MPC862/857T/857DSL
PowerQUICC™ Family
Hardware Specifications
Document Number: MPC862EC
Rev. 3, 2/2006
This document contains detailed information on power
considerations, DC/AC electrical characteristics, and AC
timing specifications for the M PC862/857T/857DSL family
(refer to Table 1 for a list of devices). The MPC862P, which
contains a PowerPC™ core processor, is the superset device
of the MPC862/857T/857DSL family. For functional
characteristics of the processor, refer to the MPC862 PowerQUICC™ Family Users Manual (MPC862UM/D).
The MPC862/857T/857DSL is a derivative of Freescale’s MPC860 PowerQUICC™ family of devices. It
is a versatile single-chip integrated microprocess or and peripheral combination that can be used in a
variety of controller applications and communications and networking systems. The
MPC862/857T/857DSL provides enhanced A T M functionality over that of other A TM-enabled members
of the MPC860 family.
Table 1 shows the functionality supported by the members of the MPC862/857T/857DSL family.
Table 1. MPC862 Family Functionality
CacheEthernet
Part
MPC862P 16 Kbyte8 KbyteUp to 4 1 4 2
MPC862T 4 Kbyte4 KbyteUp to 4 1 4 2
MPC857T 4 Kbyte4 Kbyte1112
MPC857DSL4 Kbyte4 Kbyte111
1
On the MPC857DSL, the SCC (SCC1) is for ethernet only. Also, the MPC857DSL does
not support the Time Slot Assigner (TSA).
2
On the MPC857DSL, the SMC (SMC1) is for UART only.
Instruction
Cache
Data Cache 10T10/100
SCC SMC
1
2
1
2Features
The following list summarizes the key MPC862/857T/857DSL features:
•Embedded single-issue, 32-bit MPC8xx core (implementing the PowerPC architecture) with
thirty-two 32-bit general-purpose registers (GPRs)
— The core performs branch prediction with conditional prefetch, without conditional execution
— 4- or 8-Kbyte data cache and 4- or 16-Kbyte instruction cache (see Table 1).
– 16-Kbyte instruction cache (MPC862P) is four-way, set-associative with 256 sets; 4-Kbyte
instruction cache (MPC862T , MPC857T, and MPC857DSL) is two-way, set-associative
with 128 sets.
– 8-Kbyte data cache (MPC862P) is two-way , set-associative with 256 sets; 4-Kbyte data
cache (MPC862T , MP C857T, and MPC857DSL) is 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
— Advanced on-chip-emulation debug mode
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
2Freescale Semiconductor
Features
•The MPC862/857T/857DSL pr ovides enhanced ATM functionality over that of the MPC860SAR.
The MPC862/857T/857DSL adds major new features available in “enhanced SAR” (ESAR) mode,
including the following:
— Improved operation, administration and maintenance (OAM) support
— OAM performance monitoring (PM) support
— Multiple APC priority levels available to support a range of traffic pace requirements
— ATM port-to-port switching capability without the need for RAM-based microcode
— Simultaneous MII (10/100Base-T) and UTOPIA (half-duplex) capability
— Optional statistical cell counters per PHY
— UTOPIA level 2 compliant interface with added FIFO buffering to reduce the total cell
transmission time. (The earlier UTOPIA level 1 specification is also supported.)
— Multi-PHY support on the MPC857T
— Four PHY support on the MPC857DSL
— Parameter RAM for both SPI and I2C can be relocated without RAM-based microcode
— Supports full-duplex UTOPIA both master (ATM side) and slave (PHY side) operation using
a “split” bus
— AAL2/VBR functionality is ROM-resident
•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
— Eac h bank can be a chip select or RAS to support a DRAM bank
— Up to 30 wait states programmable per memory bank
— Glueless interface to Page mode/EDO/SDRAM, 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, one OE line
— Boot chip-select available at reset (options for 8-, 16-, or 32-bit memory)
— Variable block sizes (32 Kbyte–256 Mbyte)
— Selectable write protection
— On-chip bus arbitration logic
•General-purpose timers
— Four 16-bit timers cascadable to be two 32-bit timers
— Gate mode can enable/disable counting
— Interrupt can be masked on reference match and event capture
•Fast Ethernet controller (FEC)
— Simultaneous MII (10/100Base-T) and UTOPIA operation when using the UTOPIA
multiplexed bus.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor3
Features
•System integration unit (SIU)
— Bus monitor
— S oftware watchdog
— Periodic interrupt timer (PIT)
— Low-power stop mode
— Clock synthesizer
— Decrementer, time base, and real-time clock (RTC) from the PowerPC architecture
— Reset controller
— IEEE 1149.1 test access port (JTAG)
•Interrupts
— Seven external interrupt request (IRQ) lines
— 12 port pins with interrupt capability
— The MPC862P and MPC862T have 23 internal interrupt sources; the MPC857T and
MPC857DSL have 20 internal interrupt sources
— Programmable priority between SCCs (MPC862P and MPC862T)
— Programmable highest priority request
— Supports continuous mode transmission and reception on all serial channels
— Up to 8-Kbytes of dual-port RAM
— The MPC862P and MPC862T have 16 serial DMA (SDMA) channels; the MPC857T and
MPC857DSL have 10 serial DMA (SDMA) channels
— Three parallel I/O registers with open-drain capability
•Four baud rate generators
— Independent (can be connected to any SCC or SMC)
— Allow changes during operation
— Autobaud support option
•The MPC862P and MPC862T have four SCCs (serial communication controller) The MPC857T
and MPC857DSL have one SCC, SCC1; the MPC857DSL supports ethernet only
— Serial ATM capability on all SCCs
— Optional UTOPIA port on SCC4
— Ethernet/IEEE 802.3 optional on SCC1–4, supporting full 10-Mbps operation
— HDLC/SDLC
— HDLC bus (implements an HDLC-based local area network (LAN))
— Asynchronous HDLC to support PPP (point-to-point protocol)
— AppleTalk
4Freescale Semiconductor
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Features
— Univer sal asynchronous receiver transmitter (UART)
— Synchronous UART
— Serial infrared (IrDA)
— Binary synchronous communication (BISYNC)
— Totally transparent (bit streams)
— Totally transparent (frame based with optional cyclic redundancy check (CRC))
•Two SMCs (serial management channels) (The MPC857DSL has one SMC, SMC1 for UART)
— UART
— Transparent
— Gener al circuit i nte rface ( GCI ) controller
— Can be connected to the time-division multiplexed (TDM) channels
•One serial peripheral interface (SPI)
— Supports master and slave modes
— Supports multiple-master operation on the same bus
•One inter-integrat ed circuit (I2C) port
— Supports master and slave modes
— Multiple-master environment support
•Time-slot assigner (TSA) (The MPC857DSL does not have the TSA)
— Allows SCCs and SMCs to run in multiplexed and/or non-multiplexed operation
— Supports T1, CEPT, PCM highway, ISDN basic rate, ISDN primary rate, user defined
— 1- or 8-bit resolution
— Allows independent transmit and receive routing, frame synchronization, clocking
— Allows dynamic changes
— On the MPC862P and MPC862T, can be internal ly connected to six serial channels (four SCCs
and two SMCs); on the MPC857T , can be connected to three serial channels (one SCC and two
SMCs)
•Parallel interface port (PI P)
— Centronics interface support
— Supports fast connection between compatible ports on MPC862/857T/857DSL or MC68360
•PCMCIA interface
— Master (socket) interface, release 2.1 compliant
— Supports one or two PCMCIA sockets dependent upon whether ESAR functionality is enabled
— 8 memory or I/O windows supported
•Low power support
— Full on—All units fully powered
— Doze—Core functional units disabled except tim e base dec rementer , PL L, memory controller,
RTC, and CPM in low-power standby
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor5
Features
— Sleep—All units disabled except RTC, PIT, time base, and decrementer with PLL active for
fast wake up
— Deep sleep—All units disabled including PLL except RTC, PIT, time base, and decrementer.
