HD6432351 Datasheet, PDF (365/989 Pages) Renesas Technology Corp – The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise

Table 9-7 Port 3 Pin Functions (cont)
Pin
P3₃/RxD1
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.
RE
0
1
P33DDR
0
1
—
Pin function
P3₃ input pin
P3₃ output pin*
RxD1 input pin
Note: * When P33ODR = 1, the pin becomes an NMOS open-drain output.
P3₂/RxD0
The pin function is switched as shown below according to the combination of
bit RE in the SCI0 SCR, and bit P32DDR.
RE
0
1
P32DDR
0
1
—
Pin function
P3₂ input pin
P3₂ output pin*
RxD0 input pin
Note: * When P32ODR = 1, the pin becomes an NMOS open-drain output.
P3₁/TxD1
The pin function is switched as shown below according to the combination of
bit TE in the SCI1 SCR, and bit P31DDR.
TE
0
1
P31DDR
0
1
—
Pin function
P3₁ input pin
P3₁ output pin* TxD1 output pin
Note: * When P31ODR = 1, the pin becomes an NMOS open-drain output.
P3₀/TxD0
The pin function is switched as shown below according to the combination of
bit TE in the SCI0 SCR, and bit P30DDR.
TE
0
1
P30DDR
0
1
—
Pin function
P3₀ input pin
P3₀ output pin* TxD0 output pin
Note: * When P30ODR = 1, the pin becomes an NMOS open-drain output.
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