HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 251

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Table 8.7
Pin
P3
P3
P3
P3
234
3
2
1
0
/RxD1
/RxD0
/TxD1
/TxD0
Port 3 Pin Functions (cont)
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
bit RE in the SCI1 SCR, and bit P33DDR.
Note: * When P33ODR = 1, the pin becomes an NMOS open-drain output.
The pin function is switched as shown below according to the combination of
bit RE in the SCI0 SCR, and bit P32DDR.
Note: * When P32ODR = 1, the pin becomes an NMOS open-drain output.
The pin function is switched as shown below according to the combination of
bit TE in the SCI1 SCR, and bit P31DDR.
Note: * When P31ODR = 1, the pin becomes an NMOS open-drain output.
The pin function is switched as shown below according to the combination of
bit TE in the SCI0 SCR, and bit P30DDR.
Note: * When P30ODR = 1, the pin becomes an NMOS open-drain output.
RE
P33DDR
Pin function
RE
P32DDR
Pin function
TE
P31DDR
Pin function
TE
P30DDR
Pin function
P3
P3
P3
P3
3
2
1
0
input pin
input pin
input pin
input pin
0
0
0
0
0
0
0
0
P3
P3
P3
P3
3
2
1
0
output pin*
output pin*
output pin*
output pin*
1
1
1
1
TxD1 output pin
TxD0 output pin
RxD1 input pin
RxD0 input pin
—
—
—
—
1
1
1
1