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| SH7708 Datasheet, PDF (477/633 Pages) Renesas Technology Corp – SuperH™ RISC engine | |||
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Tr
Trw
Trw
Tc1
Tcw
Tc2
(Tpc) (Tpc)
CKIO
tAD
A25 to A16
Row address
tAD tAS
A15 to A0
tRWD
RD/WR
Row address
tAH
tRASD1
tAD
tAD tAS
Column address
tRWD
tAH
tRASD1 tRWH
RAS
tCASD1
tAH
tCASD1 tRWH
CASxx
D31âD0
(read)
D31âD0
(write)
tWDS
tRDS1
tRDH1
tWDD2
tBSD
tBSD
tWDH3
tWDH1
BS
tCSD1
tCSD1
CS2 or CS3
Figure 16.24 DRAM Bus Cycle (RCD = 2, AnW = 2, TPC = 1)
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