PPMC8240 PPMC8245
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PPMC8240 PPMC8245
This schematic provided reference purposes only. information subject change without notice. warranty, expressed applied, made accuracy information contained herein. Contact Motorola Sale/FAEs obtain latest information this product. You're really paying attention, you, could write anything here you'd never notice.
*Digital
from Motorola
Schematic Notes
Unless otherwise specified: resistors SMD0603, ohms, 0.08W, +/-5% capacitors SMD0603, microfarads (uF), +/-20%. inductances microhenries (uH). ferrites Z=50 ohms MHz. fuses self-resetting polyswitch (PTC) devices. Board impedance 50-60 ohms. Integrated circuits have default connections power ground unless explicitly shown otherwise. Global power connections are: VCC_2.5V VCC_3.3V VCORE VCC_5V Part numbers used reference only; compatible parts used; refer bill materials. Motorola Motorola logo registered trademarks Motorola. PowerPC trademark IBM. Other trademarks respective property their respective copyright holders. I've good news! That like going come back style. rights reserved. sheet-to-sheet cross reference format Sheet VertZoneLetter HorizZoneNumber Components surrounded dashed/crossed-out installed default; they test manufacturing purposes only:
Page
Contents Cover Page General Information Block Diagram Routing Layout Information Power Supply System Configuration MPC8240 System Interface; MPC8240 Memory; SODIMM Socket MPC8240 Interface; Power Dual Flash ROMs UART; Standalone Support Miscellany; LEDs; Mode Connectors
buses follow big-endian numbering order (bit most-significant bit), except where industry standards apply (i.e. PCI). Little-endian numbering noted source component.
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DATE 98APR22 98OCT04 99OCT20 00FEB22
CHANGES
Original Chip pinout changes; tweak. MPC8240 Support; VITA PPMC changes; More Flash; I2C; Delete debug headers Changes only.
GARY MILLIORN
UART Power Supply
5V->2.5V Switcher
<05> <11>
64-bit Local
Configuration
Modes Board Modes
<06>
Boot Flash Auxillary
<10>
Motorola MPC8240 200-266
<07-09>
Processor
SDRAM
SODIMM 16-64 MByte
<08>
Monitors Modes
LEDs Mot/VITA Mode
<12>
32-bit 33/66
Standalone Support
Clock: Reset
<11>
Connector
PPMC Extensions
<13>
Layout/Routing Instructions
split power plane connect VCC_2.5 from power supply core. Place low-ESR capacitors near CPU. Place pulldown resistors order shown. split power plane very heavy traces power path: MOSFET Inductor Low-Ohm Res. VCC_2.5 Plane Keep trace from low-ESR capacitors within high-side MOSFET (Q2). Keep MOSFET gate drive lines Keep VCCA/VCCP attachment within input filter location. Keep VCC_2.5 power flowing point-to-point through MOSFETs, inductor, resistor output filter capacitors. short traces throughout. Place slide switches vertical orientation swap config pins.
special restrictions Place series termination resistors very near source, Route terminated traces using equal trace lengths towards SDRAM array. Route SDRAM_SYNC_OUT SDRAM_SYNC_IN path equal longest clock trace. Route control, address data traces equal lengths. Place filters bottom beneath MPC8240 short heavy traces filter power. Surround MPC8240 with bypass caps shown provide additional ground-return paths; ground-attach vias. Place bulk capacitance near IVDD +3.3V ground planes. Place SODIMM socket within 3.5cm MPC6xx (center-to-center). special instructions. Place LEDs they visible legends nearby. Maximum trace length signals MPC8240 1.5" specification.
Reset
Serial Port SODIMM Socket
OVDD
LEDs
STAT
FLASH Am29DL323
GARY MILLIORN
VCC_2.5 OUTPUT
Nominal voltage; actual output programmed from 1.8V 3.6V.
VCC_2.5 OUTPUT
VCORE 2.05V 2.00V 1.95V 1.90V 1.85V 1.80V 1.75V 1.70V 1.65V 1.60V 1.55V 1.50V 1.45V 1.40V 1.35V 1.30V 3.5V 3.4V 3.3V 3.2V 3.1V 3.0V 2.9V 2.8V 2.7V 2.6V 2.5V 2.4V 2.3V 2.2V 2.1V 0.00V
BULK CAPACITANCE
Distribute around board.
VOLTAGE SEQUENCING
Restricts power supplies specification limits. needed ramp
MPC824X
SYSTEM SPEED SETTINGS
Clock Memory Clock Processor
Bypass
Bypass
Bypass
DEBUG ENABLE
Install enable debug mode.
HOLD TIME
Hold
WIDTH
Install 32-bit mode.
DRIVE STRENGTH
Memory
MEMORY DRIVE STRENGTH
LOCATION
LOCATION
Local
ADDRESS "A": PREP "B": CHRP
ADDRESS SELECT
PPMC TYPE
-DATA SIZE Motorola PPMC VITA PPMC
AGENT MODE
AGENT MODE
Wait initialization (Peripheral Mode) Free Agent Mode
PROGRAM MODE Enable local alias. Normal mode.
PROGRAM MODE
SELECT
SELECT Select alternate
-P66
Select normal
Enable operation only.
ENABLE
SYSTEM RESET
-DEFINITION reset target system. COPonly resets local CPU/MPC107.
Connector
Processor debug access port. NOTE: Connector should routed look appears below.
BOARD
CLOCK TRACE ROUTING
Route clock traces from MPC8240 series resistors equal trace lengths. Route from series resistors destination equal lengths plus additional trace length needed compensate high speeds high loads. Refer AN1722/D details.
Clamp Voltage
3.3V depending upon selection (see page 15).
Clock Trace
Must equal exactly 2.5" from connector MPC824X pin, specifications.
SECTOR PROTECT/UNPROTECT Apply activate override boot sector protection. Resistor need removed.
STAND ALONE CLOCK
Install oscillator socket standalone operation.
STAND ALONE RESET
Install jumper enable on-board reset switch.
V(I/O) SELECTION
Select 3.3V V(I/O) option. ONLY!
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