H8SX1651 Datasheet, PDF (401/812 Pages) Renesas Technology Corp – Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

Section 9 I/O Ports
(2) PF6/A22/CS6-D
The pin function is switched as shown below according to the combination of port function control
register (PFCR) and the PF6DDR bit settings.
Module Name
Bus controller
I/O port
Pin Function
A22 output
CS6-D output
PF6 output
PF6 input
(initial setting)
A22_OE
1
0
0
0
Setting
I/O Port
CS6D_OE

1
0
0
PF6DDR


1
0
(3) PF5/A21/CS5-D
The pin function is switched as shown below according to the combination of port function control
register (PFCR) and the PF5DDR bit settings.
Module Name
Bus controller
I/O port
Pin Function
A21 output
CS5-D output
PF5 output
PF5 input
(initial setting)
A21_OE
1
0
0
0
Setting
I/O Port
CS5D_OE

1
0
0
PF5DDR


1
0
(4) PF4/A20
The pin function is always address output.
Module Name
Bus controller
Pin Function
A20 output
Setting
I/O Port
PF4DDR

Rev.2.00 Jun. 28, 2007 Page 377 of 784
REJ09B248-0200