Renesas H8SX series, Hardware Manual, Page: 281 / 846

Section 8 I/O Ports
Rev. 3.00 Mar. 14, 2006 Page 243 of 804
REJ09B0104-0300
8.3 Port Function Controller
The port function controller controls the I/O ports.
The port function controller incorporates the following registers.
•
Port function control register 9 (PFCR9)*
•
Port function control register A (PFCRA)
•
Port function control register B (PFCRB)
Note: * PFCR9 is supported only by the H8SX/1527.
8.3.1 Port Function Control Register 9 (PFCR9)
PFCR9 selects the multiple functions for the TPU (unit 0) I/O pins.
7
-
0
R/W
6
-
0
R/W
5
TPUMS3A
0
R/W
4
TPUMS3B
0
R/W
3
TPUMS2
0
R/W
0
TPUMS0B
0
R/W
2
TPUMS1
0
R/W
1
TPUMS0A
0
R/W
Bit
Bit Name
Initial Value
R/W
Bit Bit Name
Initial
Value R/W Description
7, 6

All 0 R/W Reserved
These bits are always read as 0. The write value should
always be 0.
5 TPUMS3A 0 R/W TPU I/O Pin Multiplex Function Select
Selects TIOCA3 function
0: Specifies P21 as output compare output and input
capture
1: Specifies P20 as input capture input and P21 as output
compare
4 TPUMS3B 0 R/W TPU I/O Pin Multiplex Function Select
Selects TIOCC3 function
0: Specifies P22 as output compare output and input
capture
1: Specifies P23 as input capture input and P22 as output
compare
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