Zilog Z16C35 User Manual
Page 157
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Application Note
Interfacing Z80
®
CPUs to the Z8500 Peripheral Family
6-3
6
Write Cycle Timing
Figure 2 illustrates the Z8500 Write cycle timing. All
register addresses and /INTACK must remain stable
throughout the cycle. If /CE goes active after /WR goes
active, or if /CE goes inactive before /WR goes inactive,
then the effective Write cycle is shortened. Data must be
available to the peripheral prior to the falling edge of /WR.
Figure 1. Z8500 Peripheral I/O Read Cycle Timing
Figure 2. Z8500 Peripheral I/O Write Cycle Timing
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