HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 362

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

20.3.1 Bus Timing
1. Basic Bus Cycle (without Wait States) in Expanded Modes
ø
A
R/W
AS,
DS (Read),
RD
D to D
(Read)
DS (Write),
WR
D to D
(Write)
19
7
7
to A
0
0
0
Figure 20-4 Basic Bus Cycle (without Wait States) in Expanded Modes
t
AD
t
CH
t
AS1
t
T
cyc
1
t
WDD
t
t
t
CL
AS2
Cf
t
DSD1
t
WDS
t
DSD2
t
t
ACC
Cr
351
T
2
t
DSWW
t
RDS
t
DSD3
T
3
t
RDH
t
DSD3
t
t
t
WDH
AH
AH