Freescale Semiconductor
Document Number: MPC852TEC
Rev. 4, 09/2007
Technical Data
MPC852T PowerQUICC™
Hardware Specifications
This document contains detailed information for the
MPC852T power considerations, DC/AC electrical
characteristics, AC timing specifications, and pertinent
electrical and physical characteristics. For information about
functional characteristics of the processor, refer to the
MPC866 PowerQUICC™ Family Reference Manual
(MPC866UM). The MPC852T contains a PowerPC™
processor core built on Power Architecture™ technology.
To locate published errata or updates for this document, refer
to the MPC852T product summary page on our website
listed on the back cover of this document or, contact your
local Freescale sales office.
© Freescale Semiconductor, Inc., 2004, 2007. All rights reserved.
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Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Maximum Tolerated Ratings . . . . . . . . . . . . . . . . . . . 6
Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . 7
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermal Calculation and Measurement . . . . . . . . . . . 9
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Power Supply and Power Sequencing . . . . . . . . . . . 12
Mandatory Reset Configurations . . . . . . . . . . . . . . . 12
Layout Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Bus Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . . 14
IEEE 1149.1 Electrical Specifications . . . . . . . . . . . 42
CPM Electrical Characteristics . . . . . . . . . . . . . . . . . 44
FEC Electrical Characteristics . . . . . . . . . . . . . . . . . 57
Mechanical Data and Ordering Information . . . . . . . 60
Document Revision History . . . . . . . . . . . . . . . . . . . 76
Overview
1
Overview
The MPC852T is a 0.18-micron derivative of the MPC860 PowerQUICC™ family, and can operate up to
100 MHz on the MPC8xx core with a 66-MHz external bus. The MPC852T has a 1.8-V core and a 3.3-V
I/O operation with 5-V TTL compatibility. The MPC852T integrated communications controller is a
versatile one-chip integrated microprocessor and peripheral combination that can be used in a variety of
controller applications. It particularly excels in Ethernet control applications, including CPE equipment,
Ethernet routers and hubs, VoIP clients, and WiFi access points.
The MPC852T is a PowerPC architecture-based derivative of the MPC860 Quad Integrated
Communications Controller (PowerQUICC). The CPU on the MPC852T is a MPC8xx core, a 32-bit
microprocessor that implements the PowerPC architecture, incorporating memory management units
(MMUs) and instruction and data caches. The MPC852T is the subset of this family of devices.
2
Features
The MPC852T is comprised of three modules that each use a 32-bit internal bus: an MPC8xx core, system
integration unit (SIU), and communication processor module (CPM).
The following list summarizes the key MPC852T features:
• Embedded MPC8xx core up to 100 MHz
• Maximum frequency operation of the external bus is 66 MHz
— 50/66 MHz core frequencies support both 1:1 and 2:1 modes
— 80/100 MHz core frequencies support 2:1 mode only
• Single-issue, 32-bit core (compatible with the PowerPC architecture definition) with thirty-two
32-bit general-purpose registers (GPRs)
— The core performs branch prediction with conditional prefetch, without conditional execution.
— 4-Kbyte data cache and 4-Kbyte instruction cache
– 4-Kbyte instruction caches is two-way, set-associative with 128 sets
– 4-Kbyte data cachesis two-way, set-associative with 128 sets
– Cache coherency for both instruction and data caches is maintained on 128-bit (4-word)
cache blocks
– Caches are physically addressed, implement a least recently used (LRU) replacement
algorithm, and are lockable on a cache block basis
— MMUs with 32-entry TLB, fully associative instruction, and data TLBs
— MMUs support multiple page sizes of 4, 16, and 512 Kbytes, and 8 Mbytes; 16 virtual address
spaces, and 16 protection groups
• Up to 32-bit data bus (dynamic bus sizing for 8, 16, and 32 bits)
• 32 address lines
• Memory controller (eight banks)
— Contains complete dynamic RAM (DRAM) controller
— Each bank can be a chip select or RAS to support a DRAM bank
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Freescale Semiconductor
Features
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•
•
•
•
— Up to 30 wait states programmable per memory bank
— Glueless interface to DRAM, SIMMS, SRAM, EPROMs, Flash EPROMs, and other memory
devices
— DRAM controller-programmable to support most size and speed memory interfaces
— Four CAS lines, four WE lines, and one OE line
— Boot chip-select available at reset (options for 8-, 16-, or 32-bit memory)
— Variable block sizes (32 Kbytes–256 Mbytes)
— Selectable write protection
— On-chip bus arbitration logic
Fast Ethernet controller (FEC)
General-purpose timers
— Two 16-bit timers or one 32-bit timer
— Gate mode can enable or disable counting
— Interrupt can be masked on reference match and event capture
System integration unit (SIU)
— Bus monitor
— Software watchdog
— Periodic interrupt timer (PIT)
— Low-power stop mode
— Clock synthesizer
— Decrementer and time base
— Reset controller
— IEEE 1149.1™ standard test access port (JTAG)
Interrupts
— Seven external interrupt request (IRQ) lines
— Seven port pins with interrupt capability
— Eighteen internal interrupt sources
— Programmable priority between SCCs
— Programmable highest-priority request
Communications processor module (CPM)
— RISC controller
— Communication-specific commands (for example, GRACEFUL STOP TRANSMIT, ENTER HUNT
MODE, and RESTART TRANSMIT)
— Supports continuous mode transmission and reception on all serial channels
— 8-Kbytes of dual-port RAM
— Eight serial DMA (SDMA) channels
— Three parallel I/O registers with open-drain capability
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
3
Features
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Two baud rate generators
— Independent (can be connected toany SCC3/4 or SMC1)
— Allows changes during operation
— Autobaud support option
Two SCCs (serial communication controllers)
— Ethernet/IEEE 802.3® standard optional on SCC3 and SCC4, supporting full 10-Mbps
operation
— HDLC/SDLC
— HDLC bus (implements an HDLC-based local area network (LAN))
— Universal asynchronous receiver transmitter (UART)
— Totally transparent (bit streams)
— Totally transparent (frame-based with optional cyclic redundancy check (CRC))
One SMC (serial management channel)
— UART
One SPI (serial peripheral interface)
— Supports master and slave modes
— Supports multimaster operation on the same bus
PCMCIA interface
— Master (socket) interface, release 2.1 compliant
— Supports one independent PCMCIA socket; 8-memory or I/O windows supported
Debug interface
— Eight comparators: four operate on instruction address, two operate on data address, and two
operate on data
— Supports conditions: = ≠ < >
— Each watchpoint can generate a break point internally
Normal high and normal low power modes to conserve power
1.8 V core and 3.3-V I/O operation with 5-V TTL compatibility. Refer to Table 5 for a listing of
the 5-V tolerant pins.
Figure 1 shows the MPC852T block diagram.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
4
Freescale Semiconductor
Features
4-Kbyte
Instruction
Instruction Cache
Bus
Embedded
MPC8xx
Processor
Core
System Interface Unit (SIU)
Unified
Bus
Instruction MMU
32-Entry ITLB
Load/Store
Bus
Memory Controller
External
Internal
Bus Interface Bus Interface
Unit
Unit
4-Kbyte
Data Cache
System Functions
Data MMU
32-Entry DTLB
PCMCIA-ATA Interface
Fast Ethernet
Controller
DMAs
FIFOs
10/100
Base-T
Media Access
Control
Parallel I/O
2 Baud Rate
Generators
2
Interrupt
8-Kbyte
Timers Controllers Dual-Port RAM
32-Bit RISC Controller
and Program
ROM
Timers
1 Virtual
IDMA
and
8 Serial
DMA
Channels
MII
SCC3
SCC4
SMC1
SPI
Serial Interface (NMSI)
Figure 1. MPC852T Block Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
5
Maximum Tolerated Ratings
3
Maximum Tolerated Ratings
This section provides the maximum tolerated voltage and temperature ranges for the MPC852T. Table 1
provides the maximum ratings and operating temperatures.
Table 1. Maximum Tolerated Ratings
Rating
Symbol
Supply voltage1
Value
Unit
VDDL (core voltage)
– 0.3 to 3.4
V
VDDH (I/O voltage)
– 0.3 to 4
V
– 0.3 to 3.4
V
100
mV
VDDSYN
Difference between VDDL to VDDSYN
Input voltage2
Vin
GND – 0.3 to V DDH
V
Storage temperature range
Tstg
– 55 to +150
°C
1
2
The power supply of the device must start its ramp from 0.0 V.
Functional operating conditions are provided with the DC electrical specifications in Table 5. Absolute maximum ratings are
stress ratings only; functional operation at the maxima is not guaranteed. Stresses beyond those listed may affect device
reliability or cause permanent damage to the device.
Caution: All inputs that tolerate 5 V cannot be more than 2.5 V greater than V DDH. This restriction applies to power-up and
normal operation (that is, if the MPC852T is unpowered, a voltage greater than 2.5 V must not be applied to its inputs).
Figure 2 shows the undershoot and overshoot voltages at the interface of the MPC852T.
VDDH/VDDL + 20%
VDDH/VDDL + 5%
VIH
VDDH/VDDL
GND
GND – 0.3 V
VIL
GND – 0.7 V
Not to Exceed 10%
of tinterface1
Note:
1. tinterface refers to the clock period associated with the bus clock interface.
Figure 2. Undershoot/Overshoot Voltage for VDDH and VDDL
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Freescale Semiconductor
Thermal Characteristics
Table 2. Operating Temperatures
Rating
Symbol
Value
Unit
TA(min)
0
°C
Tj(max)
95
°C
TA(min)
– 40
°C
Tj(max)
100
°C
Temperature 1 (standard)
Temperature (extended)
1
Minimum temperatures are guaranteed as ambient temperature, TA. Maximum temperatures are guaranteed as junction
temperature, Tj.
This device contains circuitry protecting against damage that high-static voltage or electrical fields cause;
however, Freescale recommends taking normal precautions to avoid application of any voltages higher
than maximum-rated voltages to this high-impedance circuit. Reliability of operation is enhanced if
unused inputs are tied to an appropriate logic voltage level (for example, either GND or VDD).
4
Thermal Characteristics
Table 3 shows the thermal characteristics for the MPC852T.
Table 3. MPC852T Thermal Resistance Data
Rating
Environment
Junction-to-ambient1
Symbol
Value
Unit
Single-layer board (1s)
RθJA2
49
°C/W
Four-layer board (2s2p)
RθJMA3
32
Single-layer board (1s)
RθJMA3
41
Four-layer board (2s2p)
RθJMA3
29
RθJB
24
RθJC
13
Natural convection
Ψ JT
3
Airflow (200 ft/min)
Ψ JT
2
Natural convection
Airflow (200 ft/min)
Junction-to-board4
Junction-to-case5
Junction-to-package
1
2
3
4
5
6
top6
Junction temperature is a function of on-chip power dissipation, package thermal resistance, mounting site (board)
temperature, ambient temperature, airflow, power dissipation of other components on the board, and board thermal resistance.
Per SEMI G38-87 and JEDEC JESD51-2 with the single-layer board horizontal
Per JEDEC JESD51-6 with the board horizontal
Thermal resistance between the die and the printed-circuit board per JEDEC JESD51-8. Board temperature is measured on
the top surface of the board near the package.
Indicates the average thermal resistance between the die and the case top surface as measured by the cold plate method
(MIL SPEC-883 Method 1012.1) with the cold plate temperature used for the case temperature. For exposed pad packages
where the pad would be expected to be soldered, junction-to-case thermal resistance is a simulated value from the junction to
the exposed pad without contact resistance.
Thermal characterization parameter indicating the temperature difference between package top and the junction temperature
per JEDEC JESD51-2
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
7
Power Dissipation
5
Power Dissipation
Table 4 provides power dissipation information. The modes are 1:1, where CPU and bus speeds are equal,
and 2:1 mode, where CPU frequency is twice bus speed.
Table 4. Power Dissipation (PD)
Die Revision
Bus Mode
Frequency
(MHz)
Typical1
Maximum2
Unit
50
110
140
mW
66
150
180
mW
66
140
160
mW
80
170
200
mW
100
210
250
mW
1:1
0
2:1
1
2
Typical power dissipation is measured at 1.9 V.
Maximum power dissipation at VDDL and VDDSYN is at 1.9 V. and V DDH is at 3.465 V.
NOTE
Values in Table 4 represent VDDL-based power
dissipation, and do not include I/O power dissipation
over VDDH. I/O power dissipation varies widely by
application that buffer current can cause, depending on
external circuitry.
The VDDSYN power dissipation is negligible.
6
DC Characteristics
Table 5 provides the DC electrical characteristics for the MPC852T.
Table 5. DC Electrical Specifications
Characteristic
Symbol
Min
Max
Unit
VDDH
3.135
3.465
V
VDDL
1.7
1.9
V
VDDSYN
1.7
1.9
V
Difference between
VDDL to VDDSYN
—
100
mV
Input high voltage (all inputs except PA[0:3], PA[8:11],
PB15, PB[24:25]; PB[28:31], PC[4:7], PC[12:13], PC15,
PD[3:15], TDI, TDO, TCK, TRST, TMS, MII_TXEN,
MII_MDIO)1
VIH
2.0
3.465
V
Input low voltage
VIL
GND
0.8
V
VIHC
0.7 × VDDH
VDDH
V
Operating voltage
EXTAL, EXTCLK input high voltage
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
8
Freescale Semiconductor
Thermal Calculation and Measurement
Table 5. DC Electrical Specifications (continued)
Characteristic
Symbol
Min
Max
Unit
Input leakage current, Vin = 5.5 V (Except TMS, TRST,
DSCK and DSDI pins) for 5-V tolerant pins 1
Iin
—
100
µA
Input leakage current, Vin = VDDH (Except TMS, TRST,
DSCK, and DSDI)
IIn
—
10
µA
Input leakage current, Vin = 0 V (Except TMS, TRST,
DSCK and DSDI pins)
IIn
—
10
µA
Input capacitance2
Cin
—
20
pF
Output high voltage, IOH = -2.0 mA, VDDH = 3.0 V
Except XTAL and open drain pins
VOH
2.4
—
V
Output low voltage
IOL = 2.0 mA (CLKOUT)
IOL = 3.2 mA3
IOL = 5.3 mA4
IOL = 7.0 mA (Txd1/pa14, txd2/pa12)
IOL = 8.9 mA (TS, TA, TEA, BI, BB, HRESET, SRESET)
VOL
—
0.5
V
1
The PA[0:3], PA[8:11], PB15, PB[24:25]; PB[28:31], PC[4:7], PC[12:13], PC15, PD[3:15], TDI, TDO, TCK, TRST, TMS,
MII_TXEN, MII_MDIO are 5-V tolerant pins.
