HD6432621 Hitachi, HD6432621 Datasheet - Page 302

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

Pin
PC5/A5/SCK1/
IRQ5
258
Selection Method and Pin Functions
The pin function is switched as shown below according to the operating mode,
bit C/A in the SCI1’s SMR, bits CKE0 and CKE1 in SCR, and bit PC5DDR.
Operating
Mode
PC5DDR
CKE1
C/A
CKE0
Pin function
Operating
Mode
CKE1
C/A
CKE0
PC5DDR
Pin function
Modes 4
output
and 5
A5
input
—
—
—
—
PC5
0
0
input
PC5
0
output
PC5
0
1
0
output
SCK1
0
1
0
IRQ5 input
IRQ5 input
Mode 7
output
SCK1
—
1
0
Mode 6
output
SCK1
—
1
output
SCK1
—
—
1
SCK1
input
—
—
1
SCK1
input
output
—
—
—
1
A5
—
—
—
1