— Power down mode— All units powered down except PLL, RTC, PIT, time base and
decrementer
•Debug interface
— Eight comparators: four operate on instruction address, two operate on data address, and two
operate on data
— Supports conditions: = ≠ < >
— Eac h watchpoint can generate a break point internally
•3.3 V operation with 5-V TTL compatibility except EXTAL and EXTCLK
•357-pin plastic ball grid array (PBGA) package
•Operation up to 100MHz
The MPC862/857T/857DSL is comprised of three modules that each use the 32-bit internal bus: the
MPC8xx core, the system integration unit (SIU), and the communication processor module (CPM). The
MPC862P/862T block diagram is shown in Figure 1. The MPC857T /857DSL block diagram is s hown in
Figure 2.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
6Freescale Semiconductor
Features
Embedded
MPC8xx
Processor
Core
Fast Ethernet
Controller
DMAs
FIFOs
10/100
Base-T
Media Access
Control
MII
Instruction
Bus
Load/Store
Bus
Parallel I/O
4 Baud Rate
Generators
Parallel Interface Port
and UTOPIA
16-Kbyte*
Instruction Cache
Instruction MMU
32-Entry ITLB
8-Kbyte*
Data Cache
Data MMU
32-Entry DTLB
SCC1
Unified
Bus
4
Interrupt
Timers
Timers
Controllers
32-Bit RISC Controller
and Program
ROM
SCC3SCC4
Time SlotAssigner
Time Slot Assigner
System Interface Unit (SIU)
Bus Interface
8-Kbyte
Dual-Port RAM
Memory Controller
Internal
Unit
System Functions
Real-Time Clock
PCMCIA/ATA Interface
External
Bus Interface
Unit
16
Serial
and
2
Independent
DMA
Channels
I2CSPISMC2SMC1SCC2
Serial Interface
*The MPC862T contains 4-Kbyte instruction cache and 4-Kbyte data cache.
Figure 1. MPC862P/862T Block Diagram
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor7
Maximum Tolerated Ratings
Embedded
MPC8xx
Processor
Core
Fast Ethernet
Controller
DMAs
FIFOs
10/100
Base-T
Media Access
Control
MII
Instruction
Bus
Load/Store
Bus
Parallel I/O
4 Baud Rate
Generators
Parallel Interface Port
and UTOPIA
4-Kbyte
Instruction Cache
Instruction MMU
32-Entry ITLB
4-Kbyte
Data Cache
Data MMU
32-Entry DTLB
SCC1
Unified
Bus
4
Interrupt
Timers
Timers
Controllers
32-Bit RISC Controller
and Program
ROM
Time SlotAssigner
Time Slot Assigner
System Interface Unit (SIU)
Bus Interface
8-Kbyte
Dual-Port RAM
Memory Controller
Internal
Unit
System Functions
Real-Time Clock
PCMCIA/ATA Interface
External
Bus Interface
Unit
10
Serial
and
2
Independent
DMA
Channels
I2CSPISMC2*SMC1
Serial Interface
*The MPC857DSL does not contain SMC2 nor the Time Slot Assigner, and provides eight SDMA controllers.
Figure 2. MPC857T/MPC857DSL Block Diagram
3Maximum Tolerated Ratings
This section provides the maximum tolerated voltage and temperature ranges for the
MPC862/857T/857DSL. Table 2 provides the maximum ratings.
Table 2. Maximum Tolerated Ratings
(GND = 0 V)
RatingSymbolValueUnit
Supply voltage
1
VDDH-0.3 to 4.0V-
VDDL-0.3 to 4.0V-
KAPWR-0.3 to 4.0V-
VDDSYN-0.3 to 4.0V-
Max Freq
(MHz)
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
8Freescale Semiconductor
Table 2. Maximum Tolerated Ratings (continued)
(GND = 0 V)
Maximum Tolerated Ratings
RatingSymbolValueUnit
Input voltage
Temperature
Temperature
Storage temperature rangeT
1
The power supply of the device must start its ramp from 0.0 V.
2
Functional operating conditions are provided with the DC electrical specifications in Ta b le 5 . Absolute maximum
2
3
(standard)
3
(extended)T
4
V
in
T
A(min)
T
j(max)
A(min)
T
j(max)
stg
GND-0.3 to VDDHV-
0°C100
105°C100
-40°C80
115°C80
-55 to +150°C-
Max Freq
(MHz)
ratings are stress ratings only; functional operation at the maxima is not guaranteed. Stress 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 the supply voltage. This restriction
applies to power-up and normal operation (that is, if the MPC862/857T/857DSL is unpowered, voltage greater
than 2.5 V must not be applied to its inputs).
3
Minimum temperatures are guaranteed as ambient temperature, TA. Maximum temperatures are guaranteed as
junction temperature, T
4
JTAG is tested only at ambient, not at standard maximum or extended maximum.
.
j
This device contains circuitry protecting against damage due to high-static voltage or electrical fields;
however, it is advised that normal precautions be taken 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 VCC).
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor9
Thermal Characteristics
4Thermal Characteristics
Table 3 shows the thermal characteristics for the MPC862/857T/857DSL.
Table 3. MPC862/857T/857DSL Thermal Resistance Data
RatingEnvironmentSymbolValueUnit
Junction to ambient
Junction to board
Junction to case
Junction to package top
1
Junction temperature is a function of on-chip power dissipation, package thermal resistance, mounting site
(board) temperature, ambient temperature, air flow, power dissipation of other components on the board,
and board thermal resistance.
2
Per SEMI G38-87 and JEDEC JESD51-2 with the single layer board horizontal.
3
Per JEDEC JESD51-6 with the board horizontal.
4
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.
5
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.
6
Thermal characterization parameter indicating the temperature difference between package top and the
junction temperature per JEDEC JESD51-2.
1
Natural ConvectionSingle layer board (1s)R
Four layer board (2s2p)R
Air flow (200 ft/min)Single layer board (1s)R
Four layer board (2s2p)R
4
5
6
Natural ConvectionΨ
Air flow (200 ft/min)Ψ
θJA
θJMA
θJMA
θJMA
R
θJB
R
θJC
JT
JT
2
3
3
3
37°C/W
23
30
19
13
6
2
2
5Power 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 RevisionFrequencyTypical
0
(1:1 Mode)
A.1, B.0
(1:1 Mode)
50 MHz656735mW
66 MHzTBDTBDmW
50 MHz630760mW
66 MHz8901000mW
1
Maximum
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
10Freescale Semiconductor
2
Unit
Table 4. Power Dissipation (PD) (continued)
DC Characteristics
Die RevisionFrequencyTypical
A.1, B.0
(2:1 Mode)
B.0
(2:1 Mode)
1
Typical power dissipation is measured at 3.3 V.
