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Bus cycle
T
1
T
2
Address bus
ø
D15 to D8
Valid
D7 to D0
Valid
Read
D15 to D8
Valid
D7 to D0
Valid
Write
T
3
Notes: 1. n = 0 to 7
2. When RDNn = 0
Figure 6.17 Bus Timing for 16-Bit, 3-State Access Space
(Word Access)
6.5.4
Wait Control
When accessing external space, this LSI can extend the bus cycle by inserting one or more wait
states (T
w
). There are two ways of inserting wait states: program wait insertion and pin wait
insertion using the
:$,7
pin.
Содержание H8S/2376 F-ZTAT
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