Intel MCS48 User Manual page 215

WAVEFORMS
8755A
Figure
2.
Clock
Specification
for
8755A
(PROGl/CE,
x
A
°°
,
' is
y
X
«,,
>
—
-f~
jg!
\
/
\
\
\
-t L
c
\
Please note
that
CEi must remain low
tor
the
entire cycle.
X
>—
<
f
/
>
\
/
X
Figure
3.
PROM
Read,
I/O
Read and
Write
Timing
6-63