2
Maximum power dissipation is measured at 3.5 V.
66 MHz9101060mW
80 MHz1.061.20W
100 MHz1.351.54W
1
Maximum
2
NOTE
Values in Table 4 represent VDDL based power dissipation and d o not include I/O
power dissipation over VDDH. I/O power dissipation varies widely by application
due to buffer current, depending on external circuitry.
6DC Characteristics
Table 5 provides the DC electrical characteristics for the MPC862/857T/857DSL.
Table 5. DC Electrical Specifications
CharacteristicSymbolMinMaxUnit
Operating voltageVDDH, VDDL,
KAPWR,
VDDSYN
3.1353.465V
Unit
KAPWR
(power-down
mode)
KAPWR
(all other
operating
modes)
Input High Voltage (all inputs except EXTAL and EXTCLK)VIH2.05.5V
Input Low Voltage
EXTAL, EXTCLK Input High VoltageVIHC0.7*(VCC)VCC+0.3V
Input Leakage Current, Vin = 5.5 V (Except TMS, TRST
DSCK and DSDI pins)
Input Leakage Current, Vin = 3.6 V (Except TMS, TRST
DSCK, and DSDI)
Input Leakage Current, Vin = 0 V (Except TMS, TRST
DSCK, and DSDI pins)
Input Capacitance
Output High Voltage, IOH = -2.0 mA, VDDH = 3.0 V
(Except XTAL, XFC, and Open drain pins)
1
,
,
,
2
VILGND0.8V
I
in
I
In
I
In
C
in
VOH2.4—V
2.03.6V
VDDH – 0.4VDDHV
—100µA
—10µA
—10µA
—20pF
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor11
Thermal Calculation and Measurement
Table 5. DC Electrical Specifications (continued)
CharacteristicSymbolMinMaxUnit
Output Low Voltage
IOL = 2.0 mA (CLKOUT)
IOL = 3.2 mA
IOL = 5.3 mA
IOL = 7.0 mA (TXD1/PA14, TXD2/PA12)
IOL = 8.9 mA (TS
1
VIL(max) for the I2C interface is 0.8 V rather than the 1.5 V as specified in the I2C standard.
The junction-to-ambient thermal resistance is an industry standard value which provides a quick and easy
estimation of thermal perf ormance. However , the answer is only an es timate; test cases have demons trated
that errors of a factor of two (in the quantity T
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
θJA
x PD)
) are possible.
J-TA
12Freescale Semiconductor
Thermal Calculation and Measurement
7.2Estimation with Junction-to-Case Thermal Resistance
Historically , the thermal resist ance has frequently been expressed as the sum of a junction-to-case thermal
resistance and a case-to-ambient thermal resistance:
R
θJA
= R
θJC
+ R
θCA
where:
R
= junction-to-ambient thermal resistance (ºC/W)
θJA
R
= junction-to-case thermal resistance (º C/W)
θJC
= case-to-ambient thermal resistance (ºC/W)
R
θCA
R
is device related and cannot be influenced by the user. The user adjusts the thermal environment to
θJC
affect the case-to-ambient thermal resistance, R
. For instance, the user can change the air flow around
θCA
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.
7.3Estimation with Junction-to-Board Thermal Resistance
A simple package thermal model which 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. It has been observed that the
thermal performance of most plastic packages and especially PBGA packages is strongly dependent on the
board temperature; see Figure 3.
100
90
80
70
60
50
40
30
20
10
0
020406080
Board Temperture Rise Above Ambient Divided by Package
Power
Figure 3. Effect of Board Temperature Rise on Thermal Behavior
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor13
Thermal Calculation and Measurement
If the board temperature is known, an estimate of the junction temperature in the environment can be made
using the following equation:
TJ = TB +(R
θJB
x PD)
where:
R
= junction-to-board thermal resistance (ºC/W)
θJB
TB = board temperature (ºC)
PD = power dissipation in package
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.
7.4Estimation 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 applic ation [2], or a more accurate and
complex model of the package can be used in the thermal simulation.
7.5Experimental Determination
To determine the junction temperature of the device in the application after prototypes are available, the
thermal characterization parame ter (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 x PD)
where:
Ψ
= thermal characterization parameter
JT
TT = thermocouple temperature on top of package
= power dissipation in package
P
D
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 caused by cooling
effects of the thermocouple wire.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
14Freescale Semiconductor
Layout Practices
7.6References
Semiconductor Equipment and Materials International(415) 964-5111
805 East Middlefield Rd.
Mountain View, CA 94043
MIL-SPEC and EIA/JESD (JEDEC) Specificat ions800-854-7179 or
(Available from Global Engine ering Documents)303-397-7956
JEDEC Spec if ic ation s http://www.jedec.o rg
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.
8Layout Practices
Each VCC pin on the MPC862/857T/857DSL 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 VCC power supply should be bypassed to ground
using at least four 0.1 µF by-pass capacitors located as close as possible to the four sides of the package.
The capacitor leads and associated printed circuit traces connecting to chip VCC and GND should be kept
to less than half an inch per capacitor lead. A four-layer board is recommended, employing two inner
layers as VCC and GND planes.
All output pins on the MPC862/857T/857DSL have fast rise and fall times. Printed circuit (PC) trace
interconnection length should be minimized in order to minimize undershoot and reflections caused by
these fast output switching times. This recommenda tion particularly applies to the address and data busses.
Maximum PC trace lengths of six inches are recommended. Capacitance calculations should consider all
device loads as well as parasitic capacitances due to the PC traces. 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 VCC and GND circuits. Pull up all unused inputs or signals that will be
inputs during reset. Special care should be taken to minimize the noise levels on the PLL supply pins.
9Bus Signal Timing
The maximum bus speed supported by the MPC862/857T/857DSL is 66 MHz. Higher-speed parts must
be operated in half-speed bus mode (for example, an MPC862/857T/857DSL used at 80MHz must be
configured for a 40 MHz bus). Table 6 shows the period ranges for standard part frequencies.
Table 6. Period Range for Standard Part Frequencies
50 MHz66 MHz80 MHz100 MHz
Freq
MinMaxMinMaxMinMaxMinMax
Period20.0030.3015.1530.3025.0030.3020.0030.30
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor15
Bus Signal Timing
Table 7 provides the bus operation timing for the MPC862/857T/857DSL at 33 MHz, 40 Mhz, 50 MHz
and 66 Mhz.
