Intel 8XC196MC User Manual
8XC196MC, MD, MH USER’S MANUAL
16-26
Figure 16-12. Auto Programming Circuit
270k
Ω
+5.0V
XTAL1
20 pF
20 pF
XTAL2
P2.7/PACT#
P2.5
P2.4
P2.3
P2.2
P2.1
P2.4
P2.3
P2.2
P2.1
P2.0/PVER
RESET#
+12.50V
100 k
Ω
1 k
Ω
10µF
74HC14
1.0µF
Reset
EA#
V
PP
V
REF
P0.7/
PMODE.3
PMODE.3
P0.6/
PMODE.2
PMODE.2
P0.5/
PMODE.1
PMODE.1
P0.4/
PMODE.0
PMODE.0
ANGND
READY/P5.6
NMI
BUSWIDTH/P5.7
RD#/P5.3
MH
P1.3:0
AD11:8
87C196M
x
A7:0
ALE/P5.0
A15:8
OE#
CE#
LE OE#
O7:0
74LS373
V
CC
V
CC
V
CC
A3111-01
V
CC
V
CC
V
SS
27(C)512
270k
Ω
V
CC
74HC14
74HC14
ON = Programming
ON = Error
AD7:0
MC/MD
AD15:8