參數資料
型號: μPD780983
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數: 23/121頁
文件大?。?/td> 350K
代理商: ΜPD780983
CHAPTER 2 HARDWARE CONFIGURATION
23
2.2.2 Pin Mapping
Table 2-1. Pin Mapping
No.
Pin
name
I/O
Signal name
A
R
Setting No.
Pin
name
I/O
Signal name
A
R
Setting
1
P40
I/O SEG LED (a) output
H
I
L
33
AV
SS
-
(To be connected to V
SS
)
-
-
-
2
P41
I/O SEG LED (b) output
H
I
L
34
P17
I
Changeover between 8
and 10 bits
-
I
I
3
P42
I/O SEG LED (c) output
H
I
L
35
P16
I
V/f control on/off
-
I
I
4
P43
I/O SEG LED (d) output
H
I
L
36
P15
I
-
I
I
5
P44
I/O SEG LED (e) output
H
I
L
37
P14
I
-
I
I
6
P45
I/O SEG LED (f) output
H
I
L
38
P13
I
TM7 count clock selection
-
I
I
7
P46
I/O SEG LED (g) output
H
I
L
39
P12
I
-
I
I
8
P47
I/O SEG LED (h) output
H
I
L
40
P11
I
-
I
I
9
P50
I/O SEG LED digit 3 output
H
I
H
41
P10
I
INTTM7 occurrence
frequency selection
-
I
I
10
P51
I/O SEG LED digit 2 output
H
I
L
42
AV
REF
-
-
-
-
11
P52
I/O SEG LED digit 1 output
H
I
L
43
AV
DD
-
Not used
(To be connected to V
DD
)
-
-
-
12
P53
I/O Operation indicator LED
H
I
L
44
RESET
I
Reset input
L
I
I
13
P54
I/O [ON/OFF] input
L
I
I
45
P02
I/O (To be connected to V
SS
)
-
I
I
14
P55
I/O [+] input
L
I
I
46
P03
I/O (To be connected to V
SS
)
-
I
I
15
P56
I/O [-] input
L
I
I
47
IC
-
(To be connected to V
SS
)
-
-
-
16
P57
I/O [Changeover] input
L
I
I
48
X2
-
System lock
-
-
-
17
V
SS0
-
Ground
-
-
-
49
X1
I
System lock
-
I
-
18
V
DD0
-
Supply voltage
-
-
-
50
V
SS1
-
Ground
-
-
-
19
TO70
O
U+ output
L
O
H
51
P00
I/O Error signal input
L
I
I
20
TO71
O
U- output
L
O
H
52
P01
I/O (To be connected to V
SS
)
-
I
I
21
TO72
O
V+ output
L
O
H
53
P30
I/O
-
I
I
22
TO73
O
V- output
L
O
H
54
P31
I/O
-
I
I
23
TO74
O
W+ output
L
O
H
55
P32
I/O
-
I
I
24
TO75
O
W- output
L
O
H
56
P33
I/O
-
I
I
25
P20
I/O
L
I
I
57
P34
I/O
-
I
I
26
P21
I/O
L
I
I
58
P35
I/O
-
I
I
27
P22
I/O
V/f table selection
L
I
I
59
P36
I/O
-
I
I
28
P23
I/O
L
I
I
60
P37
I/O
Not used
(To be connected to V
DD
)
-
I
I
29
P24
I/O
L
I
I
61
P64
I/O Enable signal output
L
I
H
30
P25
I/O
L
I
I
62
P65
I/O Test pin output
-
I
L
31
P26
I/O
Not used
L
I
I
63
P66
I/O Test pin output
-
I
L
32
V
DD1
-
Supply voltage
-
-
-
64
P67
I/O Test pin output
-
I
L
Remark
I/O
A
R
Setting:
:
:
:
Input/output (I: Input, O: Output)
Active level (H: High level, L: Low level)
Pin status at reset (I: Input, O: Output)
Setting made at initialization (I: Input, H: High-level output, L: Low-level output)
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