Datasheet

Section 9 Peripheral I/O Mapping Controller
REJ09B0465-0300 Rev. 3.00 Page 249 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
(3) Port 3
(a) Port 3 Peripheral Function Mapping Register 1 (PMCR31)
b7
⎯
0
b6
0
b5
P31MD[2:0]
1
b4
1
b3
⎯
0
b2
0
b1
P30MD[2:0]
1
b0
1
H'FF0048
Bit:
Address:
Value after reset:
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 P31MD[2:0] P31 function
select
000: Setting prohibited
001: IRQ1 input
010: RXD input (SCI3_1)
011: FTIOB input/output (timer RC)* (initial value)
100: TCLKB input (timer RG)
101: FTIOB0 input/output (timer RD_0)
110: TRGB input (timer RB)
111: Setting prohibited
R/W
3 ⎯ Reserved This bit is always read as 0. The write value should
always be 0.
⎯
2 to 0 P30MD[2:0] P30 function
select
000: Setting prohibited
001: IRQ0 input
010: SCK3 input/output (SCI3_1)
011: FTIOA input/output (timer RC)* (initial value)
100: TCLKA input (timer RG)
101: FTIOA0 input/output (timer RD_0)
110: TREO output (timer RE)
111: Setting prohibited
R/W
Note: * The timer RC is not available on the H8S/20203, H8S/20223, H8S/20215, and
H8S/20235 Groups. No function is selected in the initial state for these groups.