MB91101 Просмотр технического описания (PDF) - Fujitsu

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MB91101

32-bit RISC Microcontroller

Fujitsu 

MB91101/MB91101A

s DRAM CONTROL PIN

Pin name

Data bus 16-bit mode

2CAS/1WR mode

1CAS/2WR mode

RAS0

Area 4 RAS

Area 4 RAS

RAS1

Area 5 RAS

Area 5 RAS

CS0L

Area 4 CASL

Area 4 CAS

CS0H

Area 4 CASH

Area 4 WEL

CS1L

Area 5 CASL

Area 5 CAS

CS1H

Area 5 CASH

Area 5 WEL

DW0

Area 4 WE

Area 4 WEH

DW1

Area 5 WE

Area 5 WEH

Data bus 8-bit mode

—

Remarks

Area 4 RAS

Area 5 RAS

Area 4 CAS

Area 4 CAS

Area 5 CAS

Area 5 CAS

Area 4 WE

Area 5 WE

Correspondence of “L”,

“H” to lower address 1

bit (A0) in data bus 16-

bit mode

“L”: “0”

“H”: “1”

CASL:CAS which A0

corresponds to “0” area

CASH:CAS which A0

corresponds to “1” area

WEL: WE which A0 cor-

responds to “0” area

WEH:WE which A0 cor-

responds to “1” area

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