2 Input capacitance is periodically sampled.
3 A(0:31), TSIZ0/REG, TSIZ1, D(0:31), DP(0:3)/IRQ(3:6), RD/WR, BURST, RSV/IRQ2, IWP(0:1)/VFLS(0:1), RXD3/PA11,
TXD3/PA10, RXD4/PA9, TXD4/PA8, TIN3/BRGO3/CLK5/PA3, BRGCLK2/TOUT3/CLK6/PA2, TIN4/BRGO4/CLK7/PA1,
TOUT4/CLK8/PA0, SPISEL/PB31, SPICLK/PB30, SPIMOSI/PB29, BRGO4/SPIMISO/PB28, SMTXD1/PB25,
SMRXD1/PB24, BRGO3/PB15, RTS1/DREQ0/PC15, RTS3/PC13, RTS4/PC12, CTS3/PC7, CD3/PC6, CTS4/SDACK1/PC5,
CD4/PC4, MII-RXD3/PD15, MII-RXD2/PD14, MII-RXD1/PD13, MII-MDC/PD12, MII-TXERR/RXD3/PD11,
MII-RX0/TXD3/PD10, MII-TXD0/RXD4/PD9, MII-RXCLK/TXD4/PD8, MII-TXD3/PD5, MII-RXDV/RTS4/PD6,
MII-RXERR/RTS3/PD7, MII-TXD2/REJECT3/PD4, MII-TXD1/REJECT4/PD3, MII_CRS, MII_MDIO, MII_TXEN, and MII_COL
4 BDIP/GPL_B(5), BR, BG, FRZ/IRQ6, CS(0:5), CS(6), CS(7), WE0/BS_B0/IORD, WE1/BS_B1/IOWR, WE2/BS_B2/PCOE,
WE3/ BS_B3/PCWE, BS_A(0:3), GPL_A0/GPL_B0, OE/GPL_A1/GPL_B1, GPL_A(2:3)/GPL_B(2:3)/CS(2:3),
UPWAITA/GPL_A4, GPL_A5, ALE_A, CE1_A, CE2_A, DSCK, OP(0:1), OP2/MODCK1/STS, OP3/MODCK2/DSDO, and
BADDR(28:30)
7
Thermal Calculation and Measurement
For the following discussions, PD= (VDDL x IDDL) + PI/O, where PI/O is the power dissipation of the I/O
drivers.
NOTE
The VDDSYN power dissipation is negligible.
7.1
Estimation with Junction-to-Ambient Thermal Resistance
An estimation of the chip junction temperature, TJ, in °C can be obtained from the equation:
TJ = TA +(RθJA × PD)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
9
Thermal Calculation and Measurement
where:
TA = ambient temperature (ºC)
RθJA = package junction-to-ambient thermal resistance (ºC/W)
PD = power dissipation in package
The junction-to-ambient thermal resistance is an industry standard value that provides a quick and easy
estimation of thermal performance. However, the answer is only an estimate; test cases have demonstrated
that errors of a factor of two (in the quantity TJ – TA) are possible.
7.2
Estimation with Junction-to-Case Thermal Resistance
Historically, the thermal resistance has frequently been expressed as the sum of a junction-to-case thermal
resistance and a case-to-ambient thermal resistance:
RθJA = RθJC + RθCA
where:
RθJA = junction-to-ambient thermal resistance (ºC/W)
RθJC = junction-to-case thermal resistance (ºC/W)
RθCA = case-to-ambient thermal resistance (ºC/W)
RθJC is device-related and cannot be influenced by the user. The user adjusts the thermal environment to
affect the case-to-ambient thermal resistance, RθCA. For instance, the user can change the airflow around
the device, add a heat sink, change the mounting arrangement on the printed-circuit board, or change the
thermal dissipation on the printed-circuit board surrounding the device. This thermal model is most useful
for ceramic packages with heat sinks where some 90% of the heat flows through the case and the heat sink
to the ambient environment. For most packages, a better model is required.
7.3
Estimation with Junction-to-Board Thermal Resistance
A simple package thermal model that has demonstrated reasonable accuracy (about 20%) is a two-resistor
model consisting of a junction-to-board and a junction-to-case thermal resistance. The junction-to-case
covers the situation where a heat sink is used or where a substantial amount of heat is dissipated from the
top of the package. The junction-to-board thermal resistance describes the thermal performance when most
of the heat is conducted to the printed-circuit board. Thermal performance of most plastic packages and
especially PBGA packages is strongly dependent on the board temperature. If the board temperature is
known, an estimate of the junction temperature in the environment can be made using the following
equation:
TJ = TB +(RθJB × PD)
where:
RθJB = junction-to-board thermal resistance (ºC/W)
TB = board temperature (ºC)
PD = power dissipation in package
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
10
Freescale Semiconductor
References
If the board temperature is known and the heat loss from the package case to the air can be ignored,
acceptable predictions of junction temperature can be made. For this method to work, the board and board
mounting must be similar to the test board used to determine the junction-to-board thermal resistance,
namely a 2s2p (board with a power and a ground plane) and vias attaching the thermal balls to the ground
plane.
7.4
Estimation Using Simulation
When the board temperature is not known, a thermal simulation of the application is needed. The simple
two-resistor model can be used with the thermal simulation of the application [2], or a more accurate and
complex model of the package can be used in the thermal simulation.
7.5
Experimental Determination
To determine the junction temperature of the device in the application after prototypes are available, the
thermal characterization parameter (ΨJT) can be used to determine the junction temperature with a
measurement of the temperature at the top center of the package case using the following equation:
TJ = TT + (ΨJT × PD)
where:
ΨJT = thermal characterization parameter
TT = thermocouple temperature on top of package
PD = power dissipation in package
The thermal characterization parameter is measured per JESD51-2 specification published by JEDEC
using a 40-gauge type T thermocouple epoxied to the top center of the package case. The thermocouple
should be positioned so that the thermocouple junction rests on the package. A small amount of epoxy is
placed over the thermocouple junction and over about 1 mm of wire extending from the junction. The
thermocouple wire is placed flat against the package case to avoid measurement errors that cooling effects
of the thermocouple wire cause.
8
References
Semiconductor Equipment and Materials International (415) 964-5111
805 East Middlefield Rd
Mountain View, CA 94043
MIL-SPEC and EIA/JESD (JEDEC) specifications
800-854-7179 or
(Available from Global Engineering documents)
303-397-7956
JEDEC Specifications
http://www.jedec.org
1. C.E. Triplett and B. Joiner, “An Experimental Characterization of a 272 PBGA Within an
Automotive Engine Controller Module,” Proceedings of SemiTherm, San Diego, 1998, pp. 47–54.
2. B. Joiner and V. Adams, “Measurement and Simulation of Junction to Board Thermal Resistance
and Its Application in Thermal Modeling,” Proceedings of SemiTherm, San Diego, 1999,
pp. 212–220.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
11
Power Supply and Power Sequencing
9
Power Supply and Power Sequencing
This section provides design considerations for the MPC852T power supply. The MPC852T has a core
voltage (VDDL) and PLL voltage (VDDSYN) that operates at a lower voltage than the I/O voltage VDDH.
The I/O section of the MPC852T is supplied with 3.3 V across VDDH and VSS (GND).
The signals PA[0:3], PA[8:11], PB15, PB[24:25]; PB[28:31], PC[4:7], PC[12:13], PC15] PD[3:15], TDI,
TDO, TCK, TRST, TMS, MII_TXEN, MII_MDIO are 5-V tolerant. All inputs cannot be more than 2.5 V
greater than VDDH. In addition, 5-V tolerant pins can not exceed 5.5 V, and the remaining input pins cannot
exceed 3.465 V. This restriction applies to power-on reset or power down and normal operation.
One consequence of multiple power supplies is that when power is initially applied, the voltage rails ramp
up at different rates. The rates depend on the nature of the power supply, the type of load on each power
supply, and the manner in which different voltages are derived. The following restrictions apply:
• VDDL must not exceed VDDH during power-on reset or power down.
• VDDL must not exceed 1.9 V, and VDDH must not exceed 3.465.
These cautions are necessary for the long-term reliability of the part. If they are violated, the electrostatic
discharge (ESD) protection diodes are forward-biased, and excessive current can flow through these
diodes. If the system power supply design does not control the voltage sequencing, the circuit shown in
Figure 3 can be added to meet these requirements. The MUR420 Schottky diodes control the maximum
potential difference between the external bus and core power supplies on power-on reset, and the 1N5820
diodes regulate the maximum potential difference on power-down.
VDDH
VDDL
MUR420
1N5820
Figure 3. Example Voltage Sequencing Circuit
10 Mandatory Reset Configurations
The MPC852T requires a mandatory configuration during reset.
If hardware reset configuration word (HRCW) is enabled, by asserting the RSTCONF during HRESET
assertion, the HRCW[DBGC] value that is needed to be set to binary X1 in the hardware reset
configuration word (HRCW) and the SIUMCR[DBGC] should be programmed with the same value in the
boot code after reset.
If hardware reset configuration word (HRCW) is disabled, by negating the RSTCONF during the
HRESET assertion, the SIUMCR[DBGC] should be programmed with binary X1 in the boot code after
reset.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
12
Freescale Semiconductor
Layout Practices
The MBMR[GPLB4DIS], PAPAR, PADIR, PBPAR, PBDIR, PCPAR, and PCDIR should be configured
with the mandatory value in Table 6 in the boot code after the reset deasserts.
Table 6. Mandatory Reset Configuration of MPC852T
Register/Configuration
Field
Value
(Binary)
HRCW (Hardware reset configuration word)
HRCW[DBGC]
X1
SIUMCR (SIU module configuration register)
SIUMCR[DBGC]
X1
MBMR (Machine B mode register)
MBMR[GPLB4DIS}
0
PAPAR (Port A pin assignment register)
PAPAR[4–7]
PAPAR[12–15]
0
PADIR (Port A data direction register)
PADIR[4–7]
PADIR[12–15]
1
PBPAR (Port B pin assignment register)
PBPAR[14]
PBPAR[16–23]
PBPAR[26–27]
0
PBDIR (Port B data direction register)
PBDIR[14]
PBDIR[16–23]
PBDIR[26–27]
1
PCPAR (Port C pin assignment register)
PCPAR[8–11]
PCDIR[14]
0
PCDIR (Port C data direction register)
PCDIR[8–11]
PCDIR[14]
1
11 Layout Practices
Each VDD pin on the MPC852T should be provided with a low-impedance path to the board’s supply. Each
GND pin should likewise be provided with a low-impedance path to ground. The power supply pins drive
distinct groups of logic on chip. The VDD power supply should be bypassed to ground using at least four
0.1 µF bypass capacitors located as close as possible to the four sides of the package. Each board designed
should be characterized and additional appropriate decoupling capacitors should be used if required. The
capacitor leads and associated printed-circuit traces connecting to chip VDD and GND should be kept to
less than half an inch per capacitor lead. At a minimum, a four-layer board employing two inner layers as
VDD and GND planes should be used.
All output pins on the MPC852T have fast rise and fall times. Printed-circuit (PC) trace interconnection
length should be minimized to minimize undershoot and reflections that these fast output switching times
cause. This recommendation particularly applies to the address and data buses. Maximum PC trace lengths
of six inches are recommended. Capacitance calculations should consider all device loads as well as
parasitic capacitances that the PC traces cause. Attention to proper PCB layout and bypassing becomes
especially critical in systems with higher capacitive loads, because these loads create higher transient
currents in the VDD and GND circuits. Pull up all unused inputs or signals that are inputs during reset.
Special care should be taken to minimize the noise levels on the PLL supply pins. For more information,
please refer to the MPC866 PowerQUICC™ Family Reference Manual, Section 14.4.3, “Clock
Synthesizer Power (VDDSYN, VSSSYN, VSSSYN1).”
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
13
Bus Signal Timing
12 Bus Signal Timing
The maximum bus speed that the MPC852T supports is 66 MHz. Table 7 shows the frequency ranges for
standard part frequencies.
Table 7. Frequency Ranges for Standard Part Frequencies (1:1 Bus Mode)
50 MHz
66 MHz
Part Frequency
Min
Max
Min
Max
Core
40
50
40
66.67
Bus
40
50
40
66.67
Table 8. Frequency Ranges for Standard Part Frequencies (2:1 Bus Mode)
50 MHz
66 MHz
80 MHz
100 MHz
Part Frequency
Min
Max
Min
Max
Min
Max
Min
Max
Core
40
50
40
66.67
40
80
40
100
Bus 2:1
20
25
20
33.33
20
40
20
50
Table 9 provides the bus operation timing for the MPC852T at 33, 40, 50, and 66 MHz.
The timing for the MPC852T bus shown assumes a 50-pF load for maximum delays and a 0-pF load for
minimum delays. CLKOUT assumes a 100-pF load maximum delay
Table 9. Bus Operation Timings
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
B1
Bus period (CLKOUT) See Table 7
—
—
—
—
—
—
—
—
ns
B1a
EXTCLK to CLKOUT phase skew—If
CLKOUT is an integer multiple of
EXTCLK, then the rising edge of EXTCLK
is aligned with the rising edge of CLKOUT.
