MPC821 datasheet(21/242 Pages) NXP

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OPERATING INSTRUCTIONS

MPC8XXFADS Design Specification—Rev 0.1

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Warning

Due to availability problems with few of the sup-

ported memory components, the below initializa-

tions were not tested with all parts. Therefore, the

below initializations are liable to CHANGE,

throughout the testing period.

TABLE 3-3. Memory Controller Initializations For 50Mhz

Device Type

Init Value [hex]

Description

BR0

All

Flash

SIMMs

supported.

02200001

Base at 2200000, 32 bit port size, no parity, GPCM

OR0

MCM29F020-90

FFE00D34

2MByte block size, all types access, CS early negate,

6 w.s., Timing relax

MCM29F040-90

SM732A1000A-9

FFC00D34

4MByte block size, all types access, CS early negate,

6 w.s., Timing relax

MCM29F080-90

SM732A2000-9

FF800D34

8MByte block size, all types access, CS early negate,

6 w.s., Timing relax

MCM29F020-12

FFE00D44

2MByte block size, all types access, CS early negate,

8 w.s., Timing relax

MCM29F040-12

SM732A1000A-12

FFC00D44

4MByte block size, all types access, CS early negate,

8 w.s., Timing relax

MCM29F080-12

SM732A2000-12

FF800D44

8MByte block size, all types access, CS early negate,

8 w.s., Timing relax

BR1

BCSR

02100001

Base at 2100000, 32 bit port size, no parity, GPCM

OR1

FFFF8110

32 KByte block size, all types access, CS early

negate, 1 w.s.

BR2

All

Dram

SIMMs

Supported

00000081

Base at 0, 32 bit port size, no parity, UPMA

OR2

MCM36100/200-60/70

FFC00800

4MByte block size, all types access, initial address

multiplexing according to AMA.

MCM36400/800-60/70

MT8/16D432/832X-6/7

FF000800

16MByte block size, all types access, initial address

multiplexing according to AMA.

BR3

MCM36200-60/70

00400081

Base at 400000, 32 bit port size, no parity, UPMA

MCM36800-60/70

MT16D832X-6/7

01000081

Base at 1000000, 32 bit port size, no parity, UPMA

OR3

MCM36200-60/70

FFC00800

4MByte block size, all types access, initial address

multiplexing according to AMA

MCM36800-60/70

MT16D832X-6/7

FF000800

16MByte block size, all types access, initial address

multiplexing according to AMA.

BR4

MB811171622A-100

030000C1

Base at 3000000, on UPM B

OR4

FFC00A00

4 MByte block size, all types access, initial address

multiplexing according to AMB.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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