Datasheet
Section 9 Peripheral I/O Mapping Controller 
Page 238 of 982    REJ09B0465-0300 Rev. 3.00 
 Sep 17, 2010 
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
Table 9.2  Multiplexed Pin Functions (Ports 8, 9, and A) 
Group 2 
Pin 
Name  Function 1  Function 2 Function 3  Function 4  Function 5*
2
 Function 6
Pm7  IRQ7 input  ⎯  TXD output TREO 
output 
FTIOD3 
input/output 
TXD_3 
output 
Pm6  IRQ6 input  ⎯  RXD input  TRBO 
output 
FTIOC3 
input/output 
RXD_3 
input 
Pm5  IRQ5 input  ⎯ SCK3 
input/output 
TRAIO 
input/output 
FTIOB3 
input/output 
SCK3_3 
input/output
Pm4  IRQ4 input  ⎯  ⎯ TRGB input FTIOA3 
input/output 
⎯ 
Pm3  IRQ3 input  ⎯  ⎯ TRAO output FTIOD2 
input/output 
⎯ 
Pm2  IRQ2 input  ⎯  ⎯  ⎯ FTIOC2 
input/output 
⎯ 
Pm1  IRQ1 input  ⎯  ⎯  ⎯ FTIOB2 
input/output 
⎯ 
Port 8 
Port 9 
Port A*
1
Pm0  IRQ0 input  ⎯  ⎯  ⎯ FTIOA2 
input/output 
⎯ 
Initially mapped 
port 
None  None  None  Port 8  Port 9  None 
[Legend]  n = 8, 9, and A 
⎯: Reserved 
Notes:  1.  Port A is multiplexed with A/D converter analog input in the H8S/20223 and H8S/20235 
Groups. Therefore, the multiplexed functions cannot be selected for the port. 
The PA3 to PA0 pins are multiplexed with A/D converter analog input in the H8S/20203 
and H8S/20215 Groups. Therefore, the multiplexed functions cannot be selected for the 
port pins. 
  2.  Function 5 cannot be selected for the H8S/20103 and H8S/20115 Groups. 