The timing for the MPC862/857T/857DSL bus shown assumes a 50-pF load for maximum delays and a
requested by control bit CST4 in the
corresponding word in the UPM
(MAX = 0.00 X B1 + 6.00)
requested by control bit CST1 in the
corresponding word in the UPM
(MAX = 0.25 x B1 + 6.80)
requested by control bit CST2 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 8.00)
valid - as
valid - as
valid - as
8.40—6.40—4.50—2.70—ns
38.67—31.38—24.50—17.83—ns
1.506.001.506.001.506.001.506.00ns
7.6014.306.3013.005.0011.803.8010.50ns
1.508.001.508.001.508.001.508.00ns
B31c CLKOUT rising edge to CS
requested by control bit CST3 in the
corresponding word in the UPM
(MAX = 0.25 x B1 + 6.30)
B31d CLKOUT falling edge to CS
requested by control bit CST1 in the
corresponding word in the UPM
EBDF = 1 (MAX = 0.375 x B1 + 6.6)
B32 CLKOUT falling edge to BS
requested by control bit BST4 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 6.00)
B32a CLKOUT falling edge to BS
requested by control bit BST1 in the
corresponding word in the UPM,
EBDF = 0 (MAX = 0.25 x B1 + 6.80)
B32b CLKOUT rising edge to BS
requested by control bit BST2 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 8.00)
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
valid- as
valid, as
valid- as
valid - as
valid - as
7.6013.806.3012.505.0011.303.8010.00ns
9.4018.007.6016.0013.30 14.10 11.3012.30ns
1.506.001.506.001.506.001.506.00ns
7.6014.306.3013.005.0011.803.8010.50ns
1.508.001.508.001.508.001.508.00ns
Freescale Semiconductor21
Bus Signal Timing
NumCharacteristic
Table 7. Bus Operation Timings (continued)
33 MHz40 MHz50 MHz66 MHz
Unit
MinMaxMinMaxMinMaxMinMax
B32c CLKOUT rising edge to BS valid - as
requested by control bit BST3 in the
corresponding word in the UPM
(MAX = 0.25 x B1 + 6.80)
B32d CLKOUT falling edge to BS
requested by control bit BST1 in the
corresponding word in the UPM,
EBDF = 1 (MAX = 0.375 x B1 + 6.60)
B33 CLKOUT falling edge to GPL
requested by control bit GxT4 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 6.00)
B33a CLKOUT rising edge to GPL
requested by control bit GxT3 in the
corresponding word in the UPM
(MAX = 0.25 x B1 + 6.80)
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 x B1 - 2.00)
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 x B1 - 2.00)
valid- as
valid - as
Vali d - as
7.6014.306.3013.005.0011.803.8010.50ns
9.4018.007.6016.00 13.3014.10 11.3012.30ns
1.506.001.506.001.506.001.506.00ns
7.6014.306.3013.005.0011.803.8010.50ns
5.60—4.30—3.00—1.80—ns
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 x B1 - 2.00)
B35 A(0:31), BADDR(28:30) to CS
as requested by control bit BST4 in the
corresponding word in the UPM
(MIN = 0.25 x B1 - 2.00)
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 x B1 - 2.00)
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 x B1 - 2.00)
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 x B1 - 2.00)
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
valid -
20.70—16.70—13.00—9.40—ns
5.60—4.30—3.00—1.80—ns
13.20—10.50—8.00—5.60—ns
20.70—16.70—13.00—9.40—ns
5.60—4.30—3.00—1.80—ns
22Freescale Semiconductor
NumCharacteristic
Bus Signal Timing
Table 7. Bus Operation Timings (continued)
33 MHz40 MHz50 MHz66 MHz
Unit
MinMaxMinMaxMinMaxMinMax
B37 UPWAIT valid to CLKOUT falling edge
12
(MIN = 0.00 x B1 + 6.00)
B38 CLKOUT falling edge to UPWAIT valid
12
(MIN = 0.00 x B1 + 1.00)
B39 AS
valid to CLKOUT rising edge
13
6.00—6.00—6.00—6.00—ns
1.00—1.00—1.00—1.00—ns
7.00—7.00—7.00—7.00—ns
(MIN = 0.00 x B1 + 7.00)
B40 A(0:31), TSIZ(0:1), RD/WR
, BURST,
7.00—7.00—7.00—7.00—ns
valid to CLKOUT rising edge
(MIN = 0.00 x B1 + 7.00)
B41 TS
valid to CLKOUT rising edge (setup
7.00—7.00—7.00—7.00—ns
time) (MIN = 0.00 x B1 + 7.00)
B42 CLKOUT rising edge to TS
valid (hold
2.00—2.00—2.00—2.00—ns
time) (MIN = 0.00 x B1 + 2.00)
B43 AS
negation to memory controller
—TBD—TBD—TBD—TBDns
signals negation (MAX = TBD)
1
Phase and frequency jitter performance results are only valid if the input jitter is less than the prescribed value.
2
If the rate of change of the frequency of EXTAL is slow (I.e. it does not jump between the minimum and maximum
values in one cycle) or the frequency of the jitter is fast (I.e., it does not stay at an extreme value for a long time) then
the maximum allowed jitter on EXTAL can be up to 2%.
3
The timings specified in B4 and B5 are based on full strength clock.
4
The timing for BR output is relevant when the MPC862/857T/857DSL is selected to work with external bus arbiter.
The timing for BG
5
For part speeds above 50MHz, use 9.80ns for B11a.
6
The timing required for BR input is relevant when the MPC862/857T/857DSL is selected to work with internal bus
arbiter. The timing for BG
output is relevant when the MPC862/857T/857DSL is selected to work with internal bus arbiter.
input is relevant when the MPC862/857T/857DSL is selected to work with external bus
arbiter.
7
For part speeds above 50MHz, use 2ns for B17.
8
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.
9
For part speeds above 50MHz, use 2ns for B19.
10
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.)
11
The timing B30 refers to CS when ACS = 00 and to WE(0:3) when CSNT = 0.
12
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.
13
The AS signal is considered asynchronous to the CLKOUT. The timing B39 is specified in order to allow the behavior
specified in Figure 22.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor23
Bus Signal Timing
Figure 4 is the control timing diagram.
CLKOUT
Outputs
Outputs
Inputs
Inputs
Legend:
2.0 V
B
2.0 V
0.8 V
A
B
2.0 V
0.8 V
0.8 V
2.0 V
0.8 V
C
2.0 V
0.8 V
0.8 V
A
D
2.0 V
0.8 V
2.0 V
2.0 V
0.8 V
2.0 V
0.8 V
D
C
2.0 V
0.8 V
AMaximum output delay specification.
BMinimum output hold time.
CMinimum input setup time specification.
DMinimum input hold time specification.
Figure 4. Control Timing
Figure 5 provides the timing for the external clock.
CLKOUT
B1
B1
B4
Figure 5. External Clock Timing
B3
B2
B5
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
24Freescale Semiconductor
Figure 6 provides the timing for the synchronous output signals.
CLKOUT
B8
B7B9
Output
Signals
B8a
Output
Signals
B8b
B7b
Output
Signals
Figure 6. Synchronous Output Signals Timing
Bus Signal Timing
B9B7a
Figure 7 provides the timing for the synchronous active pull-up and open-drain output signals.
CLKOUT
B13
B12B11
TS
, BB
B13a
B11aB12a
TA , BI
B14
B15
TEA
Figure 7. Synchronous Active Pull-Up Resistor and Open-Drain Outputs
Signals Timing
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor25
Bus Signal Timing
Figure 8 provides the timing for the synchronous input signals.
CLKOUT
B16
, BI
TA
B16a
TEA, KR,
RETRY
, CR
B16b
BB, BG, BR
Figure 8. Synchronous Input Signals Timing
B17
B17a
B17
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
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
26Freescale 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 controlled by various GPCM
factors.
