HD6432621 Hitachi, HD6432621 Datasheet - Page 305

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Pin
PC1/A1/RxD0
PC0/A0/TxD0
Selection Method and Pin Functions
The pin function is switched as shown below according to the operating mode,
bit RE in the SCI0’s SCR, and bit PC1DDR.
The pin function is switched as shown below according to the operating mode,
bit TE in the SCI0’s SCR, and bit PC0DDR.
Operating
Mode
PC1DDR
RE
Pin function
Operating
Mode
RE
PC1DDR
Pin function
Operating
Mode
PC0DDR
TE
Pin function
Operating
Mode
TE
PC0DDR
Pin function
A1 output
A0 output
Modes 4
Modes 4
and 5
and 5
PC1 input
PC0 input
—
—
—
—
0
0
PC1 input
PC0 input
0
0
0
0
PC1 output
PC0 output
Mode 7
Mode 7
1
1
0
0
TxD0 output
RxD0 input
Mode 6
Mode 6
1
1
TxD0 output
RxD0 input
A1 output
A0 output
—
—
1
1
—
—
1
1
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