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Chapter 1
Overview
I - 12
Pin Description
Table 1-3-3
Pin Function Summary (2/7)
Name
No.
I/O
Other Function
Function
Description
80LQFP
84QFP
P20
P21
P22
P23
41
42
43
-
43
44
45
46
Input
IRQ0
IRQ1, ACZ
IRQ2
IRQ3
Input port 2
4-bit input port.
A p ull-up re s i s tor fo r eac h b i t c a n b e s elec te d
individually by the P2PLU register. At reset, pull-up
resistors are disabled.(Pull-up resistor of only P23 is
enabled.)
P27
16
18
Input
NRST
I/O port 2
Port P27 has an n-channel open-drain configuration.
When " 0" i s wri tten and the reset is initiated by
software, a low level will be output.
P30
P31
P32
P33
77
78
79
80
81
82
83
84
I/O
COM0
COM1
COM2
COM3
I/O port 3
4-bit CMOS tri-state I/O port.
Each bit can be set individually as either an input or
output by the P3DIR register. A pull-up resistor for each
bit can be selected individually by the P3PLU register.
At reset, the i nput mode i s selected and pull-up
resistors are disabled (high impedance output).
P40
P41
P42
P43
P44
P45
P46
P47
45
46
47
48
49
50
51
52
48
49
50
51
52
53
54
55
I/O
KEY0, SDO0, SEG31
KEY1, SDO1, SEG30
KEY2, SDO2, SEG29
KEY3, SDO3, SEG28
KEY4, SDO4, SEG27
KEY5, SDO5, SEG26
KEY6, SDO6, SEG25
KEY7, SDO7, SEG24
I/O port 4
8-bit CMOS tri-state I/O port.
Each bit can be set individually as either an input or
output by the P4DIR register. A pull-up resistor for each
bit can be selected individually by the P4PLU register.
At reset, the i nput mode i s selected and pull-up
resistors are disabled (high impedance output).
P50
P51
P52
P53
-
6
7
8
6
7
8
9
I/O
TM0O, LED0
TM7O, LED1
TM2O, LED2
TM8O, LED3
I/O port 5
4-bit CMOS tri-state I/O port.
Each bit can be set individually as either an input or
output by the P5DIR register. A pull-up resistor for each
bit can be selected individually by the P5PLU register.
At reset, the i nput mode i s selected and pull-up
resistors are disabled (high impedance output).
(Pull-up resistor of only P50 is enabled.)
P60
P61
P62
P63
P64
P65
P66
P67
53
54
55
56
57
58
59
60
56
57
58
59
60
61
62
63
I/O
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
I/O port 6
8-bit CMOS tri-state I/O port.
Each bit can be set individually as either an input or
output by the P6DIR register. A pull-up resistor for each
bit can be selected individually by the P6PLU register.
At reset, the i nput mode i s selected and pull-up
resistors are disabled (high impedance output).