Datasheet
Section 10 I/O Ports 
R01UH0310EJ0500 Rev. 5.00    Page 559 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
(2)  Pin Functions of H8S/2424 Group 
•  P27/PO7/TIOCB5/SCL2 
The pin function is switched as shown below according to the combination of the TPU channel 
5 settings (by bits MD3 to MD0 in TMDR_5, bits IOB3 to IOB0 in TIOR_5, and bits CCLR1 
and CCLR0 in TCR_5), bit NDER7 in NDERL of the PPG, bit ICE in ICCRA_2 of the I
2
C, 
and bit P27DDR. 
ICE 0 1 
TPU channel 5 
settings 
(1) in table 
below 
(2) in table below  ⎯ 
P27DDR  ⎯ 0  1  1  ⎯ 
NDER7  ⎯  ⎯ 0  1  ⎯ 
P27 input  P27 output  PO7 output  SCL2 I/O*
2
 Pin function  TIOCB5 
output 
TIOCB5 input*
1
Notes:  1.  TIOCB5 input when MD3 to MD0 = B'0000 or B'01xx and IOB3 = 1. 
  2.  NMOS open-drain output regardless of P27ODR. 
TPU channel 5 
settings 
(2) (1) (2) (2) (1) (2) 
MD3 to MD0  B'0000, B'01xx  B'0010  B'0011 
IOB3 to IOB0  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'10 
B'10 
Output function  ⎯ Output 
compare 
output 
⎯  ⎯ PWM mode 
2 output 
⎯ 
[Legend] 
x: Don't care 










