SH7020 Datasheet, PDF (471/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

CK
A21–A0
HBS, LBS
CSn
RD (Read)
AD15–AD0
DPH, DPL
(Read)
DACK0
DACK1
T₁
t_AD
t_CSD1
t_CSD2
t_RDD
t_RDAC1*¹
t_RSD
t_ACC1*² t_RDS
t_RDH*³
t_DACD1
t_DACD2
Notes: 1.
2.
3.
For t_RDAC1, use t_cyc × 0.65 – 20 (for 35% duty) or t_cyc × 0.5 – 20 (for 50% duty)
instead of t_cyc – t_RDD – t_RDS.
For t_ACC1, use t_cyc – 30 instead of t_cyc – t_AD (or t_CSD1) – t_RDS.
t_RDH is measured from A21–A0, CSn, or RD, whichever is negated first.
Figure 19.8 Basic Bus Cycle: One-State Access
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