HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 164

• Manufacturer Part Number: HD6475328-CP10
• Description: original Hitachi CMOS microcomputer unit (MCU)
• Manufacturer: HITACHI [Hitachi Semiconductor]

Table 9-4 Port 1 Pin Functions in Single-Chip Modes
Pin
P1
P1
P1
P1
P1
7
6
5
4
3
/ TMO
/ IRQ
/ IRQ
1
0
Selection of Pin Functions
The function depends on output select bits 3 to 0 (OS3 to OS0) of the 8-bit timer
control/status register (TCSR) and on the P1
OS3 to OS0
P1
Pin function
The function depends on the IRQ
IRQ
P1
Pin function
The function depends on the IRQ
IRQ
P1
Pin function
P1
Pin function
P1
Pin function
7
6
5
4
3
DDR
DDR
DDR
DDR
DDR
1
0
E
E
P1
P1
P1
All four bits are “0”
Input
Input
7
6
5
0
0
0
0
0
input
input
input
0
0
P1
P1
P1
7
6
5
Output
Output
output
output
output
147
1
1
1
0
1
E bit and the P1
E bit and the P1
1
1
At least one bit is “1”
7
DDR bit as follows:
0
0
0
TMO output
IRQ
IRQ
6
5
DDR bit as follows:
DDR bit as follows:
1
0
1
1
input
input
1
1
1