SH7751 Datasheet, PDF (1125/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

23. Electrical Characteristics
CKIO
Bank
Precharge-sel
Tr
Trw
Tc1
Tc2
Tc3
Tc4
Trwl
Trwl
Tpc
t_AD
t_AD
Row
t_AD
Row
H/L
Address
CSn
RD/WR
RAS
CASS
DQMn
D31–D0
(write)
BS
Row
c1
t_CSD
t_RWD t_RWD
t_RASD t_RASD
t_CASD2
t_CASD2
t_DQMD
t_DQMD
t_WDD
t_WDD
c1
t_BSD
t_BSD
t_CSD
CKE
DACKn
(SA: IO → memory)
t_DACD t_DACD
Legend:
IO: DACK device
SA: Single address DMA transfer
DA: Dual address DMA transfer
DACK set to active-high
Figure 23.26 Synchronous DRAM Auto-Precharge Write Bus Cycle: Single
(RCD [1:0] = 01, TPC [2:0] = 001, TRWL [2:0] = 010)
Rev.4.00 Oct. 10, 2008 Page 1027 of 1122
REJ09B0370-0400