Figure 22.36 (B) Synchronous Dram Bus Cycle: Synchronous Dram Mode Register Setting (Set) - Hitachi SH7750 Hardware Manual

Sh7750 series superh risc engine
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TRp1
CKIO
t
AD
BANK
Precharge-sel
Address
t
RWD
RD/
t
RASD
t
CASD2
t
DQMD
DQMn
t
WDD
D63–D0
(write)
CKE
t
DACD
DACKn
Notes: IO: DACK device
SA: Single address DMA transfer
DA: Dual address DMA transfer
DACK set to active-high
Figure 22.36 (b) Synchronous DRAM Bus Cycle: Synchronous DRAM Mode Register
TRp2
TRp3
TRp4
t
CASD2
Setting (SET)
TMw
TMw2
TMw3
t
AD
t
t
CSD
CSD
t
RWD
t
RASD
t
CASD2
Rev. 6.0, 07/02, page 899 of 986
TMw4
TMw5
t
AD
t
CSD
t
RWD
t
RASD
t
CASD2
t
DQMD
t
WDD
t
BSD
t
DACD

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