For a non-integer multiple of EXTCLK, this
synchronization is lost, and the rising
edges of EXTCLK and CLKOUT have a
continuously varying phase skew.
–2
+2
–2
+2
–2
+2
–2
+2
ns
B1b
CLKOUT frequency jitter peak-to-peak
—
1
—
1
—
1
—
1
ns
—
0.50
—
0.50
—
0.50
—
0.50
%
EXTCLK1
B1c
Frequency jitter on
B1d
CLKOUT phase jitter peak-to-peak for
OSCLK ≥ 15 MHz
—
4
—
4
—
4
—
4
ns
CLKOUT phase jitter peak-to-peak for
OSCLK < 15 MHz
—
5
—
5
—
5
—
5
ns
12.1
18.2
10.0
15.0
8.0
12.0
6.1
9.1
ns
B2
CLKOUT pulse width low (MIN = 0.4 × B1,
MAX = 0.6 × B1)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
14
Freescale Semiconductor
Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
12.1
18.2
10.0
15.0
8.0
12.0
6.1
9.1
ns
B3
CLKOUT pulse width high (MIN = 0.4 × B1,
MAX = 0.6 × B1)
B4
CLKOUT rise time
—
4.00
—
4.00
—
4.00
—
4.00
ns
B5
CLKOUT fall time
—
4.00
—
4.00
—
4.00
—
4.00
ns
B7
CLKOUT to A(0:31), BADDR(28:30),
RD/WR, BURST, D(0:31), DP(0:3) output
hold (MIN = 0.25 × B1)
7.60
—
6.30
—
5.00
—
3.80
—
ns
B7a
CLKOUT to TSIZ(0:1), REG, RSV, BDIP,
PTR output hold (MIN = 0.25 × B1)
7.60
—
6.30
—
5.00
—
3.80
—
ns
B7b
CLKOUT to BR, BG, FRZ, VFLS(0:1),
VF(0:2) IWP(0:2), LWP(0:1), STS output
hold (MIN = 0.25 × B1)
7.60
—
6.30
—
5.00
—
3.80
—
ns
B8
CLKOUT to A(0:31), BADDR(28:30)
RD/WR, BURST, D(0:31), DP(0:3) valid
(MAX = 0.25 × B1 + 6.3)
—
13.80
—
12.50
—
11.30
—
10.00
ns
B8a
CLKOUT to TSIZ(0:1), REG, RSV, BDIP,
PTR valid (MAX = 0.25 × B1 + 6.3)
—
13.80
—
12.50
—
11.30
—
10.00
ns
B8b
CLKOUT to BR, BG, VFLS(0:1), VF(0:2),
IWP(0:2), FRZ, LWP(0:1), STS Valid3
(MAX = 0.25 × B1 + 6.3)
—
13.80
—
12.50
—
11.30
—
10.00
ns
B9
CLKOUT to A(0:31), BADDR(28:30),
RD/WR, BURST, D(0:31), DP(0:3),
TSIZ(0:1), REG, RSV, PTR High-Z
(MAX = 0.25 × B1 + 6.3)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
B11
CLKOUT to TS, BB assertion
(MAX = 0.25 × B1 + 6.0)
7.60
13.60
6.30
12.30
5.00
11.00
3.80
9.80
ns
B11a
CLKOUT to TA, BI assertion (when driven
by the memory controller or PCMCIA
interface) (MAX = 0.00 × B1 + 9.302)
2.50
9.30
2.50
9.30
2.50
9.30
2.50
9.80
ns
B12
CLKOUT to TS, BB negation
(MAX = 0.25 × B1 + 4.8)
7.60
12.30
6.30
11.00
5.00
9.80
3.80
8.50
ns
B12a
CLKOUT to TA, BI negation (when driven
by the memory controller or PCMCIA
interface) (MAX = 0.00 × B1 + 9.00)
2.50
9.00
2.50
9.00
2.50
9.00
2.50
9.00
ns
B13
CLKOUT to TS, BB High-Z
(MIN = 0.25 × B1)
7.60
21.60
6.30
20.30
5.00
19.00
3.80
14.00
ns
B13a
CLKOUT to TA, BI High-Z (when driven by
the memory controller or PCMCIA
interface) (MIN = 0.00 × B1 + 2.5)
2.50
15.00
2.50
15.00
2.50
15.00
2.50
15.00
ns
B14
CLKOUT to TEA assertion
(MAX = 0.00 × B1 + 9.00)
2.50
9.00
2.50
9.00
2.50
9.00
2.50
9.00
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
15
Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
B15
CLKOUT to TEA High-Z
(MIN = 0.00 × B1 + 2.50)
2.50
15.00
2.50
15.00
2.50
15.00
2.50
15.00
ns
B16
TA, BI valid to CLKOUT (setup time)
(MIN = 0.00 × B1 + 6.00)
6.00
—
6.00
—
6.00
—
6.00
—
ns
B16a
TEA, KR, RETRY, CR valid to CLKOUT
(setup time) (MIN = 0.00 × B1 + 4.5)
4.50
—
4.50
—
4.50
—
4.50
—
ns
B16b
BB, BG, BR, valid to CLKOUT (setup time)
3 (4MIN = 0.00 × B1 +.000)
4.00
—
4.00
—
4.00
—
4.00
—
ns
B17
CLKOUT to TA, TEA, BI, BB, BG, BR valid
(hold time) (MIN = 0.00 × B1 + 1.004)
1.00
—
1.00
—
1.00
—
2.00
—
ns
B17a
CLKOUT to KR, RETRY, CR valid (hold
time) (MIN = 0.00 × B1 + 2.00)
2.00
—
2.00
—
2.00
—
2.00
—
ns
B18
D(0:31), DP(0:3) valid to CLKOUT rising
edge (setup time)5
(MIN = 0.00 × B1 + 6.00)
6.00
—
6.00
—
6.00
—
6.00
—
ns
B19
CLKOUT rising edge to D(0:31), DP(0:3)
valid (hold time)5 (MIN = 0.00 × B1 + 1.006)
1.00
—
1.00
—
1.00
—
2.00
—
ns
B20
D(0:31), DP(0:3) valid to CLKOUT falling
edge (setup time)7
(MIN = 0.00 × B1 + 4.00)
4.00
—
4.00
—
4.00
—
4.00
—
ns
B21
CLKOUT falling edge to D(0:31), DP(0:3)
valid (hold Time)7 (MIN = 0.00 × B1 + 2.00)
2.00
—
2.00
—
2.00
—
2.00
—
ns
B22
CLKOUT rising edge to CS asserted
GPCM ACS = 00 (MAX = 0.25 × B1 + 6.3)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
B22a
CLKOUT falling edge to CS asserted
GPCM ACS = 10, TRLX = 0
(MAX = 0.00 × B1 + 8.00)
—
8.00
—
8.00
—
8.00
—
8.00
ns
B22b
CLKOUT falling edge to CS asserted
GPCM ACS = 11, TRLX = 0, EBDF = 0
(MAX = 0.25 × B1 + 6.3)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
B22c
CLKOUT falling edge to CS asserted
GPCM ACS = 11, TRLX = 0, EBDF = 1
(MAX = 0.375 × B1 + 6.6)
10.90
18.00
10.90
16.00
7.00
14.10
5.20
12.30
ns
B23
CLKOUT rising edge to CS negated
GPCM read access, GPCM write access
ACS = 00, TRLX = 0 & CSNT = 0
(MAX = 0.00 × B1 + 8.00)
2.00
8.00
2.00
8.00
2.00
8.00
2.00
8.00
ns
B24
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 10, TRLX = 0
(MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
16
Freescale Semiconductor
Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
13.20
—
10.50
—
8.00
—
5.60
—
ns
—
9.00
9.00
ns
B24a
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 11 TRLX = 0
(MIN = 0.50 × B1 – 2.00)
B25
CLKOUT rising edge to OE,
WE(0:3)/BS_B[0:3] asserted
(MAX = 0.00 × B1 + 9.00)
B26
CLKOUT rising edge to OE negated
(MAX = 0.00 × B1 + 9.00)
2.00
9.00
2.00
9.00
2.00
9.00
2.00
9.00
ns
B27
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 10, TRLX = 1
(MIN = 1.25 × B1 – 2.00)
35.90
—
29.30
—
23.00
—
16.90
—
ns
B27a
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 11, TRLX = 1
(MIN = 1.50 × B1 – 2.00)
43.50
—
35.50
—
28.00
—
20.70
—
ns
B28
CLKOUT rising edge to WE(0:3)/
BS_B[0:3] negated GPCM write access
CSNT = 0 (MAX = 0.00 × B1 + 9.00)
—
9.00
—
9.00
—
9.00
—
9.00
ns
B28a
CLKOUT falling edge to WE(0:3)/
BS_B[0:3] negated GPCM write access
TRLX = 0,1 CSNT = 1, EBDF = 0
(MAX = 0.25 × B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B28b
CLKOUT falling edge to CS negated
GPCM write access TRLX = 0,1 CSNT = 1
ACS = 10 or ACS = 11, EBDF = 0
(MAX = 0.25 × B1 + 6.80)
—
14.30
—
13.00
—
11.80
—
10.50
ns
B28c
CLKOUT falling edge to
WE(0:3)/BS_B[0:3] negated GPCM write
access TRLX = 0,1 CSNT = 1 write access
TRLX = 0,1 CSNT = 1, EBDF = 1
(MAX = 0.375 × B1 + 6.6)
10.90
18.00
10.90
18.00
7.00
14.30
5.20
12.30
ns
B28d
CLKOUT falling edge to CS negated
GPCM write access TRLX = 0,1 CSNT =
1, ACS = 10, or ACS = 11, EBDF = 1
(MAX = 0.375 × B1 + 6.6)
—
18.00
—
18.00
—
14.30
—
12.30
ns
B29
WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High-Z GPCM write access,
CSNT = 0, EBDF = 0
(MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B29a
WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High-Z GPCM write access, TRLX
= 0, CSNT = 1, EBDF = 0
(MIN = 0.50 × B1 – 2.00)
13.20
—
10.50
—
8.00
—
5.60
—
ns
9.00
9.00
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
17
Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
B29b
CS negated to D(0:31), DP(0:3), High Z
GPCM write access, ACS = 00,
TRLX = 0,1 and CSNT = 0
(MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B29c
CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 0, CSNT = 1,
ACS = 10, or ACS = 11 EBDF = 0
(MIN = 0.50 × B1 – 2.00)
13.20
—
10.50
—
8.00
—
5.60
—
ns
B29d
WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High-Z GPCM write access, TRLX
= 1, CSNT = 1, EBDF = 0
(MIN = 1.50 × B1 – 2.00)
43.50
—
35.50
—
28.00
—
20.70
—
ns
B29e
CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 1, CSNT = 1,
ACS = 10, or ACS = 11 EBDF = 0
(MIN = 1.50 × B1 – 2.00)
43.50
—
35.50
—
28.00
—
20.70
—
ns
B29f
WE(0:3/BS_B[0:3]) negated to D(0:31),
DP(0:3) High Z GPCM write access,
TRLX = 0, CSNT = 1, EBDF = 1
(MIN = 0.375 × B1 – 6.30)8
5.00
—
3.00
—
1.10
—
0.00
—
ns
B29g
CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 0, CSNT = 1
ACS = 10 or ACS = 11, EBDF = 1
(MIN = 0.375 × B1 – 6.30)8
5.00
—
3.00
—
1.10
—
0.00
—
ns
B29h
WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High Z GPCM write access,
TRLX = 1, CSNT = 1, EBDF = 1
(MIN = 0.375 × B1 – 3.30)
38.40
—
31.10
—
24.20
—
17.50
—
ns
B29i
CS negated to D(0:31), DP(0:3) High-Z
GPCM write access, TRLX = 1, CSNT = 1,
ACS = 10 or ACS = 11, EBDF = 1
(MIN = 0.375 × B1 – 3.30)
38.40
—
31.10
—
24.20
—
17.50
—
ns
B30
CS, WE(0:3)/BS_B[0:3] negated to
A(0:31), BADDR(28:30) Invalid GPCM
write access 9 (MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B30a
WE(0:3)/BS_B[0:3] negated to A(0:31),
BADDR(28:30) Invalid GPCM, write
access, TRLX = 0, CSNT = 1, CS negated
to A(0:31) invalid GPCM write access
TRLX = 0, CSNT =1 ACS = 10, or
ACS == 11, EBDF = 0
(MIN = 0.50 × B1 – 2.00)
13.20
—
10.50
—
8.00
—
5.60
—
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
18
Freescale Semiconductor
Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
B30b
WE(0:3)/BS_B[0:3] negated to A(0:31)
Invalid GPCM BADDR(28:30) invalid
GPCM write access, TRLX = 1, CSNT = 1.
