UPD17073 NEC, UPD17073 Datasheet - Page 57

• Manufacturer Part Number: UPD17073
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
• Manufacturer: NEC

10. GENERAL-PURPOSE PORT
from external circuits.
10.1 General
Port 0A
Port 0B
Port 0C
Port 0D
Port 1A
Port 1B
Port 1C
Port
The general-purpose ports output high or low floating signals to external circuits, and reads high or low level signals
Table 10-1 shows the relations between each port and port register.
The general-purpose ports are classified into I/O ports, input ports, and output ports.
The I/O port is the bit I/O ports, which can be set in the input or output mode in 1-bit (1-pin) units.
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – –-
– – – – – – – – – – – – – – – – – – –-
– – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – -
– – – – – – – – – – – – – – – – – – – – – – – – – – – –
56-pin 64-pin
QFP
56
55
54
53
15
14
17
16
13
12
11
10
5
4
3
2
9
8
7
6
1
No pin
No pin
No pin
No.
TQFP
63
62
61
17
16
18
15
14
13
11
10
64
19
6
4
3
2
9
8
7
1
Table 10-1. Relations between Each Port (Pin) and Port Register
Pin
Symbol
P0A3
P0A2
P0A1
P0A0
P0B3
P0B2
P0B1
P0B0
P0C1
P0C0
P0D3
P0D2
P1A3
P1A2
P1A1
P1A0
P1B3
P1B2
P1B1
P1B0
P1C0
(bit I/O)
(bit I/O)
(bit I/O)
Output
Output
Output
Input
I/O
I/O
I/O
I/O
BANK0
BANK1
Bank
Port register (data memory)
Address Symbol
70H
71H
72H
73H
70H
71H
72H
73H
P0C
P0D
P1A
P1B
P1C
P0A
P0B
–
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – –
– – – – –
– – – – –
– – – – – – – – – – – –
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – –
(reserved word)
Data setting method
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
b
Bit symbol
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
3
2
1
0
P0A3
P0A2
P0A1
P0A0
P0B3
P0B2
P0B1
P0B0
P0C1
P0C0
P0D3
P0D2
P1A3
P1A2
P1A1
P1A0
P1B3
P1B2
P1B1
P1B0
P1C0
–
–
–
–
–
–
–
–
Fixed to “0”
Fixed to “0”
Fixed to “0”
Test mode area. Do not write
“1” to this area.
PD17072,17073
Remarks
57