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| SH7708 Datasheet, PDF (540/625 Pages) Renesas Technology Corp – SuperH™ RISC engine | |||
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Tr Trw Tc1 Tc2 Tc3 Tc4/Td1 Td2 Td3 Td4 (Tpc)
CKIO
tAD
A25âA16
, ,,,, A12orA10
,,,, ,,,,,,, A15âA0
Row address
tAD tAD tAD
tAD tAD
Row
address
Read command
tAD tAD
tAD
Row
address
tCSD1
Column address (1â4)
tAD
tCSD1
CSn
tRWD
tRWD
RD/WR
tRASD2 tRASD2
RAS
tCASD2
tCASD2
CAS
tDQMD
tDQMD
DQMxx
D31âD0
BS
tRDS2 tRDH2
tBSD
tRDS2 tRDH2
tBSD
CKE
(High)
Figure 17.37 Synchronous DRAM Read Bus Cycle (Burst Read (Single Read à 4),
RCD = 1, CAS Latency = 3, TPC = 0)
526
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