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| SH7708 Datasheet, PDF (489/633 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
A12 or A10
A15âA0
Row address
tAD tAD tAD
tAD tAD
Row
address
Read command
tAD tAD
tAD
Row
address
tCSD1
Column address (1â4)
CSn
tRWD
RD/WR
tRASD2 tRASD2
tAD
tCSD1
tRWD
RAS
tCASD2
tCASD2
CAS
tDQMD
tDQMD
DQMxx
D31âD0
BS
tRDS2 tRDH2
tBSD
tRDS2 tRDH2
tBSD
CKE
(High)
Figure 16.37 Synchronous DRAM Read Bus Cycle (Burst Read (Single Read à 4), RCD = 1,
CAS Latency = 3, TPC = 0)
471
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