Datasheet
Section 10 I/O Ports 
R01UH0310EJ0500 Rev. 5.00    Page 669 of 1384 
Sep 25, 2012     
H8S/2426, H8S/2426R, H8S/2424 Group 
•  Modes 3 and 7 (EXPE = 0) 
Areas 2 to 5  ⎯ 
CS5E  ⎯ 
SSU settings  (1) in table below  (2) in table below  (3) in table below 
PF1DDR 0  1  0*
3
  ⎯ 
Pin function  PF1 input  PF1 output  SSCK0-C input*
1
*
4
SSCK0-C output*
2
Notes:  1.  When using as SSCK0-C input, set SSCK0S1 and SSCK0S0 in PFCR5 to B'10 before 
other register setting. 
  2.  When using as SSCK0-C output, set SSCK0S1 and SSCK0S0 in PFCR5 to B'10 before 
other register setting. 
  3.  PF1DDR = 0 when the SSU pin is used as input. 
  4.  Do not set up for SSU unless SSCK0S1 and SSCK0S0 = B'10 in PFCR5. 
Use as I/O port. 
  5.  Not supported in the 5-V version. 
SSU settings  (1)  (2)  (1) (3) (1) (2) (1) (3) 
SSUMS 0  1 
MSS 0 1 0 1 
SCKS  0 1 0 1 0 1 0 1 
Pin state  ⎯ SSCK 
input 
⎯ SSCK 
output 
⎯ SSCK 
input 
⎯ SSCK 
output 
[Legend] 
⎯:  Not used as the SSU pin (can be used as an I/O port). 
Note:  See tables 19.4 to 19.6. 










