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| PC87109VBE Datasheet, PDF (52/56 Pages) National Semiconductor (TI) – PC87109VBE Advanced UART and Infrared Controller | |||
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CS
A0-A3
WR
RD
IRQ
D0-D7
tAW
tCSS
Valid
tWR
WR
tWA
tWRV
tCSH
tWI
tDS
tDH
Valid Data
Figure 5-4. CPU Write Timing
Valid
DRQ
DACK
RD, WR
TC
.
tDKS
t DKH
tDSQ
tDSW
tTCS
tTCH
Figure 5-5. DMA Access Timing
52
www.national.com
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