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SH7708 Datasheet, PDF (561/633 Pages) Renesas Technology Corp – SuperH™ RISC engine
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TRc
TRr1
TRr2
(Tpc)
CKIO
CE
OE/RFSH
(High)
tOED
tOED
Figure 17.49 Pseudo-SRAM Auto-Refresh Cycle (TRAS = 1, TPC = 1)
TRc
TRr1
TRrw
TRrw
TRr2
(Tpc)
(Tpc)
CKIO
CE
OE/RFSH
tOED
(High)
tOED
Figure 17.50 Pseudo-SRAM Auto-Refresh Cycle (TRAS = 2, TPC = 1)
TRc
TRr1
CKIO
TSR
TSR2 (Tpc)
(Tpc)
CE
OE/RFSH
tOED (High)
tOED
Figure 17.51 Pseudo-SRAM Self-Refresh Cycle (TPC = 0)
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