CS negated to A(0:31) Invalid GPCM write
access TRLX = 1, CSNT = 1, ACS = 10, or
ACS == 11 EBDF = 0
(MIN = 1.50 × B1 – 2.00)
43.50
—
35.50
—
28.00
—
20.70
—
ns
B30c
WE(0:3)/BS_B[0:3] negated to A(0:31),
BADDR(28:30) invalid GPCM write
access, TRLX = 0, CSNT = 1. CS negated
to A(0:31) invalid GPCM write access,
TRLX = 0, CSNT = 1 ACS = 10,
ACS == 11, EBDF = 1
(MIN = 0.375 × B1 – 3.00)
8.40
—
6.40
—
4.50
—
2.70
—
ns
B30d
WE(0:3)/BS_B[0:3] negated to A(0:31),
BADDR(28:30) invalid GPCM write access
TRLX = 1, CSNT =1, CS negated to
A(0:31) invalid GPCM write access
TRLX = 1, CSNT = 1, ACS = 10 or 11,
EBDF = 1
38.67
—
31.38
—
24.50
—
17.83
—
ns
B31
CLKOUT falling edge to CS valid - as
requested by control bit CST4 in the
corresponding word in the UPM
(MAX = 0.00 × B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
B31a
CLKOUT falling edge to CS valid - as
requested by control bit CST1 in the
corresponding word in the UPM
(MAX = 0.25 × B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B31b
CLKOUT rising edge to CS valid - as
requested by control bit CST2 in the
corresponding word in the UPM
(MAX = 0.00 × B1 + 8.00)
1.50
8.00
1.50
8.00
1.50
8.00
1.50
8.00
ns
B31c
CLKOUT rising edge to CS valid- as
requested by control bit CST3 in the
corresponding word in the UPM
(MAX = 0.25 × B1 + 6.30)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
B31d
CLKOUT falling edge to CS valid, as
requested by control bit CST1 in the
corresponding word in the UPM EBDF = 1
(MAX = 0.375 × B1 + 6.6)
13.30
18.00
11.30
16.00
9.40
14.10
7.60
12.30
ns
B32
CLKOUT falling edge to BS valid- as
requested by control bit BST4 in the
corresponding word in the UPM
(MAX = 0.00 × B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
19
Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
B32a
CLKOUT falling edge to BS valid - as
requested by control bit BST1 in the
corresponding word in the UPM, EBDF = 0
(MAX = 0.25 × B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B32b
CLKOUT rising edge to BS valid - as
requested by control bit BST2 in the
corresponding word in the UPM
(MAX = 0.00 × B1 + 8.00)
1.50
8.00
1.50
8.00
1.50
8.00
1.50
8.00
ns
B32c
CLKOUT rising edge to BS valid - as
requested by control bit BST3 in the
corresponding word in the UPM
(MAX = 0.25 × B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B32d
CLKOUT falling edge to BS valid- as
requested by control bit BST1 in the
corresponding word in the UPM, EBDF = 1
(MAX = 0.375 × B1 + 6.60)
13.30
18.00
11.30
16.00
9.40
14.10
7.60
12.30
ns
B33
CLKOUT falling edge to GPL valid - as
requested by control bit GxT4 in the
corresponding word in the UPM
(MAX = 0.00 × B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
B33a
CLKOUT rising edge to GPL Valid - as
requested by control bit GxT3 in the
corresponding word in the UPM
(MAX = 0.25 × B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B34
A(0:31), BADDR(28:30), and D(0:31) to
CS valid - as requested by control bit
CST4 in the corresponding word in the
UPM (MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B34a
A(0:31), BADDR(28:30), and D(0:31) to
CS valid - as requested by control bit
CST1 in the corresponding word in the
UPM (MIN = 0.50 × B1 – 2.00)
13.20
—
10.50
—
8.00
—
5.60
—
ns
B34b
A(0:31), BADDR(28:30), and D(0:31) to
CS valid - as requested by CST2 in the
corresponding word in UPM
(MIN = 0.75 × B1 – 2.00)
20.70
—
16.70
—
13.00
—
9.40
—
ns
B35
A(0:31), BADDR(28:30) to CS valid - as
requested by control bit BST4 in the
corresponding word in the UPM
(MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B35a
A(0:31), BADDR(28:30), and D(0:31) to
BS valid - As Requested by BST1 in the
corresponding word in the UPM
(MIN = 0.50 × B1 – 2.00)
13.20
—
10.50
—
8.00
—
5.60
—
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
20
Freescale Semiconductor
Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
B35b
A(0:31), BADDR(28:30), and D(0:31) to
BS valid - as requested by control bit BST2
in the corresponding word in the UPM
(MIN = 0.75 × B1 – 2.00)
20.70
—
16.70
—
13.00
—
9.40
—
ns
B36
A(0:31), BADDR(28:30), and D(0:31) to
GPL valid as requested by control bit GxT4
in the corresponding word in the UPM
(MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
B37
UPWAIT valid to CLKOUT falling edge10
(MIN = 0.00 × B1 + 6.00)
6.00
—
6.00
—
6.00
—
6.00
—
ns
B38
CLKOUT falling edge to UPWAIT valid10
(MIN = 0.00 × B1 + 1.00)
1.00
—
1.00
—
1.00
—
1.00
—
ns
B39
AS valid to CLKOUT rising edge11
(MIN = 0.00 × B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B40
A(0:31), TSIZ(0:1), RD/WR, BURST, valid
to CLKOUT rising edge
(MIN = 0.00 × B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B41
TS valid to CLKOUT rising edge (setup
time) (MIN = 0.00 × B1 + 7.00)
7.00
—
7.00
—
7.00
—
7.00
—
ns
B42
CLKOUT rising edge to TS valid (hold
time) (MIN = 0.00 × B1 + 2.00)
2.00
—
2.00
—
2.00
—
2.00
—
ns
B43
AS negation to memory controller signals
negation (MAX = TBD)
—
TBD
—
TBD
—
TBD
—
TBD
ns
1
If the rate of change of the frequency of EXTAL is slow (that is, it does not jump between the minimum and maximum values
in one cycle) or the frequency of the jitter is fast (that is, it does not stay at an extreme value for a long time), then the maximum
allowed jitter on EXTAL can be up to 2%.
2 For part speeds above 50MHz, use 9.80ns for B11a.
3 The timing required for BR input is relevant when the MPC852T is selected to work with internal bus arbiter. The timing for BG
input is relevant when the MPC852T is selected to work with external bus arbiter.
4 For part speeds above 50MHz, use 2ns for B17.
5
The D(0:31) and DP(0:3) input timings B18 and B19 refer to the rising edge of the CLKOUT in which the TA input signal is
asserted.
6
For part speeds above 50MHz, use 2ns for B19.
7 The D(0:31) and DP(0:3) input timings B20 and B21 refer to the falling edge of the CLKOUT. This timing is valid only for read
accesses controlled by chip-selects under control of the UPM in the memory controller, for data beats where DLT3 = 1 in the
UPM RAM words. (This is only the case where data is latched on the falling edge of CLKOUT.)
8
This formula applies to bus operation up to 50 MHz.
9
The timing B30 refers to CS when ACS = 00 and to WE(0:3) when CSNT = 0.
10 The signal UPWAIT is considered asynchronous to the CLKOUT and synchronized internally. The timings specified in B37 and
B38 are specified to enable the freeze of the UPM output signals as described in Figure 19.
11 The AS signal is considered asynchronous to the CLKOUT. The timing B39 is specified in order to allow the behavior specified
in Figure 22.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
21
Bus Signal Timing
Figure 4 is the control timing diagram.
CLKOUT
A
B
Outputs
A
B
Outputs
D
C
Inputs
D
C
Inputs
A
Maximum output delay specification.
B
Minimum output hold time.
C
Minimum input setup time specification.
D
Minimum input hold time specification.
Figure 4. Control Timing
Figure 5 provides the timing for the external clock.
CLKOUT
B1
B3
B1
B4
B2
B5
Figure 5. External Clock Timing
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
22
Freescale Semiconductor
Bus Signal Timing
Figure 6 provides the timing for the synchronous output signals.
CLKOUT
B8
B7
B9
Output
Signals
B8a
B7a
B9
Output
Signals
B8b
B7b
Output
Signals
Figure 6. Synchronous Output Signals Timing
Figure 7 provides the timing for the synchronous active pull-up and open-drain output signals.
CLKOUT
B13
B11
B12
TS, BB
B13a
B11a
B12a
TA, BI
B14
B15
TEA
Figure 7. Synchronous Active Pull-Up Resistor and Open-Drain Outputs Signals Timing
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
23
Bus Signal Timing
Figure 8 provides the timing for the synchronous input signals.
CLKOUT
B16
B17
TA, BI
B16a
B17a
TEA, KR,
RETRY, CR
B16b
B17
BB, BG, BR
Figure 8. Synchronous Input Signals Timing
Figure 9 provides normal case timing for input data. It also applies to normal read accesses under the
control of the UPM in the memory controller.
CLKOUT
B16
B17
TA
B18
B19
D[0:31],
DP[0:3]
Figure 9. Input Data Timing in Normal Case
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
24
Freescale Semiconductor
Bus Signal Timing
Figure 10 provides the timing for the input data controlled by the UPM for data beats where DLT3 = 1 in
the UPM RAM words. (This is only the case where data is latched on the falling edge of CLKOUT.)
CLKOUT
TA
B20
B21
D[0:31],
DP[0:3]
Figure 10. Input Data Timing When Controlled by UPM in the Memory Controller and DLT3 = 1
Figure 11 through Figure 14 provide the timing for the external bus read that various GPCM factors
control.
CLKOUT
B11
B12
TS
B8
A[0:31]
B22
B23
CSx
B25
B26
OE
B28
WE[0:3]
B19
B18
D[0:31],
DP[0:3]
Figure 11. External Bus Read Timing (GPCM Controlled—ACS = 00)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
25
Bus Signal Timing
CLKOUT
B11
B12
TS
B8
A[0:31]
B22a
B23
CSx
B24
B25
B26
OE
B18
B19
D[0:31],
DP[0:3]
Figure 12. External Bus Read Timing (GPCM Controlled—TRLX = 0, ACS = 10)
CLKOUT
B11
B12
TS
B8
B22b
A[0:31]
B22c
B23
CSx
B24a
B25
B26
OE
B18
B19
D[0:31],
DP[0:3]
Figure 13. External Bus Read Timing (GPCM Controlled—TRLX = 0, ACS = 11)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
26
Freescale Semiconductor
Bus Signal Timing
CLKOUT
B11
B12
TS
B8
A[0:31]
B22a
B23
CSx
B27
OE
B26
B27a
B22b B22c
B18
B19
D[0:31],
DP[0:3]
Figure 14. External Bus Read Timing (GPCM Controlled—TRLX = 0 or 1, ACS = 10, ACS = 11)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
27
Bus Signal Timing
Figure 15 through Figure 17 provide the timing for the external bus write that various GPCM factors
control.
CLKOUT
B11
B12
TS
B8
B30
A[0:31]
B22
B23
CSx
B25
B28
WE[0:3]
B29b
B26
OE
B29
B8
B9
D[0:31],
DP[0:3]
Figure 15. External Bus Write Timing (GPCM Controlled—TRLX = 0 or 1, CSNT = 0)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
28
Freescale Semiconductor
Bus Signal Timing
CLKOUT
B11
B12
TS
B30a B30c
B8
A[0:31]
B28b B28d
B22
B23
CSx
B29c B29g
B25
WE[0:3]
B29a B29f
B26
OE
B28a B28c
B8
B9
D[0:31],
DP[0:3]
Figure 16. External Bus Write Timing (GPCM Controlled—TRLX = 0 or 1, CSNT = 1)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
29
Bus Signal Timing
CLKOUT
B11
B12
TS
B8
B30b B30d
A[0:31]
B22
B28b B28d
B23
CSx
B25
B29e B29i
WE[0:3]
B29d B29h
B26
OE
B29b
B8
B28a B28c
B9
D[0:31],
DP[0:3]
Figure 17. External Bus Write Timing (GPCM Controlled—TRLX = 0 or 1, CSNT = 1)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
30
Freescale Semiconductor
Bus Signal Timing
Figure 18 provides the timing for the external bus that the UPM controls.
CLKOUT
B8
A[0:31]
B31a
B31d
B31c
B31b
B31
CSx
B34
B34a
B34b
B32a B32d
B32c
B32b
B32
BS_A[0:3]
B35 B36
B35a
B33a
B35b
B33
GPL_A[0:5],
GPL_B[0:5]
Figure 18. External Bus Timing (UPM Controlled Signals)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
31
Bus Signal Timing
Figure 19 provides the timing for the asynchronous asserted UPWAIT signal that the UPM controls.
CLKOUT
B37
UPWAIT
B38
CSx
BS_A[0:3]
GPL_A[0:5],
GPL_B[0:5]
Figure 19. Asynchronous UPWAIT Asserted Detection in UPM Handled Cycles Timing
Figure 20 provides the timing for the asynchronous negated UPWAIT signal that the UPM controls.
CLKOUT
B37
UPWAIT
B38
CSx
BS_A[0:3]
GPL_A[0:5],
GPL_B[0:5]
Figure 20. Asynchronous UPWAIT Negated Detection in UPM Handled Cycles Timing
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
32
Freescale Semiconductor
Bus Signal Timing
Figure 21 provides the timing for the synchronous external master access that the GPCM controls.
CLKOUT
B41
B42
TS
B40
A[0:31],
TSIZ[0:1],
R/W, BURST
B22
CSx
Figure 21. Synchronous External Master Access Timing (GPCM Handled ACS = 00)
Figure 22 provides the timing for the asynchronous external master memory access that the GPCM
controls.
CLKOUT
B39
AS
B40
A[0:31],
TSIZ[0:1],
R/W
B22
CSx
Figure 22. Asynchronous External Master Memory Access Timing (GPCM Controlled—ACS = 00)
Figure 23 provides the timing for the asynchronous external master control signals negation.
AS
B43
CSx, WE[0:3],
OE, GPLx,
BS[0:3]
Figure 23. Asynchronous External Master—Control Signals Negation Timing
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
33
Bus Signal Timing
Table 10 provides interrupt timing for the MPC852T.
.
Table 10. Interrupt Timing
All Frequencies
Characteristic1
Num
Unit
Min
1
Max
I39
IRQx valid to CLKOUT rising edge (set up time)
6.00
ns
I40
IRQx hold time after CLKOUT
2.00
ns
I41
IRQx pulse width low
3.00
ns
I42
IRQx pulse width high
3.00
ns
I43
IRQx edge-to-edge time
4 × TCLOCKOUT
—
The timings I39 and I40 describe the testing conditions under which the IRQ lines are tested when being defined as
level-sensitive. The IRQ lines are synchronized internally and need not be asserted or negated with reference to the CLKOUT.
