HD6475348R Datasheet, PDF (151/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

Figure 7-3 shows the timing of the operation in this mode when the wait count is 1 (WC1 = 0,
WC0 = 1) and the WAIT pin is held Low to insert one additional wait state.
Wait
WAIT
count
pin
T1
T2
TW
TW
T3
ø
*
*
WAIT pin
A19 –A0
RD, AS,
DS (Read)
D7 –D0
WR, DS
(Write)
Off-chip address
D7 –D0
Write data
* The arrowheads indicate the times at which the WAIT pin is sampled.
Figure 7-3 Pin Wait Mode
Read data
Fig. 7-3
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