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HD6475328-CP10 Datasheet, PDF (150/459 Pages) Hitachi Semiconductor – original Hitachi CMOS microcomputer unit (MCU) | |||
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Figure 7-3 shows the timing of the operation in this mode when the wait count is 1 (WC1 = â0,â
WC0 = â1â) 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 âA0
RD, AS,
DS (Read)
D7 âD0
WR, DS
(Write)
Off-chip address
D7 âD0
Write data
* The arrowheads indicate the times at which the WAIT pin is sampled.
Figure 7-3 Pin Wait Mode
Read data
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