H8S20103 Datasheet, PDF (277/992 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family / H8S/Tiny Series

Section 9 Peripheral I/O Mapping Controller
(c) Port 5 Peripheral Function Mapping Register 3 (PMCR53)
Address: H'FF0052
Bit:
b7
b6
b5
b4
b3
b2
b1
b0

P55MD[2:0]

P54MD[2:0]
Value after reset:
0
1
0
0
0
1
0
0
Bit Symbol
Bit Name
Description
R/W
7

Reserved
This bit is always read as 0. The write value should 
always be 0.
6 to 4 P55MD[2:0] P55 function 000: Setting prohibited
R/W
select
001: IRQ5 input
010: SCK3_2 input/output (SCI3_2)
011: SCK3_3 input/output (SCI3_3)
100: SSCK input/output*³ (SSU) (initial value)
101: FTIOB1 input/output (timer RD_0)
110: TRDOI_1 !Unexpected End of
Formulainput/output (timer RD_1)*¹
111: Setting prohibited
3

Reserved
This bit is always read as 0. The write value should 
always be 0.
2 to 0 P54MD[2:0] P54 function 000: Setting prohibited
R/W
select
001: IRQ4 input
010: TRDOI_0 input (timer RD_0)
011: FTCI input (timer RC)*²
100: SSO input/output*³ (SSU) (initial value)
101: FTIOA1 input/output (timer RD_0)
110: TRAIO input/output (timer RA)
111: Setting prohibited
Notes: 1. This function cannot be selected for the H8S/20103 group.
2. The timer RC is not available on the H8S/20203 and H8S/20223 groups. These bits are
reserved and the function cannot be selected for these groups.
3. If the NMOS open-drain output is selected for the SSCK output pin or the SSO output
pin, use the PMC to allocate that pin from port 5
Rev. 1.00 Oct. 03, 2008 Page 251 of 962
REJ09B0465-0100