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| SH7708 Datasheet, PDF (552/633 Pages) Renesas Technology Corp – SuperH™ RISC engine | |||
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Tr
Tc1
Tc2
Tc3
Tc4
(Trwl)
CKIO
tAD
tAD
A25âA16
A12 or A10
A15âA0
Row address
tAD
tAD
tAD
tAD
Row
address
Write command
tAD
tAD
Write A
command
tAD
Row
address
tCSD1
Column address (1â4)
tCSD1
(Tpc)
CSn
tRWD
tRWD
RD/WR
tRASD2
tRASD2
tRWD
RAS
tCASD2
,,,, CAS
DQMxx
tDQMD
tWDD2
tWDD2
D31âD0
tBSD
BS
tCASD2
tDQMD
tWDH2
tBSD
(Tpc)
CKE
(High)
Figure 17.40 Synchronous DRAM Write Bus Cycle (Burst Mode (Single Write à 4),
RCD = 0, TPC = 1, TRWL = 0)
534
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