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Semiconductor
MSM64162
Basic Functions (continued)
Function Symbol
Pin
Pad
Type
Description
4-bit input port (P0):
Selectable as pull-up resistor input, pull-down resistor
input, or high impedance input by the port 01 control
register (P01CON).
As secondary functions, P0.0 to P0.3 are assigned
external interrupt functions, P0.0 and P0.1 are assigned
a capture trigger function, and P0.3 is assigned an
analog comparator input for battery check.
Ports
37
O
Resistance temperature sensor connection pin
(for channel 0)
RT0
38
O
A/D
Converter
Resistance/capacitance temperature sensor connection
pin (for channel 0)
39
O
RS0
Reference resistor connection pin (for channel 0)
40
O
CS0
Reference capacitor connection pin (for channel 0)
CRT0
P0.0
33
I
P0.1
34
I
P0.2
35
I
P0.3
36
I
4-bit output port (P1):
Selectable as NMOS open drain output or CMOS output
by the port 01 control register (P01CON). P1.0 is a
high current drive output port.
P1.0
55
O
P1.1
56
O
P1.2
57
O
P1.3
58
O
4-bit input-output port (P2):
Following can be specified for each bit by the port 2
control registers 0 to 3 (P20CON to P23CON): (1) input
or output, (2) pull-up/pull-down resistor input or high
impedance input, and (3) NMOS open drain output or
CMOS output.
As secondary functions, P2.0 to P2.3 are assigned
external interrupt functions.
P2.0
46
I/O
P2.1
47
I/O
P2.2
48
I/O
P2.3
49
I/O
4-bit input-output port (P3):
Following can be specified for each bit by the port 3
control registers 0 to 3 (P30CON to P33CON): (1) input
or output, (2) pull-up/pull-down resistor input or high
impedance input, and (3) NMOS open drain output or
CMOS output.
As secondary functions, P3.0 to P3.3 are assigned
external interrupt functions, P3.3 is assigned a function
that monitors the RC oscillation clock for A/D converter.
P3.0
50
I/O
P3.1
51
I/O
P3.2
52
I/O
P3.3/MON
53
I/O
41
I
Input pin for RC oscillator circuit (for channel 0)
IN0
45
O
Resistance temperature sensor connection pin
(for channel 1)
44
O
RS1
Reference resistor connection pin (for channel 1)
43
O
CS1
Reference capacitor connection pin (for channel 1)
RT1
54
O
Output pin for the buzzer driver
BD
Buzzer
42
I
IN1
Input pin for RC oscillator circuit (for channel 1)
6
8
9
10
2
3
4
5
29
31
34
35
17
18
19
20
21
23
25
26
11
16
15
13
27
12
64QFP 80QFP