Datasheet
Section 10 I/O Ports 
R01UH0310EJ0500 Rev. 5.00    Page 641 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
•  PC4/A4/TIOCA10 
The pin function is switched as shown below according to the combination of the operating 
mode, bit EXPE, TPU channel 10 settings (by bits MD3 to MD0 in TMDR_10, bits IOA3 to 
IOA0 in TIOR_10, and bits CCLR1 and CCLR0 in TCR_10), and bit PC4DDR. 
Operating 
mode 
1, 2  4 3, 7 (EXPE = 1)  3, 7 (EXPE = 0) 
TPU channel 
10 settings 
⎯  ⎯  (1) in table 
below 
(2) in table below 
PC4DDR  ⎯ 0  1 ⎯ 0  1 
PC4 input  PC4 output Pin function  A4 output  PC4 input  A4 output  TIOCA10 
output 
TIOCA10 input*
1
TPU channel 10 
settings 
(2) (1) (2) (1)  (1) (2) 
MD3 to MD0  B'0000, B'01xx B'001x B'0010  B'0011 
IOA3 to IOA0  B'0000, 
B'0100, 
B'1xxx 
B'0001 to 
B'0011, 
B'0101 to 
B'0111 
B'xx00  Other than B'xx00 
CCLR1, 
CCLR0 
⎯  ⎯  ⎯  ⎯ Other than 
B'01 
B'01 
Output function  ⎯ Output 
compare 
output 
⎯ PWM*
2
mode 
1 output 
PWM mode 
2 output 
⎯ 
[Legend] 
x: Don't care 
Notes:  1.  TIOCA10 input when MD3 to MD0 = B'0000 or B'01xx and IOA3 to IOA0 = B'10xx. 
  2.  TIOCB10 output disabled. 










