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| SH7708 Datasheet, PDF (469/625 Pages) Renesas Technology Corp – SuperH™ RISC engine | |||
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Tr
Trw
Trw
Tc1 Tcw
Tc2
Tc1
Tcw
Tc2
(Tpc)
CKIO
tAD
tAD
A25âA16
Row address
tAD tAS
tAD tAS
tAD
A15âA0
Row address
tRWD
tAH
RD/WR
tRASD1
RAS
CASxx
D31âD0
(read)
D31âD0
(write)
Column address
Column address
tRWD
tCASD1
tCASD1
tRASD1
tCASD1
tAH
tRWH
tAH
tRWH
tWDS
tRDS1
tRDH1
tRDS1
tRDH1
tWDD2
tBSD tBSD
tWDH3
tWDD2
tWDH3
tWDH1
BS
tCSD1
tCSD1
CS2 or CS3
Figure 16.26 DRAM Burst Bus Cycle (RCD = 2, AnW = 2, TPC = 0)
455
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