HD6417021 Hitachi Semiconductor, HD6417021 Datasheet - Page 485

• Manufacturer Part Number: HD6417021
• Description: SuperH RISC engine
• Manufacturer: Hitachi Semiconductor

Notes: 1.
2.
3.
AD15–AD0
RD (Read)
DPH, DPL
HBS, LBS
For t
instead of t
For t
t
RDH
A21–A0
DACK0
DACK1
(Read)
RDAC1
ACC1
is measured from A21–A0, CSn, or RD, whichever is negated first.
CSn
CK
Figure 19.21 Basic Bus Cycle: One-State Access
, use t
, use t
cyc
– t
cyc
cyc
RDD
– 44 instead of t
t
CSD1
– t
t
0.65 – 35 (for 35% duty) or t
AD
t
RDD
RDS
.
T
1
t
t
ACC1
DACD1
cyc
t
RDAC1
*
– t
2
t
AD
*
RDS
1
(or t
t
t
CSD2
DACD2
t
CSD1
RSD
cyc
) – t
t
RDH
0.5 – 35 (for 50% duty)
RDS
*
3
.
HITACHI 477