DS07-16303-3E Datasheet, PDF (11/97 Pages) Fujitsu Component Limited. – 32-bit RISC Microcontroller CMOS FR30 Series

MB91121
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
corresponds to
“0” area
WEH : WE which A0
corresponds to
“1” area
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