The timings I41, I42, and I43 are specified to allow the correct function of the IRQ lines detection circuitry, and have no direct
relation with the total system interrupt latency that the MPC852T is able to support.
Figure 24 provides the interrupt detection timing for the external level-sensitive lines.
CLKOUT
I39
I40
IRQx
Figure 24. Interrupt Detection Timing for External Level Sensitive Lines
Figure 25 provides the interrupt detection timing for the external edge-sensitive lines.
CLKOUT
I41
I42
IRQx
I43
I43
Figure 25. Interrupt Detection Timing for External Edge Sensitive Lines
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
34
Freescale Semiconductor
Bus Signal Timing
Table 11 shows the PCMCIA timing for the MPC852T.
Table 11. PCMCIA Timing
33 MHz
Num
50 MHz
66 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
A(0:31), REG valid to PCMCIA Strobe
asserted.1 (MIN = 0.75 × B1 – 2.00)
20.70
—
16.70
—
13.00
—
9.40
—
ns
J83
A(0:31), REG valid to ALE negation.1
(MIN = 1.00 × B1 – 2.00)
28.30
—
23.00
—
18.00
—
13.20
—
ns
J84
CLKOUT to REG valid
(MAX = 0.25 × B1 + 8.00)
7.60
15.60
6.30
14.30
5.00
13.00
3.80
11.80
ns
J85
CLKOUT to REG Invalid.
(MIN = 0.25 × B1 + 1.00)
8.60
—
7.30
—
6.00
—
4.80
—
ns
J86
CLKOUT to CE1, CE2 asserted.
(MAX = 0.25 × B1 + 8.00)
7.60
15.60
6.30
14.30
5.00
13.00
3.80
11.80
ns
J87
CLKOUT to CE1, CE2 negated.
(MAX = 0.25 × B1 + 8.00)
7.60
15.60
6.30
14.30
5.00
13.00
3.80
11.80
ns
J88
CLKOUT to PCOE, IORD, PCWE, IOWR
assert time. (MAX = 0.00 × B1 + 11.00)
—
11.00
—
11.00
—
11.00
—
11.00
ns
J89
CLKOUT to PCOE, IORD, PCWE, IOWR
negate time. (MAX = 0.00 × B1 + 11.00)
2.00
11.00
2.00
11.00
2.00
11.00
2.00
11.00
ns
J90
CLKOUT to ALE assert time
(MAX = 0.25 × B1 + 6.30)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
J91
CLKOUT to ALE negate time
(MAX = 0.25 × B1 + 8.00)
—
15.60
—
14.30
—
13.00
—
11.80
ns
J92
PCWE, IOWR negated to D(0:31) invalid.1
(MIN = 0.25 × B1 – 2.00)
5.60
—
4.30
—
3.00
—
1.80
—
ns
J93
WAITA and WAITB valid to CLKOUT rising
edge.1 (MIN = 0.00 × B1 + 8.00)
8.00
—
8.00
—
8.00
—
8.00
—
ns
J94
CLKOUT rising edge to WAITA and WAITB
invalid.1 (MIN = 0.00 × B1 + 2.00)
2.00
—
2.00
—
2.00
—
2.00
—
ns
J82
1
40 MHz
Characteristic
PSST = 1. Otherwise add PSST times cycle time.
PSHT = 0. Otherwise add PSHT times cycle time.
These synchronous timings define when the WAITA signals are detected in order to freeze (or relieve) the
PCMCIA current cycle. The WAITA assertion is effective only if it is detected 2 cycles before the PSL
timer expiration. See the PCMCIA Interface section in the MPC866 PowerQUICC™ Family Reference
Manual.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
35
Bus Signal Timing
Figure 26 provides the PCMCIA access cycle timing for the external bus read.
CLKOUT
TS
P44
A[0:31]
P46
P45
P47
REG
P48
P49
CE1/CE2
P50
P51
P53
P52
PCOE, IORD
P52
ALE
B18
B19
D[0:31]
Figure 26. PCMCIA Access Cycles Timing External Bus Read
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
36
Freescale Semiconductor
Bus Signal Timing
Figure 27 provides the PCMCIA access cycle timing for the external bus write.
CLKOUT
TS
P44
A[0:31]
P46
P45
P47
REG
P48
P49
CE1/CE2
P50
P51
P53
P52
B8
B9
P54
PCWE, IOWR
P52
ALE
D[0:31]
Figure 27. PCMCIA Access Cycles Timing External Bus Write
Figure 28 provides the PCMCIA WAIT signals detection timing.
CLKOUT
P55
P56
WAITA
Figure 28. PCMCIA WAIT Signals Detection Timing
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
37
Bus Signal Timing
Table 12 shows the PCMCIA port timing for the MPC852T.
Table 12. PCMCIA Port Timing
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
—
19.00
—
19.00
—
19.00
—
19.00
ns
J95
CLKOUT to OPx Valid
(MAX = 0.00 × B1 + 19.00)
J96
HRESET negated to OPx drive1
(MIN = 0.75 × B1 + 3.00)
25.70
—
21.70
—
18.00
—
14.40
—
ns
J97
IP_Xx valid to CLKOUT rising edge
(MIN = 0.00 × B1 + 5.00)
5.00
—
5.00
—
5.00
—
5.00
—
ns
J98
CLKOUT rising edge to IP_Xx invalid
(MIN = 0.00 × B1 + 1.00)
1.00
—
1.00
—
1.00
—
1.00
—
ns
1
OP2 and OP3 only.
Figure 29 provides the PCMCIA output port timing for the MPC852T.
CLKOUT
P57
Output
Signals
HRESET
P58
OP2, OP3
Figure 29. PCMCIA Output Port Timing
Figure 30 provides the PCMCIA output port timing for the MPC852T.
CLKOUT
P59
P60
Input
Signals
Figure 30. PCMCIA Input Port Timing
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
38
Freescale Semiconductor
Bus Signal Timing
Table 13 shows the debug port timing for the MPC852T.
Table 13. Debug Port Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
3 × TCLOCKOUT
—
—
J82
DSCK cycle time
J83
DSCK clock pulse width
1.25 × TCLOCKOUT
—
—
J84
DSCK rise and fall times
0.00
3.00
ns
J85
DSDI input data setup time
8.00
—
ns
J86
DSDI data hold time
5.00
—
ns
J87
DSCK low to DSDO data valid
0.00
15.00
ns
J88
DSCK low to DSDO invalid
0.00
2.00
ns
Figure 31 provides the input timing for the debug port clock.
DSCK
D61
D62
D61
D62
D63
D63
Figure 31. Debug Port Clock Input Timing
Figure 32 provides the timing for the debug port.
DSCK
D64
D65
DSDI
D66
D67
DSDO
Figure 32. Debug Port Timings
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
39
Bus Signal Timing
Table 14 shows the reset timing for the MPC852T.
Table 14. Reset Timing
33 MHz
Num
40 MHz
50 MHz
66 MHz
Characteristic
Unit
Min
Max
Min
Max
Min
Max
Min
Max
J82
CLKOUT to HRESET high impedance
(MAX = 0.00 × B1 + 20.00)
—
20.00
—
20.00
—
20.00
—
20.00
ns
J83
CLKOUT to SRESET high impedance
(MAX = 0.00 × B1 + 20.00)
—
20.00
—
20.00
—
20.00
—
20.00
ns
J84
RSTCONF pulse width (MIN = 17.00 × B1) 515.20
—
425.00
—
340.00
—
257.60
—
ns
J85
—
—
—
—
—
—
—
—
—
J86
Configuration data to HRESET rising edge 504.50
set up time (MIN = 15.00 × B1 + 50.00)
—
425.00
—
350.00
—
277.30
—
ns
J87
Configuration data to RSTCONF rising
edge set up time
(MIN = 0.00 × B1 + 350.00)
350.00
—
350.00
—
350.00
—
350.00
—
ns
J88
Configuration data hold time after
RSTCONF negation
(MIN = 0.00 × B1 + 0.00)
0.00
—
0.00
—
0.00
—
0.00
—
ns
J89
Configuration data hold time after
HRESET negation
(MIN = 0.00 × B1 + 0.00)
0.00
—
0.00
—
0.00
—
0.00
—
ns
J90
HRESET and RSTCONF asserted to data
out drive (MAX = 0.00 × B1 + 25.00)
—
25.00
—
25.00
—
25.00
—
25.00
ns
J91
RSTCONF negated to data out high
impedance. (MAX = 0.00 × B1 + 25.00)
—
25.00
—
25.00
—
25.00
—
25.00
ns
J92
CLKOUT of last rising edge before chip
three-states HRESET to data out high
impedance. (MAX = 0.00 × B1 + 25.00)
—
25.00
—
25.00
—
25.00
—
25.00
ns
J93
DSDI, DSCK set up (MIN = 3.00 × B1)
90.90
—
75.00
—
60.00
—
45.50
—
ns
J94
DSDI, DSCK hold time
(MIN = 0.00 × B1 + 0.00)
0.00
—
0.00
—
0.00
—
0.00
—
ns
J95
SRESET negated to CLKOUT rising edge 242.40
for DSDI and DSCK sample
(MIN = 8.00 × B1)
—
200.00
—
160.00
—
121.20
—
ns
—
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
40
Freescale Semiconductor
Bus Signal Timing
Figure 33 shows the reset timing for the data bus configuration.
HRESET
R71
R76
RSTCONF
R73
R74
R75
D[0:31] (IN)
Figure 33. Reset Timing—Configuration from Data Bus
Figure 34 provides the reset timing for the data bus weak drive during configuration.
CLKOUT
R69
HRESET
R79
RSTCONF
R77
R78
D[0:31] (OUT)
(Weak)
Figure 34. Reset Timing—Data Bus Weak Drive During Configuration
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
41
IEEE 1149.1 Electrical Specifications
Figure 35 provides the reset timing for the debug port configuration.
CLKOUT
R70
R82
SRESET
R80
R80
R81
R81
DSCK, DSDI
Figure 35. Reset Timing—Debug Port Configuration
13 IEEE 1149.1 Electrical Specifications
Table 15 provides the JTAG timings for the MPC852T shown in Figure 36 through Figure 39.
Table 15. JTAG Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
J82
TCK cycle time
100.00
—
ns
J83
TCK clock pulse width measured at 1.5 V
40.00
—
ns
J84
TCK rise and fall times
0.00
10.00
ns
J85
TMS, TDI data setup time
5.00
—
ns
J86
TMS, TDI data hold time
25.00
—
ns
J87
TCK low to TDO data valid
—
27.00
ns
J88
TCK low to TDO data invalid
0.00
—
ns
J89
TCK low to TDO high impedance
—
20.00
ns
J90
TRST assert time
100.00
—
ns
J91
TRST setup time to TCK low
40.00
—
ns
J92
TCK falling edge to output valid
—
50.00
ns
J93
TCK falling edge to output valid out of high impedance
—
50.00
ns
J94
TCK falling edge to output high impedance
—
50.00
ns
J95
Boundary scan input valid to TCK rising edge
50.00
—
ns
J96
TCK rising edge to boundary scan input invalid
50.00
—
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
42
Freescale Semiconductor
IEEE 1149.1 Electrical Specifications
TCK
J82
J83
J82
J83
J84
J84
Figure 36. JTAG Test Clock Input Timing
TCK
J85
J86
TMS, TDI
J87
J88
J89
TDO
Figure 37. JTAG Test Access Port Timing Diagram
TCK
J91
J90
TRST
Figure 38. JTAG TRST Timing Diagram
TCK
J92
J94
Output
Signals
J93
Output
Signals
J95
J96
Output
Signals
Figure 39. Boundary Scan (JTAG) Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
43
CPM Electrical Characteristics
14 CPM Electrical Characteristics
This section provides the AC and DC electrical specifications for the communications processor module
(CPM) of the MPC852T.
14.1
Port C Interrupt AC Electrical Specifications
Table 16 provides the timings for port C interrupts.
Table 16. Port C Interrupt Timing
33.34 MHz
Num
Characteristic
Unit
Min
Max
35
Port C interrupt pulse width low (edge-triggered mode)
55
—
ns
36
Port C interrupt minimum time between active edges
55
—
ns
Figure 40 shows the port C interrupt detection timing.
36
Port C
(Input)
35
Figure 40. Port C Interrupt Detection Timing
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
44
Freescale Semiconductor
CPM Electrical Characteristics
14.2
IDMA Controller AC Electrical Specifications
Table 17 provides the IDMA controller timings as shown in Figure 41 through Figure 44.
Table 17. IDMA Controller Timing
All Frequencies
Num
40
1
Characteristic
Unit
Min
Max
7
—
ns
3
—
ns
DREQ setup time to clock high
1
41
DREQ hold time from clock high
42
SDACK assertion delay from clock high
—
12
ns
43
SDACK negation delay from clock low
—
12
ns
44
SDACK negation delay from TA low
—
20
ns
45
SDACK negation delay from clock high
—
15
ns
46
TA assertion to rising edge of the clock setup time (applies to external TA)
7
—
ns
Applies to high-to-low mode (EDM = 1).
CLKO
(Output)
41
40
DREQ
(Input)
Figure 41. IDMA External Requests Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
45
CPM Electrical Characteristics
CLKO
(Output)
TS
(Output)
R/W
(Output)
42
43
DATA
46
TA
(Input)
SDACK
Figure 42. SDACK Timing Diagram—Peripheral Write, Externally-Generated TA
CLKO
(Output)
TS
(Output)
R/W
(Output)
42
44
DATA
TA
(Output)
SDACK
Figure 43. SDACK Timing Diagram—Peripheral Write, Internally-Generated TA
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
46
Freescale Semiconductor
CPM Electrical Characteristics
CLKO
(Output)
TS
(Output)
R/W
(Output)
42
45
DATA
TA
(Output)
SDACK
Figure 44. SDACK Timing Diagram—Peripheral Read, Internally-Generated TA
14.3
Baud Rate Generator AC Electrical Specifications
Table 18 provides the baud rate generator timings as shown in Figure 45.
