HD64F38602R Datasheet, PDF (160/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 8 I/O Ports
8.2.6 Input Pull-Up MOS
Port 3 has an on-chip input pull-up MOS function that can be controlled by software. When a
PCR3 bit is cleared to 0, setting the corresponding PUCR3 bit to 1 turns on the input pull-up MOS
for that pin. The input pull-up MOS function is in the off state after a reset.
PCR3n
0
PUCR3n
0
1
Input Pull-Up MOS
Off
On
[Legend] x: Don't care.
(n = 2 to 0)
1
x
Off
8.3 Port 8
Port 8 is an I/O port also functioning as a timer W I/O pin. Figure 8.3 shows its pin configuration.
P84/FTIOD
P83/FTIOC
P82/FTIOB
Figure 8.3 Port 8 Pin Configuration
Port 8 has the following registers.
• Port data register 8 (PDR8)
• Port control register 8 (PCR8)
• Port pull-up control register 8 (PUCR8)
Rev. 3.00 May 15, 2007 Page 128 of 516
REJ09B0152-0300