Port Function Control Register 0 (Pfcr0); Port Function Control Register 1 (Pfcr1) - Renesas H8S/2368 Series Hardware Manual

9.8.6

Port Function Control Register 0 (PFCR0)

PFCR0 controls the I/O port.
Bit Bit Name Initial Value
7 CS7E 1
6 CS6E 1
5 CS5E 1
4 CS4E 1
3 CS3E 1
2 CS2E 1
1 CS1E 1
0 CS0E 1
9.8.7

Port Function Control Register 1 (PFCR1)

PFCR1 performs I/O port control. Bits 7 to 5 are valid in modes 1 and 2 and all the bits are valid
in modes 4 and 7.
Bit Bit Name Initial Value
7 A23E 1
6 A22E 1
5 A21E 1
4 A20E 1
Rev. 2.00, 05/03, page 344 of 820
R/W Description
CS7 to CS0 enable
R/W
Enable/disable corresponding CSn output.
R/W
0: Set as I/O port.
R/W
1: Set as CSn output pin.
R/W
R/W
R/W
R/W
R/W
R/W Description
R/W Address 23 Enable
Enables or disables output for address output 23 (A23).
0: DR output when PA7DDR = 1
1: A23 output when PA7DDR = 1
R/W Address 22 Enable
Enables or disables output for address output 22 (A22).
0: DR output when PA6DDR = 1
1: A22 output when PA6DDR = 1
R/W Address 21 Enable
Enables or disables output for address output 21 (A21).
0: DR output when PA5DDR = 1
1: A21 output when PA5DDR = 1
R/W Address 20 Enable
Enables or disables output for address output 20 (A20).
0: DR output when PA4DDR = 1
1: A20 output when PA4DDR = 1
(n = 7 to 0)