16
Gnd
1
2
D3
D2
3
4
D4
D1
5
6
D5
D0
7
8
D6
A0
9
10
D7
A1
11
12
A2
A10
13
14
A3
/OE
15
16
A4
A11
17
18
A5
A9
19
20
A6
A8
21
22
A7
A12
23
24
A13
/WR
25
26
/CS0
/CS1
27
28
/CS2
/CS3
29
30
/CS4
/CS5
31
32
/IRQ
+5V
33
34
M2
R/W
35
36
CS6
ECLK
37
38
CS7
BUS_PORT
The BUS_PORT supports off-board devices. Power (+5V),
Ground, Address lines, Data lines, and Control lines are
brought out to this 40 pin connector. Pin assignments are
shown here.
VPP Connector
The VPP + and - pins are used to apply a 12V DC
programming voltage for the programming of the 68HC711
On Chip EPROM.
PWR Terminal Block
These 3 connection points allow for alternate power input
(such as a battery or power supply) as well as output
voltage supply.
+V
+7 to 16V DC unregulated Input or Output
GND
Ground
+5V
+5V Input or Output
Gnd
39
40
/RESET
BUS_PORT
JUMPERS
Mode Select Jumpers
The MODA and MODB pins of the HC11 are pulled high by two 10k resistors. This is the
normal EXPANDED MODE configuration. A jumper on MODA will take MODA to ground. A
jumper on MODB will take MODB to ground. These two jumpers allow selection of any of the
following modes of operation:
MODA
MODB
Mode of Operation
ON
ON
Special Bootstrap / Programming
OFF
ON
Special Test
ON
OFF
Normal Single Chip
OFF
OFF
Normal Expanded (default)