Table 18. Baud Rate Generator Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
50
BRGO rise and fall time
—
10
ns
51
BRGO duty cycle
40
60
%
52
BRGO cycle
40
—
ns
50
50
BRGOX
51
51
52
Figure 45. Baud Rate Generator Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
47
CPM Electrical Characteristics
14.4
Timer AC Electrical Specifications
Table 19 provides the general-purpose timer timings as shown in Figure 46.
Table 19. Timer Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
61
TIN/TGATE rise and fall time
10
—
ns
62
TIN/TGATE low time
1
—
clk
63
TIN/TGATE high time
2
—
clk
64
TIN/TGATE cycle time
3
—
clk
65
CLKO low to TOUT valid
3
25
ns
CLKO
60
61
63
62
TIN/TGATE
(Input)
61
64
65
TOUT
(Output)
Figure 46. CPM General-Purpose Timers Timing Diagram
14.5
SCC in NMSI Mode Electrical Specifications
Table 20 provides the NMSI external clock timing.
Table 20. NMSI External Clock Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
1/SYNCCLK
—
ns
1/SYNCCLK + 5
—
ns
—
15.00
ns
100
RCLK3 and TCLK3 width high1
101
RCLK3 and TCLK3 width low
102
RCLK3 and TCLK3 rise/fall time
103
TXD3 active delay (from TCLK3 falling edge)
0.00
50.00
ns
104
RTS3 active/inactive delay (from TCLK3 falling edge)
0.00
50.00
ns
105
CTS3 setup time to TCLK3 rising edge
5.00
—
ns
106
RXD3 setup time to RCLK3 rising edge
5.00
—
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
48
Freescale Semiconductor
CPM Electrical Characteristics
Table 20. NMSI External Clock Timing (continued)
All Frequencies
Num
1
2
Characteristic
Unit
Min
Max
107
RXD3 hold time from RCLK3 rising edge2
5.00
—
ns
108
CD3 setup Time to RCLK3 rising edge
5.00
—
ns
The ratios SyncCLK/RCLK3 and SyncCLK/TCLK3 must be greater than or equal to 2.25/1.
Also applies to CD and CTS hold time when they are used as an external sync signal.
Table 21 provides the NMSI internal clock timing.
Table 21. NMSI Internal Clock Timing
All Frequencies
Num
1
2
Characteristic
Unit
Min
Max
100
RCLK3 and TCLK3 frequency1
0.00
SYNCCLK/3
MHz
102
RCLK3 and TCLK3 rise/fall time
—
—
ns
103
TXD3 active delay (from TCLK3 falling edge)
0.00
30.00
ns
104
RTS3 active/inactive delay (from TCLK3 falling edge)
0.00
30.00
ns
105
CTS3 setup time to TCLK3 rising edge
40.00
—
ns
106
RXD3 setup time to RCLK3 rising edge
40.00
—
ns
107
RXD3 hold time from RCLK3 rising edge2
0.00
—
ns
108
CD3 setup time to RCLK3 rising edge
40.00
—
ns
The ratios SyncCLK/RCLK3 and SyncCLK/TCLK3 must be greater or equal to 3/1.
Also applies to CD and CTS hold time when they are used as an external sync signals.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
49
CPM Electrical Characteristics
Figure 47 through Figure 49 show the NMSI timings.
RCLK3
102
102
101
106
100
RxD3
(Input)
107
108
CD3
(Input)
107
CD3
(SYNC Input)
Figure 47. SCC NMSI Receive Timing Diagram
TCLK3
102
102
101
100
TxD3
(Output)
103
105
RTS3
(Output)
104
104
CTS3
(Input)
107
CTS3
(SYNC Input)
Figure 48. SCC NMSI Transmit Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
50
Freescale Semiconductor
CPM Electrical Characteristics
TCLK3
102
102
101
100
TxD3
(Output)
103
RTS3
(Output)
104
107
104
105
CTS3
(Echo Input)
Figure 49. HDLC Bus Timing Diagram
14.6
Ethernet Electrical Specifications
Table 22 provides the Ethernet timings as shown in Figure 50 through Figure 54.
Table 22. Ethernet Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
120
CLSN width high
40
—
ns
121
RCLK3 rise/fall time
—
15
ns
122
RCLK3 width low
40
—
ns
123
RCLK3 clock period1
80
120
ns
124
RXD3 setup time
20
—
ns
125
RXD3 hold time
5
—
ns
126
RENA active delay (from RCLK3 rising edge of the last data bit)
10
—
ns
127
RENA width low
100
—
ns
128
TCLK3 rise/fall time
—
15
ns
129
TCLK3 width low
40
—
ns
99
101
ns
period1
130
TCLK3 clock
131
TXD3 active delay (from TCLK3 rising edge)
—
50
ns
132
TXD3 inactive delay (from TCLK3 rising edge)
6.5
50
ns
133
TENA active delay (from TCLK3 rising edge)
10
50
ns
134
TENA inactive delay (from TCLK3 rising edge)
10
50
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
51
CPM Electrical Characteristics
Table 22. Ethernet Timing (continued)
All Frequencies
Num
1
2
Characteristic
Unit
Min
Max
135
RSTRT active delay (from TCLK3 falling edge)
10
50
ns
136
RSTRT inactive delay (from TCLK3 falling edge)
10
50
ns
137
REJECT width low
1
—
CLK
138
CLKO1 low to SDACK asserted
2
—
20
ns
139
CLKO1 low to SDACK negated 2
—
20
ns
The ratios SyncCLK/RCLK3 and SyncCLK/TCLK3 must be greater or equal to 2/1.
SDACK is asserted whenever the SDMA writes the incoming frame DA into memory.
CLSN(CTS1)
(Input)
120
Figure 50. Ethernet Collision Timing Diagram
RCLK3
121
121
124
123
RxD3
(Input)
Last Bit
125
126
127
RENA(CD3)
(Input)
Figure 51. Ethernet Receive Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
52
Freescale Semiconductor
CPM Electrical Characteristics
TCLK3
128
128
129
131
121
TxD3
(Output)
132
133
134
TENA(RTS3)
(Input)
RENA(CD3)
(Input)
(Note 2)
Notes:
1. Transmit clock invert (TCI) bit in GSMR is set.
2. If RENA is deasserted before TENA, or RENA is not asserted at all during transmit, the CSL bit is set in the
buffer descriptor at the end of the frame transmission.
Figure 52. Ethernet Transmit Timing Diagram
RCLK3
RxD3
(Input)
0
1
1
BIT1
Start Frame De-
BIT2
136
125
RSTRT
(Output)
Figure 53. CAM Interface Receive Start Timing Diagram
REJECT
137
Figure 54. CAM Interface REJECT Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
53
CPM Electrical Characteristics
14.7
SPI Master AC Electrical Specifications
Table 23 provides the SPI master timings as shown in Figure 55 and Figure 56.
Table 23. SPI Master Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
160
MASTER cycle time
4
1024
tcyc
161
MASTER clock (SCK) high or low time
2
512
tcyc
162
MASTER data setup time (inputs)
15
—
ns
163
Master data hold time (inputs)
0
—
ns
164
Master data valid (after SCK edge)
—
10
ns
165
Master data hold time (outputs)
0
—
ns
166
Rise time output
—
15
ns
167
Fall time output
—
15
ns
SPICLK
(CI = 0)
(Output)
161
167
161
166
160
SPICLK
(CI = 1)
(Output)
163
167
162
SPIMISO
(Input)
msb
166
Data
165
lsb
msb
164
167
SPIMOSI
(Output)
166
msb
Data
lsb
msb
Figure 55. SPI Master (CP = 0) Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
54
Freescale Semiconductor
CPM Electrical Characteristics
SPICLK
(CI=0)
(Output)
161
167
166
161
160
SPICLK
(CI=1)
(Output)
163
167
162
166
SPIMISO
(Input)
msb
Data
165
lsb
msb
164
167
SPIMOSI
(Output)
166
msb
Data
lsb
msb
Figure 56. SPI Master (CP = 1) Timing Diagram
14.8
SPI Slave AC Electrical Specifications
Table 24 provides the SPI slave timings as shown in Figure 57 and Figure 58.
Table 24. SPI Slave Timing
All Frequencies
Num
Characteristic
Unit
Min
Max
170
Slave cycle time
2
—
tcyc
171
Slave enable lead time
15
—
ns
172
Slave enable lag time
15
—
ns
173
Slave clock (SPICLK) high or low time
1
—
tcyc
174
Slave sequential transfer delay (does not require deselect)
1
—
tcyc
175
Slave data setup time (inputs)
20
—
ns
176
Slave data hold time (inputs)
20
—
ns
177
Slave access time
—
50
ns
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
55
CPM Electrical Characteristics
SPISEL
(Input)
172
171
174
SPICLK
(CI = 0)
(Input)
173
182
173
181
170
SPICLK
(CI = 1)
(Input)
177
181
182
180
SPIMISO
(Output)
msb
178
Data
175
lsb
msb
179
176
SPIMOSI
(Input)
Undef
181 182
msb
Data
lsb
msb
Figure 57. SPI Slave (CP = 0) Timing Diagram
SPISEL
(Input)
172
171
174
170
SPICLK
(CI = 0)
(Input)
173
182
181
173
181
SPICLK
(CI = 1)
(Input)
177
182
180
SPIMISO
(Output)
Undef
msb
175
lsb
msb
179
176
SPIMOSI
(Input)
Data
178
msb
181 182
Data
lsb
msb
Figure 58. SPI Slave (CP = 1) Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
56
Freescale Semiconductor
FEC Electrical Characteristics
15 FEC Electrical Characteristics
This section provides the AC electrical specifications for the fast Ethernet controller (FEC). Note that the
timing specifications for the MII signals are independent of system clock frequency (part speed
designation). Also, MII signals use TTL signal levels compatible with devices operating at either 5.0 V or
3.3 V.
15.1
MII Receive Signal Timing (MII_RXD[3:0], MII_RX_DV, MII_RX_ER,
MII_RX_CLK)
The receiver functions correctly up to a MII_RX_CLK maximum frequency of 25MHz +1%. There is no
minimum frequency requirement. In addition, the processor clock frequency must exceed the
MII_RX_CLK frequency –1%.
Table 25 provides information on the MII receive signal timing.
Table 25. MII Receive Signal Timing
Num
Characteristic
Min
Max
Unit
M1
MII_RXD[3:0], MII_RX_DV, MII_RX_ER to MII_RX_CLK setup
5
—
ns
M2
MII_RX_CLK to MII_RXD[3:0], MII_RX_DV, MII_RX_ER hold
5
—
ns
M3
MII_RX_CLK pulse width high
35%
65%
MII_RX_CLK period
M4
MII_RX_CLK pulse width low
35%
65%
MII_RX_CLK period
Figure 59 shows MII receive signal timing.
M3
MII_RX_CLK (Input)
M4
MII_RXD[3:0] (Inputs)
MII_RX_DV
MII_RX_ER
M1
M2
Figure 59. MII Receive Signal Timing Diagram
15.2
MII Transmit Signal Timing (MII_TXD[3:0], MII_TX_EN,
MII_TX_ER, MII_TX_CLK)
The transmitter functions correctly up to a MII_TX_CLK maximum frequency of 25 MHz + 1%. There is
no minimum frequency requirement. In addition, the processor clock frequency must exceed the
MII_TX_CLK frequency – 1%.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
57
FEC Electrical Characteristics
Table 26 provides information about the MII transmit signal timing,.
Table 26. MII Transmit Signal Timing
Num
Characteristic
Min
Max
Unit
M5
MII_TX_CLK to MII_TXD[3:0], MII_TX_EN, MII_TX_ER invalid
5
—
ns
M6
MII_TX_CLK to MII_TXD[3:0], MII_TX_EN, MII_TX_ER valid
—
25
—
M7
MII_TX_CLK pulse width high
35%
65%
MII_TX_CLK period
M8
MII_TX_CLK pulse width low
35%
65%
MII_TX_CLK period
Figure 60 shows the MII transmit signal timing diagram.
M7
MII_TX_CLK (Input)
M5
M8
MII_TXD[3:0] (Outputs)
MII_TX_EN
MII_TX_ER
M6
Figure 60. MII Transmit Signal Timing Diagram
15.3
MII Async Inputs Signal Timing (MII_CRS, MII_COL)
Table 27 provides information about the MII async inputs signal timing.
Table 27. MII Async Inputs Signal Timing
Num
M9
Characteristic
MII_CRS, MII_COL minimum pulse width
Min
Max
Unit
1.5
—
MII_TX_CLK period
Figure 61 shows the MII asynchronous inputs signal timing diagram.
MII_CRS, MII_COL
M9
Figure 61. MII Async Inputs Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
58
Freescale Semiconductor
FEC Electrical Characteristics
15.4
MII Serial Management Channel Timing (MII_MDIO, MII_MDC)
Table 28 provides information on the MII serial management channel signal timing. The FEC functions
correctly with a maximum MDC frequency in excess of 2.5 MHz. The exact upper bound is under
investigation.
Table 28. MII Serial Management Channel Timing
Num
Characteristic
Min
Max
Unit
M10
MII_MDC falling edge to MII_MDIO output invalid (minimum propagation
delay)
0
—
ns
M11
MII_MDC falling edge to MII_MDIO output valid (max prop delay)
—
25
ns
M12
MII_MDIO (input) to MII_MDC rising edge setup
10
—
ns
M13
MII_MDIO (input) to MII_MDC rising edge hold
0
—
ns
M14
MII_MDC pulse width high
40%
60%
MII_MDC period
M15
MII_MDC pulse width low
40%
60%
MII_MDC period
Figure 62 shows the MII serial management channel timing diagram.