CLKOUT
TS
A[0:31]
CSx
OE
WE[0:3]
D[0:31],
DP[0:3]
B11B12
B8
B22
B25
B28
B23
B26
B19
B18
Figure 11. External Bus Read Timing (GPCM Controlled—ACS = 00)
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor35
Bus Signal Timing
Table 8 provides interrupt timing for the MPC862/857T/857DSL.
Table 8. Interrupt Timing
NumCharacteristic
I39IRQ
I40IRQ
I41IRQ
I42IRQ
I43IRQ
1
The timings I39 and I40 describe the testing conditions under which the IRQ lines are tested when being
defined as level sensitive. The IRQ
negated with reference to the CLKOUT.
The timings I41, I42, and I43 are specified to allow the correct function of the IRQ
and has no direct relation with the total system interrupt latency that the MPC862/857T/857DSL is able to
support.
x valid to CLKOUT rising edge (set up time)6.00ns
x hold time after CLKOUT2.00ns
x pulse width low3.00ns
x pulse width high3.00ns
x edge-to-edge time4xT
lines are synchronized internally and do not have to be asserted or
1
All Frequencies
MinMax
CLOCKOUT
lines detection circuitry,
Figure 24 provides the interrupt detection timing for the external level-sensitive lines.
CLKOUT
I39
I40
Unit
—
x
IRQ
Figure 24. Interrupt Detection Timing for External Level Sensitive Lines
Figure 25 provides the interrupt detection timing for the external edge-sensitive lines.
CLKOUT
I41I42
x
IRQ
I43
I43
Figure 25. Interrupt Detection Timing for External Edge Sensitive Lines
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
36Freescale Semiconductor
Table 9 shows the PCMCIA timing for the MPC862/857T/857DSL.
Table 9. PCMCIA Timing
33 MHz40 MHz50 MHz66 MHz
NumCharacteristic
MinMaxMinMaxMinMaxMinMax
Bus Signal Timing
Unit
A(0:31), REG
P44
Strobe asserted.
B1 - 2.00)
P45
A(0:31), REG
negation.
1
(MIN = 1.00 x B1 -
2.00)
CLKOUT to REG
P46
0.25 x B1 + 8.00)
CLKOUT to REG
P47
0.25 x B1 + 1.00)
CLKOUT to CE1
P48
(MAX = 0.25 x B1 + 8.00)
CLKOUT to CE1
P49
(MAX = 0.25 x B1 + 8.00)
CLKOUT to PCOE
IOWR
P50
assert time. (MAX = 0.00 x
B1 + 11.00)
CLKOUT to PCOE
IOWR
P51
negate time. (MAX = 0.00 x
B1 + 11.00)
CLKOUT to ALE assert time
P52
(MAX = 0.25 x B1 + 6.30)
valid to PCMCIA
1
(MIN = 0.75 x
valid to ALE
valid (MAX =
Invalid. (MIN =
, CE2 asserted.
, CE2 negated.
, IORD, PCWE,
, IORD, PCWE,
20.70—16.70—13.00—9.40—ns
28.30—23.00—18.00—13.20—ns
7.6015.606.3014.305.0013.003.8011.80ns
8.60—7.30—6.00—4.80—ns
7.6015.606.3014.305.0013.003.8011.80ns
7.6015.606.3014.305.0013.003.8011.80ns
—11.00—11.00—11.00—11.00ns
2.0011.002.0011.002.0011.002.0011.00ns
7.6013.806.3012.505.0011.303.8010.00ns
CLKOUT to ALE negate time
P53
(MAX = 0.25 x B1 + 8.00)
, IOWR negated to D(0:31)
PCWE
P54
P55
1
invalid.
WAITA
(MIN = 0.25 x B1 - 2.00)
and WAITB valid to
CLKOUT rising edge.
1
(MIN =
—15.60—14.30—13.00—11.80ns
5.60—4.30—3.00—1.80—ns
8.00—8.00—8.00—8.00—ns
0.00 x B1 + 8.00)
2.00—2.00—2.00—2.00—ns
CLKOUT rising edge to WAITA
and WAITB
P56
invalid.1 (MIN = 0.00 x
B1 + 2.00)
1
PSST = 1. Otherwise add PSST times cycle time.
PSHT = 0. Otherwise add PSHT times cycle time.
These synchronous timings define when the WAITx
current cycle. The WAITx
PCMCIA Interface in the
assertion will be effective only if it is detected 2 cycles before the PSL timer expiration. See
MPC862 PowerQUICC User s Manual
signals are detected in order to freeze (or relieve) the PCMCIA
.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor37
Bus Signal Timing
Figure 26 provides the PCMCIA access cycle timing for the external bus read.
CLKOUT
TS
P44
A[0:31]
REG
CE1/CE2
PCOE, IORD
ALE
D[0:31]
P46P45
P48P49
P53P52P52
P47
P51P50
Figure 26. PCMCIA Access Cycles Timing External Bus Read
B19B18
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
38Freescale Semiconductor
Figure 27 provides the PCMCIA access cycle timing for the external bus write.
CLKOUT
TS
P44
A[0:31]
Bus Signal Timing
P46P45
REG
P48P49
CE1/CE2
PCOE, IOWR
P53P52P52
ALE
D[0:31]
Figure 27. PCMCIA Access Cycles Timing External Bus Write
Figure 28 provides the PCMCIA W A IT signals detection timing.
P47
P51P50
P54
B19B18
CLKOUT
P55
P56
x
WAI T
Figure 28. PCMCIA WAIT Signals Detection Timing
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor39
Bus Signal Timing
Table 10 shows the PCMCIA port timing for the MPC862/857T/857DSL.
Table 10. PCMCIA Port Timing
33 MHz40 MHz50 MHz66 MHz
NumCharacteristic
MinMaxMinMaxMinMaxMinMax
Unit
CLKOUT to OPx Valid (MAX = 0.00 x
P57
B1 + 19.00)
HRESET
P58
(MIN = 0.75 x B1 + 3.00)
IP_Xx valid to CLKOUT rising edge
P59
(MIN = 0.00 x B1 + 5.00)
CLKOUT rising edge to IP_Xx invalid
P60
(MIN = 0.00 x B1 + 1.00)
1
OP2 and OP3 only.
negated to OPx drive
1
—19.00—19.00—19.00—19.00ns
25.70—21.70—18.00—14.40—ns
5.00—5.00—5.00—5.00—ns
1.00—1.00—1.00—1.00—ns
Figure 29 provides the PCMCIA output port timing for the MPC862/857T/857DSL.
CLKOUT
P57
Output
Signals
HRESET
P58
OP2, OP3
Figure 29. PCMCIA Output Port Timing
Figure 30 provides the PCMCIA output port timing for the MPC862/857T/857DSL.
CLKOUT
P59
P60
Input
Signals
Figure 30. PCMCIA Input Port Timing
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
40Freescale Semiconductor
Table 11 s hows the debug port timing for the MPC862/857T/857DSL.
