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I.
Input Mode
b.
Output Mode
Figure
3.
1/0 Port Timing
ClK
ALE
8355/8355·2
ROOR
iOR
tJ~
PORT
=x
INPUT
DATA'
- - - - - - -
)(
BUS
- - - - ---
------------.
PORT
OUTPUT
'wp
GLITCH FREE
/OUTPUT
DATA'-----
~
BUS
_____
...I\
_______
JX
____
_
'DATA
BUS
TIMING
IS
SHOWN
IN FIGURE
4.
,
....
_-----
Figure
4.
Wilt
Stlta
Timing (READY =
0)
6-73