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XR68C192 Datasheet, PDF (26/32 Pages) Exar Corporation – DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER
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XR68C92/192
A 4 -A 1
R /-W
-C S
D 7 -D 0
-D A C K
A 4 -A 1
R /-W
-C S
D 7 -D 0
-D A C K
TAS
TRWS
TAH
TRWH
TCSL
TDD
Valid D ata
TDF
TCSH
TAKT
TAKL
TAKH
R ead C ycle Tim ing
TAS
TAH
TRWS
TRWH
TCSL
TDS
TDH
TAKT
TCSH
TAKL
TAKH
W rite C ycle Tim ing
Figure 2: Bus Timing (Read/Write cycle)
Rev. P1.10
26
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