R5F61655N50FPV Datasheet, PDF (568/1376 Pages) Renesas Technology Corp – Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

Section 13 I/O Ports
13.2.7 Port D
The pin function of port D can be switched with that of port J according to the combination of
operating mode, the EXPE bit, and the PCJKE bit settings. The pin function of port D can be
switched according to the PCJKE bit setting in the single-chip mode (EXPE = 0). However, do not
change the setting of the PCJKE bit in external extended mode. For details, see section 13.3.12,
Port Function Control Register D (PFCRD).
(1) PD7/A7, PD6/A6, PD5/A5, PD4/A4, PD3/A3, PD2/A2, PD1/A1, PD0/A0
The pin function is switched as shown below according to the combination of operating mode, the
EXPE bit, and the PDnDDR bit settings.
Setting
I/O Port
Module Name Pin Function
MCU Operating Mode
PDnDDR
Bus controller Address output On-chip ROM disabled extended mode ⎯
On-chip ROM enabled extended mode 1
I/O port
PDn output
Single-chip mode*
1
PDn input
Modes other than on-chip ROM
0
(initial value)
disabled extended mode
[Legend]
n: 0 to 7
Note: * Address output is enabled by setting PDnDDR = 1 in external extended mode
(EXPE = 1)
Rev. 2.00 Oct. 20, 2009 Page 536 of 1340
REJ09B0499-0200