Intel MCS48 User Manual page 412

8041 A/8741
WAVEFORMS
Combination
Program/Verify
Mode (EPROMs
Only)
\
1
/
/
V
nn nn
\_
_/
ADDRESS
\J
DATA TO
BE
\
f
\Y
DATA
\_
/
NEXT
ADDR
V^
UB
°"
UB7
f~
~\
(0-7)
VALID
A
PROGRAMMED
VALID
t~ ""
^
A
VALID
T~
~"\
VALID Al
izzzx:
P20
"
Pl
ADDRESS
y\
ADDRESS
(8-9)
VALID
"A.
•VDDH
tWT"
\
/
'DO +\
7~\i...
j-
NEXT
ADDRESS
A.
Verify
Mode (ROM/EPROM)
VERIFY
MODE
(ROM/EPROM)
\
J
\
/
V
/
ADDRESS
\J
DATA OUT
\_
/
NEXT
y
NEXT DATA
\^
"\
(0-7)
VALID Al VALID
f
~~\
ADDRESS
hi
OUT VALID
7~
ADDRESS
(8-9)
VALID
X
NEXT ADDRESS VALID
8-122
00188A