
10
mA
5.5V
12 MHz
V
X
at 50 MHz
IIDLE3
27
mA
3.3V
12 MHz
V
V
IIDLE4
9
mA
3.3V
12 MHz
V
X
VDD
XTAL
PLL
All IP
IIDLE5
7.5
mA
5.5V
12 MHz
X
V
Operating Current
NUC100/120XXXDN DATASHEET
Idle Mode
IIDLE6
2.4
mA
5.5V
12 MHz
X
X
at 12 MHz
IIDLE7
6.5
mA
3.3V
12 MHz
X
V
IIDLE8
1.5
mA
3.3V
12 MHz
X
X
VDD
XTAL
PLL
All IP
IIDLE9
3.3
mA
5.5V
4 MHz
X
V
Operating Current
Idle Mode
IIDLE10
1.7
mA
5.5V
4 MHz
X
X
at 4 MHz
IIDLE11
2.4
mA
3.3V
4 MHz
X
V
IIDLE12
0.8
mA
3.3V
4 MHz
X
X
VDD
XTAL
PLL
All IP
5.5V
32.768
kHz
X
V
IIDLE13
133
A
Operating Current
Idle Mode
at 32.768 kHz
Operating Current
Apr. 8, 2020
IIDLE14
120
A
5.5V
32.768
kHz
X
X
IIDLE15
133
A
3.3V
32.768
kHz
X
V
IIDLE16
120
A
3.3V
32.768
kHz
X
X
IIDLE13
122
A
VDD
LIRC
PLL
All IP
Page 94 of 109
Rev 1.04
NUC100/120xxxDN
SPECIFICATION
PARAMETER
SYM.
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
Idle Mode
at 10 kHz
(Deep Sleep Mode)
Input Current PA, PB, PC,
PD, PE, PF (Quasibidirectional mode)
[1]
10 kHz
X
V
IIDLE14
118
A
5.5V
10 kHz
X
X
IIDLE15
122
A
3.3V
10 kHz
X
V
IIDLE16
118
A
3.3V
10 kHz
X
X
VDD
BOD function
15
A
RTC
IPWD1
5.5V
X
X
Standby Current
Power-down Mode
5.5V
IPWD2
15
A
5.5V
X
X
IPWD3
17
A
3.3V
X
X
IPWD4
17
A
3.3V
X
X
IIN1
-50
-60
A
VDD = 5.5V, VIN = 0V or VIN=VDD
Input Current at /RESET
IIN2
-55
-45
-30
A
VDD = 3.3V, VIN = 0.45V
Input Leakage Current PA,
PB, PC, PD, PE, PF
ILK
-2
-
+2
A
VDD = 5.5V, 0
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