M14
MM15
MII_MDC (Output)
M10
MII_MDIO (Output)
M11
MII_MDIO (Input)
M12
M13
Figure 62. MII Serial Management Channel Timing Diagram
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
59
Mechanical Data and Ordering Information
16 Mechanical Data and Ordering Information
Table 29 identifies the packages and operating frequencies orderable for the MPC852T.
Table 29. MPC852T Package/Frequency Orderable
Package Type
Plastic ball grid array
(VR and ZT suffix)
Plastic ball grid array
(CVR and CZTsuffix)
16.1
Temperature (Tj)
Frequency (MHz)
0°C to 95°C
50
MPC852TVR50A
MPC852TZT50A
66
MPC852TVR66A
MPC852TZT66A
80
MPC852TVR80A
MPC852TZT80A
100
MPC852TVR100A
MPC852TZT100A
50
MPC852TCVR50A
MPC852TCZT50A
66
MPC852TCVR66A
MPC852TCZT66A
80
MPC852TCVR80A
MPC852TCZT80A
100
MPC852TCVR100A
MPC852TCZT100A
–40°C to 100°C
Order Number
Pin Assignments
The following sections give the pinout and pin listing for the JEDEC compliant and the non-JEDEC
versions of the 16 × 16 PBGA package.
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
60
Freescale Semiconductor
Mechanical Data and Ordering Information
16.1.1
JEDEC Compliant Pinout
Figure 63 shows the JEDEC pinout of the PBGA package as viewed from the top surface. For additional
information, see the MPC866 PowerQUICC™ Family Reference Manual.
NOTE: This is the top view of the device.
A
N/C
CS1
WR
CS0
CS7 GPL_A2 WE2
BS_A0 VDDL
A28
A18
A23
A19
A14
A7
A2
A1
N/C
CE2_A GPL_A3 WE3 MII_CRS BS_A3
A22
A30
A29
A27
A13
A9
A6
A0
N/C
B
C
VDDL GPL_A4 CS3
CS5 GPL_A0 WE1
BS_A2
A26
A25
A21
A17
A12
A8
A3
N/C
PC15
CS6
WE0
BS_A1
A31
A24
A20
A15
A10
A4
N/C
PB29
VDDL
CS4
TSIZ1
TSIZ0
A16
A11
A5
N/C
PB31
PC13
PC12
PA11
D
BDIP
BI
CS2
BR
TS
TEA GPL_A5 CE_1A
CR
MII_COL
OE
E
F
BB
TA
PB30
TDO
TMS
TRST
BURST
BG
PB28
TDI
VDDL
MDIO
ALE_A DSCK VFLS_0
FRZ
TCK
PB25
PA10
PB24
PC5
PC7
PA8
PA9
VDDH PD13
PA2
PC6
PA3
N/C
PC4
PA1
PB15
G
VFLS_1 RSV
H
GND
J
KR
AS BADDR30 HRESET
K
OP0
OP1
OP2 RSTCONF
L
OP3 BADDR29 BADDR28 VDDL
M
D26
D14
D9
IRQ1
PD3
PD8
PD15
VDDL
PA0
XTAL EXTCLK WAIT_A VSSSYN IP_A5 CLKOUT D25
D21
D15
D10
D17
IRQ7
PD6
PD9
PD12
PD14
PORST VDDSYN VSSSYN1 DP0 DP1
EXTAL VDDL SRESET
N/C
IP_A3
IP_A1
IP_A6
N
P
D29
D24
D20
D16
D11
D23
D12
IRQ0
PD4
N/C
PD11
PD5
R
VDDL IP_A7
IP_A2
DP3
D31
D28
D6
D19
D5
D2
D27
D13
D0
PD10
N/C
N/C
IP_A0
IP_A4
DP2
D30
D7
D22
VDDL
D18
D3
D1
D4
D8 MII_TXEN PD7
N/C
1
2
3
4
5
6
7
8
9
10
11
12
T
13
14
15
16
Figure 63. Pinout of PBGA Package—JEDEC Standard
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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61
Mechanical Data and Ordering Information
Table 30 contains a list of the MPC852T input and output signals and shows multiplexing and pin
assignments.
Table 30. Pin Assignments—JEDEC Standard
Name
Pin Number
Type
A[0:31]
B15, A15, A14, C14, D13, E11, B14, A13, C13, B13, D12, E10, C12, Bidirectional
B12, A12, D11, E9, C11, A9, A11, D10, C10, B8, A10, D9, C9, C8, Three-state (3.3 V only)
B11, A8, B10, B9, D8
TSIZ0, REG
E8
Bidirectional
Three-state (3.3 V only)
TSIZ1
E7
Bidirectional
Three-state (3.3 V only)
RD/WR
B1
Bidirectional
Three-state (3.3 V only)
BURST
G3
Bidirectional
Three-state (3.3 V only)
BDIP, GPL_B5
D1
Output
TS
E2
Bidirectional
Active Pull-up (3.3 V only)
TA
F4
Bidirectional
Active Pull-up (3.3 V only)
TEA
E3
Open-drain
BI
D2
Bidirectional
Active Pull-up (3.3 V only)
IRQ2
RSV
G2
Bidirectional
Three-state (3.3 V only)
IRQ4, KR, RETRY,
SPKROUT
J1
Bidirectional
Three-state (3.3 V only)
CR, IRQ3
F1
Input (3.3 V only)
D[0:31]
R13, T11, R10, T10, T12, R9, R7, T6, T13, M10, N10, P10, P12,
R12, M9, N9, P9, N11, T9, R8, P8, N8, T7, P11, P7, N7, M8, R11,
R6, P6, T5, R5
Bidirectional
Three-state (3.3 V only)
DP0, IRQ3
P4
Bidirectional
Three-state (3.3 V only)
DP1, IRQ4
P5
Bidirectional
Three-state (3.3 V only)
DP2, IRQ5
T4
Bidirectional
Three-state (3.3 V only)
DP3, IRQ6
R4
Bidirectional
Three-state (3.3 V only)
BR
E1
Bidirectional (3.3 V only)
BG
G4
Bidirectional (3.3 V only)
BB
F3
Bidirectional
Active pull-up (3.3 V only)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Mechanical Data and Ordering Information
Table 30. Pin Assignments—JEDEC Standard (continued)
Name
Pin Number
Type
FRZ
IRQ6
H4
Bidirectional (3.3 V only)
IRQ0
P13
Input (3.3 V only)
IRQ1
M11
Input (3.3 V only)
M_TX_CLK
IRQ7
N12
Input (3.3 V only)
CS[0:5]
B2, A2, D3, C3, E6, C4
Output
CS6
D4
Output
CS7
A3
Output
WE0
BS_B0
IORD
D6
Output
WE1
BS_B1
IOWR
C6
Output
WE2
BS_B2
PCOE
A5
Output
WE3
BS_B3
PCWE
B5
Output
BS_A[0:3]
A6, D7, C7, B7
Output
GPL_A0
GPL_B0
C5
Output
OE
GPL_A1
GPL_B1
D5
Output
GPL_A[2:3]
GPL_B[2:3]
CS[2–3]
A4, B4
Output
UPWAITA
GPL_A4
C2
Bidirectional (3.3 V only)
GPL_A5
E4
Output
PORESET
P1
Input (3.3 V only)
RSTCONF
K4
Input (3.3 V only)
HRESET
J4
Open-drain
SRESET
M3
Open-drain
XTAL
N1
Analog Output
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
63
Mechanical Data and Ordering Information
Table 30. Pin Assignments—JEDEC Standard (continued)
Name
Pin Number
Type
EXTAL
M1
Analog Input (1.8 V only)
CLKOUT
N6
Output
EXTCLK
N2
Input (1.8 V only)
ALE_A
H1
Output
CE1_A
E5
Output
CE2_A
B3
Output
WAIT_A
N3
Input (3.3 V only)
IP_A0
T2
Input (3.3 V only)
IP_A1
M6
Input (3.3 V only)
IP_A2, IOIS16_A
R3
Input (3.3 V only)
IP_A3
M5
Input (3.3 V only)
IP_A4
T3
Input (3.3 V only)
IP_A5
N5
Input (3.3 V only)
IP_A6
M7
Input (3.3 V only)
IP_A7
R2
Input (3.3 V only)
DSCK
H2
Bidirectional
Three-state (3.3 V only)
IWP[0:1], VFLS[0:1]
H3, G1
Bidirectional (3.3 V only)
OP0
K1
Bidirectional (3.3 V only)
OP1
K2
Output
OP2, MODCK1, STS
K3
Bidirectional (3.3 V only)
OP3, MODCK2, DSDO
L1
Bidirectional (3.3 V only)
BADDR[28:29]
L3, L2
Output
BADDR30, REG
J3
Output
AS
J2
Input (3.3 V only)
PA11, RXD3
E16
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PA10, TXD3
H15
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PA9, RXD4
J16
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PA8, TXD4
J15
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Mechanical Data and Ordering Information
Table 30. Pin Assignments—JEDEC Standard (continued)
Name
Pin Number
Type
PA3, CLK5, BRGO3, TIN3
K16
Bidirectional
(5-V tolerant)
PA2, CLK6, TOUT3
K14
Bidirectional
(5-V tolerant)
PA1, CLK7, BRGO4, TIN4
L15
Bidirectional
(5-V tolerant)
PA0, CLK8, TOUT4
M16
Bidirectional
(5-V tolerant)
PB31, SPISEL
E13
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB30, SPICLK
F13
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB29, SPIMOSI
D15
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB28, SPIMISO, BRGO4
G13
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB25, SMTXD1
H14
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB24, SMRXD1
H16
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB15, BRGO3
L16
Bidirectional
(5-V tolerant)
PC15, DREQ0
C16
Bidirectional
(5-V tolerant)
PC13, RTS3
E14
Bidirectional
(5-V tolerant)
PC12, RTS4
E15
Bidirectional
(5-V tolerant)
PC7, CTS3
J14
Bidirectional
(5-V tolerant)
PC6, CD3
K15
Bidirectional
(5-V tolerant)
PC5, CTS4, SDACK1
J13
Bidirectional
(5-V tolerant)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
65
Mechanical Data and Ordering Information
Table 30. Pin Assignments—JEDEC Standard (continued)
Name
Pin Number
Type
PC4, CD4
L14
Bidirectional
(5-V tolerant)
PD15, MII_RXD3
M14
Bidirectional
(5-V tolerant)
PD14, MII_RXD2
N16
Bidirectional
(5-V tolerant)
PD13, MII_RXD1
K13
Bidirectional
(5-V tolerant)
PD12, MII_MDC
N15
Bidirectional
(5-V tolerant)
PD11, RXD3, MII_TX_ER
P16
Bidirectional
(5-V tolerant)
PD10, TXD3, MII_RXD0
R15
Bidirectional
(5-V tolerant)
PD9, RXD4, MII_TXD0
N14
Bidirectional
(5-V tolerant)
PD8, TXD4, MII_RX_CLK
M13
Bidirectional
(5-V tolerant)
PD7, RTS3, MII_RX_ER
T15
Bidirectional
(5-V tolerant)
PD6, RTS4, MII_RX_DV
N13
Bidirectional
(5-V tolerant)
PD5, MII_TXD3
R14
Bidirectional
(5-V tolerant)
PD4, MII_TXD2
P14
Bidirectional
(5-V tolerant)
PD3, MII_TXD1
M12
Bidirectional
(5-V tolerant)
TMS
F15
Input
(5-V tolerant)
TDI, DSDI
G14
Input
(5-V tolerant)
TCK, DSCK
H13
Input
(5-V tolerant)
TRST
F16
Input
(5-V tolerant)
TDO, DSDO
F14
Output
(5-V tolerant)
MII_CRS
B6
Input
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Mechanical Data and Ordering Information
Table 30. Pin Assignments—JEDEC Standard (continued)
Name
Pin Number
Type
MII_MDIO
G16
Bidirectional
(5-V tolerant)
MII_TXEN
T14
Output
(5-V tolerant)
MII_COL
F2
Input
VSSSYN
N4
PLL analog GND
VSSSYN1
P3
PLL analog GND
VDDSYN
P2
PLL analog VDD
GND
G6, G7, G8, G9, G10, G11, H6, H7, H8, H9, H10, H11, J6, J7, J8, J9, Power
J10, J11, K6, K7, K8, K9, K10, K11
VDDL
A7, C1, D16, G15, L4, M2, R1, M15, T8
Power
VDDH
F5, F6, F7, F8, F9, F10, F11, F12, G5, G12, H5, H12, J5, J12,
K5, K12, L5, L6, L7, L8, L9, L10, L11, L12
Power
N/C
A1, A16, B16, C15, D14, E12, L13, M4, P15, R16, T1, T16
No connect
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
67
Mechanical Data and Ordering Information
16.1.2
The non-JEDEC Pinout
Figure 64 shows the non-JEDEC pinout of the PBGA package as viewed from the top surface. For
additional information, see the PowerQUICC™ Family Reference Manual.
NOTE: This figure shows the top view of the device.
