Datasheet
Section 10 I/O Ports 
R01UH0310EJ0500 Rev. 5.00    Page 583 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
•  Modes 3 and 7 (EXPE = 0) 
BRLE 
BREQS 
⎯ 
ICE 0 1 
TPU channel 3 
settings 
(1) in table 
below 
(2) in table below  ⎯ 
RE  ⎯ 0 1 ⎯ 
P51DDR  ⎯ 0 1  1  ⎯  ⎯ 
NDER2  ⎯  ⎯ 0  1  ⎯  ⎯ 
P51 input P51 output PO2-B output*
6
RxD2 input  SCL3 I/O*
5
 TIOCC3-B 
output*
7
TIOCC3-B input*
1
*
7
IRQ1-A interrupt input*
2
Pin function 
TMCI0-B input*
3
*
8
TPU channel 3 
settings 
(2) (1) (2) (1) (1) (2) 
MD3 to MD0  B'0000  B'001x  B'0010  B'0011 
IOC3 to IOC0  B'0000, 
B'0100, 
B'1xxx 
B'0001 to 
B'0011, 
B'0101 to 
B'0111 
B'xx00 Other than 
B'xx00 
Other than B'xx00 
CCLR2 to 
CCLR0 
⎯  ⎯  ⎯  ⎯  Other than 
B'101 
B'101 
Output function  ⎯ Output compare 
output 
⎯ PWM*
4
 mode 
1 output 
PWM mode 
2 output 
⎯ 
Notes:  1.  TIOCC3-B input when MD3 to MD0 = B'0000 and IOC3 to IOC0 = B'10xx. 
 2. IRQ1-A input when the ITS1 bit in ITSR is 0. 
  3.  When used as the external clock input pin for the TMR, its pin function should be 
specified to the external clock input by the CKS2 to CKS0 bits in TCR_0 after the TMRS 
bit in PFCR3 is set to 1. 
  4.  TIOCD3-B output disabled. Output disabled and settings (2) effective when BFA = 1 or 
BFB = 1 in TMDR_3. 
  5.  NMOS open-drain output regardless of P51ODR. 
  6.  When using as PO2-B output, set PPGS in PFCR3 to 1 before other register setting. 
  7.  When using as TIOCC3-B input/output, set TPUS in PFCR3 to 1 before other register 
setting. 
  8.  When using as TMCI0-B input, set TMRS in PFCR3 to 1 before other register setting. 