Table 11. Debug Port Timing
All Frequencies
NumCharacteristic
MinMax
Bus Signal Timing
Unit
D61DSCK cycle time3 x T
D62DSCK clock pulse width1.25 x T
D63DSCK rise and fall times0.003.00ns
D64DSDI input data setup time8.00ns
D65DSDI data hold time5.00ns
D66DSCK low to DSDO data valid0.0015.00ns
D67DSCK low to DSDO invalid0.002.00ns
CLOCKOUT
Figure 31 provides the input timing for the debug port clock.
DSCK
D61
D61
D63
D62
Figure 31. Debug Port Clock Input Timing
Figure 32 provides the timing for the debug port.
CLOCKOUT
D62
-
-
D63
DSCK
D64
D65
DSDI
D66
D67
DSDO
Figure 32. Debug Port Timings
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor41
Bus Signal Timing
Table 12 shows the reset timing for the MPC862/857T/857DSL.
Table 12. Reset Timing
33 MHz40 MHz50 MHz66 MHz
NumCharacteristic
MinMaxMinMaxMinMaxMinMax
Unit
CLKOUT to HRESET
R69
(MAX = 0.00 x B1 + 20.00)
CLKOUT to SRESET
R70
(MAX = 0.00 x B1 + 20.00)
RSTCONF
R71
(MIN = 17.00 x B1)
R72——————————
Configuration data to HRESET rising
R73
edge set up time
(MIN = 15.00 x B1 + 50.00)
Configuration data to RSTCONF
edge set up time
R74
(MIN = 0.00 x B1 + 350.00)
Configuration data hold time after
R75
RSTCONF
(MIN = 0.00 x B1 + 0.00)
Configuration data hold time after
R76
HRESET
(MIN = 0.00 x B1 + 0.00)
HRESET
R77
data out drive (MAX = 0.00 x B1 + 25.00)
pulse width
negation
negation
and RSTCONF asserted to
high impedance
high impedance
rising
—20.00—20.00—20.00—20.00ns
—20.00—20.00—20.00—20.00ns
515.20—425.00—340.00—257.60—ns
504.50—425.00—350.00—277.30—ns
350.00—350.00—350.00—350.00—ns
0.00—0.00—0.00—0.00—ns
0.00—0.00—0.00—0.00—ns
—25.00—25.00—25.00—25.00ns
RSTCONF
R78
impedance. (MAX = 0.00 x B1 + 25.00)
CLKOUT of last rising edge before chip
R79
three-states HRESET
impedance. (MAX = 0.00 x B1 + 25.00)
R80DSDI, DSCK set up (MIN = 3.00 x B1)90.90—75.00—60.00—45.50—ns
DSDI, DSCK hold time
R81
(MIN = 0.00 x B1 + 0.00)
SRESET
edge for DSDI and DSCK sample
R82
(MIN = 8.00 x B1)
negated to data out high
to data out high
negated to CLKOUT rising
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
—25.00—25.00—25.00—25.00ns
—25.00—25.00—25.00—25.00ns
0.00—0.00—0.00—0.00—ns
242.40—200.00—160.00—121.20—ns
42Freescale Semiconductor
Figure 33 shows the reset timing for the data bus configuration.
HRESET
R71
R76
RSTCONF
R73
R74
D[0:31] (IN)
R75
Figure 33. Reset Timing—Configuration from Data Bus
Figure 34 provides the reset timing for the data bus weak drive during configuration.
CLKOUT
Bus Signal Timing
HRESET
RSTCONF
D[0:31] (OUT)
(Weak)
R69
R79
R77R78
Figure 34. Reset Timing—Data Bus Weak Drive during Configuration
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor43
IEEE 1149.1 Electrical Specifications
Figure 35 provides the reset timing for the debug port configuration.
CLKOUT
R70
R82
SRESET
R80R80
R81
DSCK, DSDI
R81
Figure 35. Reset Timing—Debug Port Configuration
10IEEE 1149.1 Electrical Specifications
Table 13 provides the JTAG timings for the MPC862/857T/857DSL shown in Figure 36 though Figure 39.
Table 13. JTAG Timing
All Frequencies
NumCharacteristic
MinMax
J82TCK cycle time100.00—ns
J83TCK clock pulse width measured at 1.5 V40.00—ns
J84TCK rise and fall times0.0010.00ns
J85TMS, TDI data setup time5.00—ns
J86TMS, TDI data hold time25.00—ns
J87TCK low to TDO data valid —27.00ns
J88TCK low to TDO data invalid 0.00—ns
J89TCK low to TDO high impedance —20.00ns
J90TRST
J91TRST
J92TCK falling edge to output valid—50.00ns
J93TCK falling edge to output valid out of high impedance—50.00ns
J94TCK falling edge to output high impedance—50.00ns
J95Boundary scan input valid to TCK rising edge50.00—ns
assert time100.00—ns
setup time to TCK low40.00—ns
Unit
J96TCK rising edge to boundary scan input invalid50.00—ns
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
44Freescale Semiconductor
TCK
TCK
TMS, TDI
TDO
IEEE 1149.1 Electrical Specifications
J82J83
J82J83
J84J84
Figure 36. JTAG Test Clock Input Timing
J85
J86
J87
J88J89
TCK
TRST
TCK
Output
Signals
Output
Signals
Figure 37. JTAG Test Access Port Timing Diagram
J91
J90
Figure 38. JTAG TRST
J92J94
J93
Timing Diagram
J95J96
Output
Signals
Figure 39. Boundary Scan (JTAG) Timing Diagram
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor45
CPM Electrical Characteristics
11CPM Electrical Characteristics
This section provides the AC and DC electrical specifications for the communications processor module
(CPM) of the MPC862/857T/857DSL.
11.1PIP/PIO AC Electrical Specifications
Table 14 provides the PIP/PIO AC timings as shown in Figure 40 though Figure 44.
Table 14. PIP/PIO Timing
All Frequencies
NumCharacteristic
MinMax
21Data-in setup time to STBI low0—ns
22Data-in hold time to STBI high2.5 – t3
23STBI pulse width1.5—clk
24STBO pulse width1 clk – 5 ns—ns
25Data-out setup time to STBO low2—clk
1
—clk
Unit
26Data-out hold time from STBO high5—clk
27STBI low to STBO low (Rx interlock)—2clk
28STBI low to STBO high (Tx interlock)2—clk
29Data-in setup time to clock high15—ns
30Data-in hold time from clock high7.5—ns
31Clock low to data-out valid (CPU writes data, control, or direction)—25ns
1
t3 = Specification 23
DATA-IN
21
23
STBI
27
24
STBO
22
Figure 40. PIP Rx (Interlock Mode) Timing Diagram
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
46Freescale Semiconductor
DATA-OUT
CPM Electrical Characteristics
STBO
(Output)
STBI
(Input)
DATA-IN
STBI
(Input)
25
24
28
23
26
Figure 41. PIP Tx (Interlock Mode) Timing Diagram
2221
23
24
STBO
(Output)
DATA-OUT
STBO
(Output)
STBI
(Input)
Figure 42. PIP Rx (Pulse Mode) Timing Diagram
2625
24
23
Figure 43. PIP TX (Pulse Mode) Timing Diagram
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Timing Diagram
62Freescale Semiconductor
CPM Electrical Characteristics
11.9SMC Transparent AC Electrical Specifications
Table 23 provides the SMC transparent timings as shown in Figure 65.