B
N/C
CS1
WR
CS0
CS7 GPL_A2 WE2
BS_A0
VDDL
A28
A18
A23
A19
A14
A7
A2
A1
N/C
A22
A30
A29
A27
A13
A9
A6
A0
N/C
C
CE2_A GPL_A3 WE3 MII_CRS BS_A3
D
VDDL GPL_A4 CS3
CS5 GPL_A0 WE1
BS_A2
A26
A25
A21
A17
A12
A8
A3
N/C
PC15
CS6
WE0
BS_A1
A31
A24
A20
A15
A10
A4
N/C
PB29
VDDL
CS4
TSIZ1
TSIZ0
A16
A11
A5
N/C
PB31
PC13
PC12
PA11
E
BDIP
BI
CS2
BR
TS
TEA GPL_A5 CE_1A
CR
MII_COL
OE
F
G
BB
TA
PB30
TDO
TMS
TRST
BURST
BG
PB28
TDI
VDDL
MDIO
ALE_A DSCK VFLS_0
FRZ
TCK
PB25
PA10
PB24
PC5
PC7
PA8
PA9
PD13
PA2
PC6
PA3
N/C
PC4
PA1
PB15
H
VFLS_1 RSV
J
GND
K
KR
AS BADDR30 HRESET
L
OP0
OP1
OP2 RSTCONF
VDDH
M
OP3 BADDR29 BADDR28 VDDL
N
D26
D14
D9
IRQ1
PD3
PD8
PD15
VDDL
PA0
XTAL EXTCLK WAIT_A VSSSYN IP_A5 CLKOUT D25
D21
D15
D10
D17
IRQ7
PD6
PD9
PD12
PD14
PORST VDDSYN VSSSYN1 DP0 DP1
EXTAL VDDL SRESET
N/C
IP_A3
IP_A1
IP_A6
P
R
D29
D24
D20
D16
D11
D23
D12
IRQ0
PD4
N/C
PD11
PD5
T
VDDL IP_A7
IP_A2
DP3
D31
D28
D6
D19
D5
D2
D27
D13
D0
PD10
N/C
N/C
IP_A0
IP_A4
DP2
D30
D7
D22
VDDL
D18
D3
D1
D4
D8 MII_TXEN PD7
N/C
2
3
6
7
8
9
10
11
12
13
14
17
U
4
5
15
16
Figure 64. Pinout of PBGA Package—Non-JEDEC
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Freescale Semiconductor
Mechanical Data and Ordering Information
Table 31 contains a list of the MPC852T input and output signals and shows multiplexing and pin
assignments.
Table 31. Pin Assignments—Non-JEDEC
Name
Pin Number
Type
A[0:31]
C16, B16, B15, D15, E14, F12, C15, B14, D14, C14, E13, F11, D13, Bidirectional
C13, B13, E12, F10, D12, B10, B12, E11, D11, C9, B11, E10, D10, Three-state (3.3 V only)
D9, C12, B9, C11, C10, E9
TSIZ0, REG
F9
Bidirectional
Three-state (3.3 V only)
TSIZ1
F8
Bidirectional
Three-state (3.3 V only)
RD/WR
C2
Bidirectional
Three-state (3.3 V only)
BURST
H4
Bidirectional
Three-state (3.3 V only)
BDIP, GPL_B5
E2
Output
TS
F3
Bidirectional
Active pull-up (3.3 V only)
TA
G5
Bidirectional
Active pull-up (3.3 V only)
TEA
F4
Open-drain
BI
E3
Bidirectional
Active pull-up (3.3 V only)
IRQ2, RSV
H3
Bidirectional
Three-state (3.3 V only)
IRQ4, KR
RETRY, SPKROUT
K2
Bidirectional
Three-state (3.3 V only)
CR, IRQ3
G2
Input (3.3 V only)
D[0:31]
T14, U12, T11, U11, U13, T10, T8, U7, U14, N11, P11, R11, R13,
T13, N10, P10, R10, P12, U10, T9, R9, P9, U8, R12, R8, P8, N9,
T12, T7, R7, U6, T6
Bidirectional
Three-state (3.3 V only)
DP0, IRQ3
R5
Bidirectional
Three-state (3.3 V only)
DP1, IRQ4
R6
Bidirectional
Three-state (3.3 V only)
DP2, IRQ5
U5
Bidirectional
Three-state (3.3 V only)
DP3, IRQ6
T5
Bidirectional
Three-state (3.3 V only)
BR
F2
Bidirectional (3.3 V only)
BG
H5
Bidirectional (3.3 V only)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
69
Mechanical Data and Ordering Information
Table 31. Pin Assignments—Non-JEDEC (continued)
Name
Pin Number
Type
BB
G4
Bidirectional
Active Pull-up (3.3 V only)
FRZ, IRQ6
J5
Bidirectional (3.3 V only)
IRQ0
R14
Input (3.3 V only)
IRQ1
N12
Input (3.3 V only)
IRQ7, M_TX_CLK
P13
Input (3.3 V only)
CS[0:5]
C3, B3, E4, D4, F7, D5
Output
CS6
E5
Output
CS7
B4
Output
WE0, BS_B0, IORD
E7
Output
WE1, BS_B1, IOWR
D7
Output
WE2, BS_B2, PCOE
B6
Output
WE3, BS_B3, PCWE
C6
Output
BS_A[0:3]
B7, E8, D8, C8
Output
GPL_A0, GPL_B0
D6
Output
OE, GPL_A1, GPL_B1
E6
Output
GPL_A[2:3], GPL_B[2:3],
CS[2–3]
B5, C5
Output
UPWAITA, GPL_A4
D3
Bidirectional (3.3 V only)
GPL_A5
F5
Output
PORESET
R2
Input (3.3 V only)
RSTCONF
L5
Input (3.3 V only)
HRESET
K5
Open-drain
SRESET
N4
Open-drain
XTAL
P2
Analog output
EXTAL
N2
Analog input (3.3 V only)
CLKOUT
P7
Output
EXTCLK
P3
Input (3.3 V only)
ALE_A
J2
Output
CE1_A
F6
Output
CE2_A
C4
Output
WAIT_A
P4
Input (3.3 V only)
IP_A0
U3
Input (3.3 V only)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Mechanical Data and Ordering Information
Table 31. Pin Assignments—Non-JEDEC (continued)
Name
Pin Number
Type
IP_A1
N7
Input (3.3 V only)
IP_A2, IOIS16_A
T4
Input (3.3 V only)
IP_A3
N6
Input (3.3 V only)
IP_A4
U4
Input (3.3 V only)
IP_A5
P6
Input (3.3 V only)
IP_A6
N8
Input (3.3 V only)
IP_A7
T3
Input (3.3 V only)
DSCK
J3
Bidirectional
Three-state (3.3 V only)
IWP[0:1], VFLS[0:1]
J4, H2
Bidirectional (3.3 V only)
OP0
L2
Bidirectional (3.3 V only)
OP1
L3
Output
OP2, MODCK1, STS
L4
Bidirectional (3.3 V only)
OP3, MODCK2, DSDO
M2
Bidirectional (3.3 V only)
BADDR[28:29]
M4, M3
Output
BADDR30, REG
K4
Output
AS
K3
Input (3.3 V only)
PA11, RXD3
F17
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PA10, TXD3
J16
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PA9, RXD4
K17
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PA8, TXD4
K16
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PA3, CLK5, BRGO3, TIN3
L17
Bidirectional
(5-V tolerant)
PA2, CLK6, TOUT3
L15
Bidirectional
(5-V tolerant)
PA1, CLK7, BRGO4, TIN4
M16
Bidirectional
(5-V tolerant)
PA0, CLK8, TOUT4
N17
Bidirectional
(5-V tolerant)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
71
Mechanical Data and Ordering Information
Table 31. Pin Assignments—Non-JEDEC (continued)
Name
Pin Number
Type
PB31, SPISEL
F14
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB30, SPICLK
G14
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB29, SPIMOSI
E16
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB28, SPIMISO, BRGO4
H14
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB25, SMTXD1
J15
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB24, SMRXD1
J17
Bidirectional
(Optional: Open-drain)
(5-V tolerant)
PB15, BRGO3
M17
Bidirectional
(5-V tolerant)
PC15, DREQ0
D17
Bidirectional
(5-V tolerant)
PC13, RTS3
F15
Bidirectional
(5-V tolerant)
PC12, RTS4
F16
Bidirectional
(5-V tolerant)
PC7, CTS3
K15
Bidirectional
(5-V tolerant)
PC6, CD3
L16
Bidirectional
(5-V tolerant)
PC5, CTS4, SDACK1
K14
Bidirectional
(5-V tolerant)
PC4, CD4
M15
Bidirectional
(5-V tolerant)
PD15, MII_RXD3
N15
Bidirectional
(5-V tolerant)
PD14, MII_RXD2
P17
Bidirectional
(5-V tolerant)
PD13, MII_RXD1
L14
Bidirectional
(5-V tolerant)
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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Mechanical Data and Ordering Information
Table 31. Pin Assignments—Non-JEDEC (continued)
Name
Pin Number
Type
PD12, MII_MDC
P16
Bidirectional
(5-V tolerant)
PD11, RXD3, MII_TX_ER
R17
Bidirectional
(5-V tolerant)
PD10, TXD3, MII_RXD0
T16
Bidirectional
(5-V tolerant)
PD9, RXD4, MII_TXD0
P15
Bidirectional
(5-V tolerant)
PD8, TXD4, MII_RX_CLK
N14
Bidirectional
(5-V tolerant)
PD7, RTS3, MII_RX_ER
U16
Bidirectional
(5-V tolerant)
PD6, RTS4, MII_RX_DV
P14
Bidirectional
(5-V tolerant)
PD5, MII_TXD3
T15
Bidirectional
(5-V tolerant)
PD4, MII_TXD2
R15
Bidirectional
(5-V tolerant)
PD3, MII_TXD1
N13
Bidirectional
(5-V tolerant)
TMS
G16
Input
(5-V tolerant)
TDI, DSDI
H15
Input
(5-V tolerant)
TCK, DSCK
J14
Input
(5-V tolerant)
TRST
G17
Input
(5-V tolerant)
TDO, DSDO
G15
Output
(5-V tolerant)
MII_CRS
C7
Input
MII_MDIO
H17
Bidirectional
(5-V tolerant)
MII_TX_EN
U15
Output
(5-V tolerant)
MII_COL
G3
Input
VSSSYN
P5
PLL analog GND
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
73
Mechanical Data and Ordering Information
Table 31. Pin Assignments—Non-JEDEC (continued)
Name
Pin Number
Type
VSSSYN1
R4
PLL analog GND
VDDSYN
R3
PLL analog VDD
GND
H7, H8, H9, H10, H11, H12, J7, J8, J9, J10, J11, J12, K7, K8, K9,
K10, K11, K12, L7, L8, L9, L10, L11, L12
Power
VDDL
B8, D2, E17, H16, M5, N3, T2, N16, U9
Power
VDDH
G6, G7, G8, G9, G10, G11, G12, G13, H6, H13, J6, J13, K6, K13,
L6, L13, M6, M7, M8, M9, M10, M11, M12, M13
Power
N/C
B2, B17, C17, D16, E15, F13, M14, N5, R16, T17, U2, U17
No connect
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
74
Freescale Semiconductor
Mechanical Data and Ordering Information
16.2
Mechanical Dimensions of the PBGA Package
For more information on the printed-circuit board layout of the PBGA package, including thermal via
design and suggested pad layout, refer to Plastic Ball Grid Array Application Note (order number:
AN1231) that is available from your local Freescale sales office. Figure 65 shows the mechanical
dimensions of the PBGA package.
Notes:
1. All dimensions are in millimeters.
2. Interpret dimensions and tolerances per ASME Y14.5M—1994.
3. Maximum solder ball diameter measured parallel to datum A.
4. Datum A, the seating plane, is defined by the spherical crowns of the solder balls.
Note: Solder sphere composition is 95.5%Sn 45%Ag 0.5%Cu for MPC852TVRXXX.
Solder sphere composition is 62%Sn 36%Pb 2%Ag for MPC852TZTXXX.
Figure 65. Mechanical Dimensions and Bottom Surface Nomenclature of the PBGA Package
MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
Freescale Semiconductor
75
Document Revision History
17 Document Revision History
Table 32 lists significant changes between revisions of this document.
Table 32. Document Revision History
Revision
Date
4
3.1
Changes
• Updated template.
• On page 1, updated first paragraph and added a second paragraph.
• After Table 2, inserted a new figure showing the undershoot/overshoot voltage (Figure 2) and
renumbered the rest of the figures.
• In Table 9, for reset timings B29f and B29g added footnote indicating that the formula only applies
to bus operation up to 50 MHz.
• In Figure 4, changed all reference voltage measurement points from 0.2 and 0.8 V to 50% level.
• In Table 17, changed num 46 description to read, “TA assertion to rising edge ...”
• In Figure 42, changed TA to reflect the rising edge of the clock.
1/18/2005 Document template update.
3.0
11/2004
• Added sentence to Spec B1A about EXTCLK and CLKOUT being in Alignment for Integer Values
• Added a footnote to Spec 41 specifying that EDM = 1
• Broke the Section 16.1, “Pin Assignments,” into 2 smaller sections for the JEDEC and non-JEDEC
pinouts.
2.0
12/2003
Put 852T on the 1st page in place of 8245.
Figure 62 on page 59 had overbars added on signals CR (pin G2) and WAIT_A (pin P4).
1.8
7/2003
Changed the pinout to be JEDEC Compliant, changed timing parameters B28a through B28d, and
B29d to show that TRLX can be 0 or 1.
1.7
5/2003
Changed the SPI Master Timing Specs. 162 and 164
1.6
4/2003
Changed the package drawing in Figure 15-63
1.5
4/2003
Changed 5 Port C pins with interrupt capability to 7 Port C pins. Added the Note: solder sphere
composition for MPC852TVR and MPC852TCVR devices is 95.5%Sn 45%Ag 0.5%Cu to Figure
15-63
1.4
2/2003
Changed Table 15-30 Pin Assignments for the PLL Pins VSSSYN1, VSSSYN, VDDSYN
1.3
1/2003
Added subscripts to timing diagrams for B1-B35, to specify memory controller settings for the specific
edges.
1.2
1/2003
In Table 15-30, specified EXTCLK as 3.3 V.
1.1
12/2002
Added fast Ethernet controller to the features
1
11/2002
Added values for 80 and 100 MHz
0
10/2002
Initial release
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MPC852T PowerQUICC™ Hardware Specifications, Rev. 4
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79
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Document Number: MPC852TEC
Rev. 4
09/2007
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