HD6432646 Hitachi, HD6432646 Datasheet - Page 204

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Figure 7-13 shows an example of wait state insertion timing.
The settings after a reset are: 3-state access, 3 program wait state insertion.
170
Read
Write
Note: Downward arrows show the timing of WAIT pin sampling.
Address bus
HWR, LWR
Data bus
Data bus
WAIT
RD
AS
ø
Figure 7-13 Example of Wait State Insertion Timing
T
1
By program wait
T
2
T
w
Write data
T
By WAIT pin
w
T
w
Read data
T
3