Table 23. SMC Transparent Timing
All Frequencies
NumCharacteristic
MinMax
150SMCLK clock period
151SMCLK width low50—ns
151ASMCLK width high50—ns
152SMCLK rise/fall time —15ns
153SMTXD active delay (from SMCLK falling edge)1050ns
154SMRXD/SMSYNC setup time20—ns
155RXD1/SMSYNC hold time5—ns
1
SyncCLK must be at least twice as fast as SMCLK.
1
100—ns
Unit
SMCLK
SMTXD
(Output)
SMSYNC
SMRXD
(Input)
NOTE:
152
This delay is equal to an integer number of character-length clocks.1.
152151
NOTE 1
154153
155
154
155
151A
150
Figure 65. SMC Transparent Timing Diagram
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor63
CPM Electrical Characteristics
11.10 SPI Master AC Electrical Specifications
Table 24 provides the SPI master timings as shown in Figure 66 though Figure 67.
Table 24. SPI Master Timing
All Frequencies
NumCharacteristic
MinMax
Unit
160MASTER cycle time41024t
161MASTER clock (SCK) high or low time2512t
162MASTER data setup time (inputs)15—ns
163Master data hold time (inputs)0—ns
164Master data valid (after SCK edge)—10ns
165Master data hold time (outputs)0—ns
166Rise time output—15ns
167Fall time output—15ns
SPICLK
(CI=0)
(Output)
166167161
161160
SPICLK
(CI=1)
(Output)
163
162
166
167
cyc
cyc
SPIMISO
(Input)
SPIMOSI
(Output)
msbDatalsbmsb
165164
167166
msblsbmsb
Data
Figure 66. SPI Master (CP = 0) Timing Diagram
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
64Freescale Semiconductor
SPICLK
(CI=0)
(Output)
SPICLK
(CI=1)
(Output)
161160
163
162
CPM Electrical Characteristics
166167161
167
166
SPIMISO
(Input)
SPIMOSI
(Output)
msbDatalsbmsb
165164
167166
msblsbmsb
Data
Figure 67. SPI Master (CP = 1) Timing Diagram
11.11 SPI Slave AC Electrical Specifications
Table 25 provides the SPI slave timings as shown in Figure 68 though Figure 69.
Table 25. SPI Slave Timing
All Frequencies
NumCharacteristic
MinMax
170Slave cycle time2—t
171Slave enable lead time15—ns
172Slave enable lag time15—ns
173Slave clock (SPICLK) high or low time1—t
174Slave sequential transfer delay (does not require deselect)1—t
175Slave data setup time (inputs)20—ns
Unit
cyc
cyc
cyc
176Slave data hold time (inputs)20—ns
177Slave access time—50ns
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor65
CPM Electrical Characteristics
SPISEL
(Input)
SPICLK
(CI=0)
(Input)
SPICLK
(CI=1)
(Input)
181182173
173170
177182
181
180
171172
174
178
SPIMISO
(Output)
SPIMOSI
(Input)
SPISEL
(Input)
SPICLK
(CI=0)
(Input)
SPICLK
(CI=1)
(Input)
DatamsblsbmsbUndef
175179
176182
msblsbmsb
Data
181
Figure 68. SPI Slave (CP = 0) Timing Diagram
172
171170
173
173
177182
181
180
181182
174
178
SPIMISO
(Output)
SPIMOSI
(Input)
msb
175179
176182
msblsb
Data
181
Data
lsbUndef
msb
msb
Figure 69. SPI Slave (CP = 1) Timing Diagram
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
66Freescale Semiconductor
11.12 I2C AC Electrical Specifications
Table 26 provides the I2C (SCL < 100 KHz) timings.
Table 2 6 . I2C Timing (SCL < 100 KHZ)
CPM Electrical Characteristics
NumCharacteristic
200SCL clock frequency (slave)0100kHz
200SCL clock frequency (master)
202Bus free time between transmissions 4.7—μs
203Low period of SCL4.7—μs
204High period of SCL4.0—μs
205Start condition setup time4.7—μs
206Start condition hold time4.0—μs
207Data hold time0—μs
208Data setup time250—ns
209SDL/SCL rise time —1μs
210SDL/SCL fall time —300ns
211Stop condition setup time4.7—μs
1
SCL frequency is given by SCL = BRGCLK_frequency / ((BRG register + 3) * pre_scaler * 2).
The ratio SyncClk/(BRGCLK/pre_scaler) must be greater or equal to 4/1.
1
All Frequencies
MinMax
1.5100kHz
Table 27 provides the I2C (SCL > 100 kHz) timings.
Table 27. I2C Timing (SCL > 100 kHZ)
Unit
NumCharacteristicExpression
200SCL clock frequency (slave)fSCL0BRGCLK/48Hz
200SCL clock frequency (master)
202Bus free time between transmissions —1/(2.2 * fSCL)—s
203Low period of SCL—1/(2.2 * fSCL)—s
204High period of SCL—1/(2.2 * fSCL)—s
205Start condition setup time—1/(2.2 * fSCL)—s
206Start condition hold time—1/(2.2 * fSCL)—s
207Data hold time—0—s
208Data setup time—1/(40 * fSCL)—s
209SDL/SCL rise time ——1/(10 * fSCL)s
210SDL/SCL fall time ——1/(33 * fSCL)s
211Stop condition setup time—1/2(2.2 * fSCL)—s
1
SCL frequency is given by SCL = BrgClk_frequency / ((BRG register + 3) * pre_scaler * 2).
The ratio SyncClk/(Brg_Clk/pre_scaler) must be greater or equal to 4/1.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
1
fSCLBRGCLK/16512BRGCLK/48Hz
All Frequencies
MinMax
Unit
Freescale Semiconductor67
UTOPIA AC Electrical Specifications
Figure 70 shows the I2C bus timing.
SDA
202
205
SCL
206209211210
203
207
204
208
Figure 70. I2C Bus Timing Diagram
12UTOPIA AC Electrical Specifications
Table 28 shows the AC electrical specifications for the UTOPIA interface.
Table 28. UTOPIA AC Electrical Specifications
NumSignal CharacteristicDirectionMinMaxUnit
U1UtpClk rise/fall time (Internal clock option)Output4 nsns
Duty cycle5050%
Frequency33MHz
U1aUtpClk rise/fall time (external clock option)Input4nsns
Duty cycle4060%
Frequency33MHz
U2RxEnb
U3UTPB, SOC, Rxclav and Txclav setup timeInput4 nsns
U4UTPB, SOC, Rxclav and Txclav hold timeInput1 nsns
U5UTPB, SOC active delay (and PHREQ and PHSEL active
and TxEnb active delayOutput2 ns16 nsns
Output2 ns16 nsns
delay in MPHY mode)
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
68Freescale Semiconductor
Figure 71 shows signal timings during UTOPIA receive operations.
FEC Electrical Characteristics
U1
UtpClk
U5
PHREQn
U3U4
3
RxClav
RxEnb
UTPB
SOC
HighZ at MPHY
U2
2
Figure 71. UTOPIA Receive Timing
Figure 72 shows signal timings during UTOPIA transmit operations.
