HD6432633 Datasheet, PDF (515/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

Pin
P34/RxD1
P33/TxD1
P32/SCK0/
IRQ4
Selection Method and Pin Functions
Switches as follows according to combinations of ICCR0 ICE bit of IIC0, SCR RE bit
of SCI1, and the P34DDR bit.
RE
0
1
P34DDR
0
1
—
Pin function
P34 input pin
P34 output pin*
RxD1 input pin
Note: * Output type is NMOS push-pull. When P34ODR = 1, it becomes NMOS
open drain tray.
Switches as follows according to combinations of ICCR1 ICE bit of IIC1, SCR TE bit
of SCI1 and the P33DDR bit.
TE
0
1
P33DDR
0
1
—
Pin function
P33 input pin
P33 output pin*
TxD1 output pin*
Note: * When P33ODR = 1, it becomes NMOS open drain output.
Switches as follows according to combinations of SMR C/A bit of SCI0, SCR CKE0
and CKE1 bits, and the P32DDR bit.
If using as an SDA1 input pin, always set SMR C/A bit of SCI0 and SCR CKE0 and
CKE1 bits to 0 without fail.
CKE1
0
1
C/A
0
1
—
CKE0
0
1
—
—
P32DDR
0
1
—
—
—
Pin function
P32
input pin
P32 SCK0 output SCK0 output SCK0
output pin
pin*
pin*
input pin
IRQ4 input
Note: * When P32ODR = 1, it becomes NMOS open drain output.
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