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