Change Of Peripheral Function Pins; Port Control Register 0 (Ptcnt0) - Renesas H8S Series Hardware Manual

8.17

Change of Peripheral Function Pins

For the 8-bit timer input/output, 8-bit PWM timer output, and IIC input/output, the multi-function
I/O ports can be changed. I/O ports that also function as the external sub-clock input pin, 8-bit
timer input/output pins, and the 8-bit PWM timer output pins are changed according to the setting
of PTCNT0. I/O ports that also function as the IIC input/output pins are changed according to the
setting of PTCNT1. I/O ports that also function as the docking LPC input/output pins are changed
according to the setting of PTCNT2. The pin name of the peripheral function is indicated by
adding 'Ex' at the head of the original pin name. In each peripheral function description, the
original pin name is used.
8.17.1

Port Control Register 0 (PTCNT0)

PTCNT0 selects ports that also function as the external sub-clock input pin, 8-bit timer
input/output pins, and 14-bit PWM timer output pins.
Bit Bit Name
7 TMCI0S
6 TMCI1S
5 TMIXS
4 TMIYS
3 TMOXS
2 PWMAS
1 PWMBS
0 EXCLS
Initial Value R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
0 R/W
Description
0: P40/TMCI0 is selected
1: PG0/ExTMCI0 is selected
0: P43/TMCI1 is selected
1: PG1/ExTMCI1 is selected
0: P60/TMIX is selected
1: PG2/ExTMIX is selected
0: P62/TMIY is selected
1: PG3/ExTMIY is selected
0: P67/TMOX is selected
1: PF3/ExTMOX is selected
0: P27/PW15 and P26/PW14 are selected
1: PF7/ExPW15 and PF6/ExPW14 are selected
0: P25/PW13 and P24/PW12 are selected
1: PF5/ExPW13 and PF4/ExPW12 are selected
0: P96/EXCLK is selected
1: P50/ExEXCL is selected
Rev. 3.00 Jul. 14, 2005 Page 243 of 986
Section 8 I/O Ports
REJ09B0098-0300