HD6417021 Hitachi Semiconductor, HD6417021 Datasheet - Page 471

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

Notes: 1.
WRH, WRL,
AD15–AD0
AD15–AD0
WR (Write)
DPH, DPL
DPH, DPL
HBS, LBS
A21–A0
DACK0
DACK1
DACK0
DACK1
(Read)
(Read)
(Read)
(Write)
(Write)
2.
WAIT
CSn
RD
CK
For t
50% duty) instead of t
For t
Figure 19.10 Basic Bus Cycle: Two States + Wait State
RDAC2
ACC2
, use t
, use t
cyc
T
cyc
1
t
WTS
(n + 2) – 30 instead of t
cyc
(n + 1.65) – 20 (for 35% duty) or t
(n + 2) – t
t
WTH
t
RDAC2
t
ACC2
T
W
*
RDD
*
2
1
t
WTS
– t
RDS
cyc
t
WTH
.
(n + 2) – t
T
2
cyc
AD
(n + 1.5) – 20 (for
(or t
CSD1
HITACHI 463
) – t
RDS
.