HD6432670 Hitachi, HD6432670 Datasheet - Page 492

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

The pin function is switched as shown below according to the combination of bit C/ $ in SMR of
SCI_0, bits CKE0 and CKE1 in SCR, and bit P34DDR.
CKE1
C/
CKE0
P34DDR
Pin function
Note: NMOS open-drain output when P34ODR = 1.
The pin function is switched as shown below according to the combination of bit RE in SCR of
SCI_1 and bit P33DDR.
RE
P33DDR
Pin function
Note: NMOS open-drain output when P33ODR = 1.
The pin function is switched as shown below according to the combination of bit RE in SCR of
SCI_0 and bit P32DDR.
RE
P32DDR
Pin function
Note: NMOS open-drain output when P32ODR = 1.
The pin function is switched as shown below according to the combination of bit TE in SCR of
SCI_1 and bit P31DDR.
TE
P31DDR
Pin function
Note: NMOS open-drain output when P31ODR = 1.
Rev. 2.0, 04/02, page 446 of 906
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P34/SCK0
P33/RxD1
P32/RxD0/IrRxD
P31/TxD1
input
P34
0
P33 input
P32 input
P31 input
0
0
0
0
output*
P34
0
1
0
0
0
0
P33 output*
P32 output*
P31 output*
output*
SCK0
—
1
1
1
1
output*
SCK0
—
—
1
TxD1 output*
RxD0/IrRxD
RxD1 input
input
—
—
—
1
1
1
SCK0
input
—
—
—
1