Datasheet
Section 10 I/O Ports 
Page 672 of 1384    R01UH0310EJ0500 Rev. 5.00 
 Sep 25, 2012 
H8S/2426, H8S/2426R, H8S/2424 Group
•  PF0/WAIT-A/ADTRG0-B/SCS0-C/OE-A*
8
 (H8S/2424 Group) 
The pin function is switched as shown below according to the combination of the operating 
mode, bit EXPE, bit WAITE in BCR of the bus controller, bit OEE in DRAMCR*
8
, bits MSS, 
CSS1, and CSS0 in SSCRH and bit SSUMS in SSCRL of the SSU, bits TRGS1, TRGS0, and 
EXTRGS in ADCR_0 of the ADC, bit OES in PFCR2, bits ADTRG0S and WAITS in PFCR4, 
bits SCS0S1 and SCS0S0 in PFCR5, and bit PF0DDR. 
•  Modes 1, 2, and 4 Modes 3 and 7 (EXPE = 1) 
OEE 0 
RMTS2 to 
RMTS0 
⎯ 
WAITE 0  1 
WAITS  ⎯ 0 1 
SSU settings  (1) in table below  (2) in 
table 
below 
(4) in 
table 
below 
(3) in 
table 
below 
⎯ (1) in 
table 
below 
⎯ (2) in 
table 
below 
(3) (4) in 
table 
below 
PF0DDR 0 1 0*
8
 0*
8
  ⎯  ⎯ 0  1 0*
8
 0 
PF0 input PF0 
output 
SCS0-C 
input*
3
*
7
SCS0-C 
I/O*
5
*
7
SCS0-C 
output*
4
*
7
WAIT-A 
input 
PF0 input Setting 
prohibited 
SCS0-C 
input*
4
Setting 
prohibited
Pin function 
ADTRG0-B input*
2
OEE  1 
RMTS2 to 
RMTS0 
Settings other than that for areas 2 to 5 as DRAM  Areas 2 to 
5 are 
DRAM 
space 
WAITE 0  1 ⎯ 
WAITS  ⎯ 0 1 ⎯ 
SSU settings  (1) in table below  (2) in 
table 
below 
(4) in 
table 
below 
(3) in 
table 
below 
⎯ (1) in 
table 
below 
⎯ (2) in 
table 
below 
(3) (4) in 
table 
below 
⎯ 
PF0DDR 0 1 0*
8
 0*
8
  ⎯  ⎯ 0  1 0*
8
 0  ⎯ 
PF0 input  PF0 
output 
SCS0-C 
input*
3
*
7
SCS0-C 
I/O*
5
*
7
SCS0-C 
output*
4
*
7
WAIT-A 
input 
PF0 input Setting 
prohibited
SCS0-C 
input*
3
*
7
Setting 
prohibited 
OE-A 
output*
1
*
8
Pin function 
ADTRG0-B input*
2










