Motorola M68705EVM User Manual page 85

TABLE 5-4. 40-Pin MCU 110 Port Connector J1 Pin Assignments
PIN SIGNAL
NUMBER MNEMONIC
1
vss
2 NC
3 INT*
4-7 NC
8 TIMER
9 PCO
10 PC1
1 1 PC2
12 PC3
13 PC4
14 PC5
15 PC6
16 PC7
17 PD7
18 PD6/INT2*
19 PD5NRH
20
PD4NRL
21 PD3/AN3
22 PD2/AN2
23 PD1/AN1
24 PDQ/ANO
25 PBO
26 PB1
27 PB2
28 PB3
29 PB4
30 PB5
31 PB6
32 PB7
EVALUATION MODULE USER'S MANUAL
M68705EVM
SIGNAL NAME AND DESCRIPTION
GROUND
Not connected.
INTERRUPT REQUEST - An input
signal that asynchronously applies an
MCU interrupt.
Not connected.
TIMER - Input mode, serves as timer
clock. Output mode, reflects contents of
DOUT bit of timer status and control
register each time TMZ bit has a low to
high transition.
PORT C (bits 0-3) - General purpose 1/0
lines controlled by software via data
direction registers.
PORT D (bits 0-7) - General purpose
input lines; or four analog input lines,
two voltage reference input lines, and a
second interrupt request line.
PORT B (bits 0-7) - General purpose 1/0
lines controlled by software via data
direction registers.
MOTOROLA
5-5
I