U1
1
UtpClk
U5
5
U1
4
HighZ at MPHY
U3
U1
U4
3
4
PHSELn
U3U4
TxClav
TxEnb
UTPB
SOC
HighZ at MPHY
U2
2
U5
5
3
4
HighZ at MPHY
Figure 72. UTOPIA Transmit Timing
13FEC 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). Furthermore, MII signals use TTL signal levels compatible with devices operating at eithe r
5.0 or 3.3 V.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor69
FEC Electrical Characteristics
13.1MII 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 29 provides information on the MII receive signal timing.
Table 29. MII Receive Signal Timing
NumCharacteristicMinMaxUnit
M1MII_RXD[3:0], MII_RX_DV, MII_RX_ER to MII_RX_CLK setup5—ns
M2MII_RX_CLK to MII_RXD[3:0], MII_RX_DV, MII_RX_ER hold5—ns
M3MII_RX_CLK pulse width high35%65%MII_RX_CLK period
M4MII_RX_CLK pulse width low35%65%MII_RX_CLK period
Figure 73 shows MII receive signal timing.
M3
MII_RX_CLK (input)
M4
MII_RXD[3:0] (inputs)
MII_RX_DV
MII_RX_ER
M1
Figure 73. MII Receive Signal Timing Diagram
M2
13.2MII 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 fr equency of 25 MHz +1%. There is
no minimum frequency requirement. In addition, the processor clock frequency must exceed the
MII_TX_CLK frequency - 1%.
Table 30 provides information on the MII transmit signal timing.
Table 30. MII Transmit Signal Timing
NumCharacteristicMinMaxUnit
M5MII_TX_CLK to MII_TXD[3:0], MII_TX_EN, MII_TX_ER invalid5—ns
M6MII_TX_CLK to MII_TXD[3:0], MII_TX_EN, MII_TX_ER valid—25
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
70Freescale Semiconductor
FEC Electrical Characteristics
Table 30. MII Transmit Signal Timing (continued)
NumCharacteristicMinMaxUnit
M7MII_TX_CLK pulse width high35%65%MII_TX_CLK period
M8MII_TX_CLK pulse width low35%65%MII_TX_CLK period
Figure 74 shows the MII trans mit signal timing diagram.
M7
MII_TX_CLK (input)
M5
M8
MII_TXD[3:0] (outputs)
MII_TX_EN
MII_TX_ER
M6
Figure 74. MII Transmit Signal Timing Diagram
13.3MII Async Inputs Signal Timing (MII_CRS, MII_COL)
Table 31 provides information on the MII async inputs signal timing.
Table 31. MII Async Inputs Signal Timing
NumCharacteristicMinMaxUnit
M9MII_CRS, MII_COL minimum pulse width1.5—MII_TX_CLK period
Figure 75 shows the MII asynchronous inputs signal timing diagram.
MII_CRS, MII_COL
M9
Figure 75. MII Async Inputs Timing Diagram
13.4MII Serial Management Channel Timing (MII_MDIO, MII_MDC)
Table 32 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.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor71
Mechanical Data and Ordering Information
Table 32. MII Serial Management Channel Timing
NumCharacteristicMinMaxUnit
M10MII_MDC falling edge to MII_MDIO output invalid (minimum
propagation delay)
M11MII_MDC falling edge to MII_MDIO output valid (max prop delay)—25ns
M12MII_MDIO (input) to MII_MDC rising edge setup10—ns
M13MII_MDIO (input) to MII_MDC rising edge hold0—ns
M14MII_MDC pulse width high40%60%MII_MDC period
M15MII_MDC pulse width low40%60%MII_MDC period
0—ns
Figure 76 shows the MII serial management channel timing diagram.
M14
MM15
MII_MDC (output)
M10
MII_MDIO (output)
M11
MII_MDIO (input)
M12
M13
Figure 76. MII Serial Management Channel Timing Diagram
14Mechanical Data and Ordering Information
Table 33 provides information on the MPC862/857T/857DSL derivative devices.
Table 33. MPC862/857T/857DSL Derivatives
Number
Device
MPC862TFour 10/100 MbpsYesYes4 Kbytes4 Kbytes
MPC862PFour 10/100 MbpsYesYes16 Kbytes8 Kbytes
of
SCCs
1
Ethernet
Support
Multi-Channel
HDLC Support
ATM Support
InstructionData
Cache Size
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
For more information on the pr inted circuit board layout of the PBGA package, including thermal via
design and suggested pad layout, please refer to Plastic Ball Grid Array Applic ation Note (order number:
AN1231/D) available from your local Freescale sales office. Figure 78 shows the mechanical dimensions
of the PBGA package.
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
84Freescale Semiconductor
Mechanical Data and Ordering Information
D
D2
TOP VIEW
D1
W
V
U
T
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
12345678910111213141516171819
BOTTOM VIEW
Figure 78. Mechanical Dimensions and Bottom Surface Nomenclature
4X
18X
E1
357X b
0.3
0.15MC
0.2
A
EE2
B
e
NOTES:
1. Dimensions and tolerancing per ASME Y14.5M,
1994.
2. Dimensions in millimeters.
3. Dimension b is the maximum solder bal
measured parallel to datum C.
M
C
AB
of the PBGA Package
0.2 C
0.25 C
0.35 C
A2
A3
A1
A
SIDE VIEW
MILLIMETERS
DIMMINMAX
A---2.05
A1
0.500.70
A20.951.35
A30.700.90
b0.600.90
D25.00 BSC
D122.86 BSC
D222.4022.60
e1.27 BSC
E25.00 BSC
E122.86 BSC
E222.4022.60
C
l diameter
Case No. 1103-01
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor85
Document Revision History
15Document Revision History
Table 36 lists significant changes between revisions of this document.
Table 36. Document Revision History
Rev. No.DateSubstantive Changes
02001Initial revision
0.19/2001Change extended temperature from 95 to 105
0.211/2001Revised for new template, changed Ta bl e 7 B23 max value @ 66 MHz from 2 ns to 8 ns.
0.34/2002 • Timing modified and equations added, for Rev. A and B devices.
• Modified power numbers and temperature ranges. Added ESAR UTOPIA timing.
1.09/2002 • Specification changed to include the MPC857T and MPC857DSL.
• Changed maximum operating frequency from 80 MHz to 100 MHz.
• Removed MPC862DP, DT, and SR derivatives and part numbers.
• Corrected power dissipation numbers.
• Changed UTOPIA maximum frequency from 50 MHz to 33 MHz.
• Changed part number ordering information to Rev. B devices only.
• To maximum ratings for temperature, added frequency ranges.
1.15/2003Changed SPI Master Timing Specs. 162 and 164
1.28/2003 • Changed B28a through B28d and B29b to show that TRLX can be 0 or 1.
• Non-technical reformatting
2.011/2004 • Added a table footnote to Tabl e 5 DC Electrical Specifications about meeting the VIL Max
of the I2C Standard.
• Updated document template.
3.02/2006 • Changed Tj from 95C to 105C in table 34
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
86Freescale Semiconductor
THIS PAGE INTENTIONALLY LEFT BLANK
Document Revision History
MPC862/857T/857DSL PowerQUICC™ Family Hardware Specifications, Rev. 3
Freescale Semiconductor87
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