Timer I/O Control Register 0 (Tior0) - Renesas H8 Series Hardware Manual

Section 12 Timer W
12.3.5

Timer I/O Control Register 0 (TIOR0)

TIOR0 selects the functions of GRA and GRB, and specifies the functions of the FTIOA and
FTIOB pins.
Bit Bit Name

7
6 IOB2
5 IOB1
4 IOB0

3
2 IOA2
Rev. 3.00 Sep. 14, 2006 Page 168 of 408
REJ09B0105-0300
Initial
Value R/W Description

1 Reserved
This bit is always read as 1.
0 R/W I/O Control B2
Selects the GRB function.
0: GRB functions as an output compare register
1: GRB functions as an input capture register
0 R/W I/O Control B1 and B0
0 R/W When IOB2 = 0,
00: No output at compare match
01: 0 output to the FTIOB pin at GRB compare match
10: 1 output to the FTIOB pin at GRB compare match
11: Output toggles to the FTIOB pin at GRB compare
When IOB2 = 1,
00: Input capture at rising edge at the FTIOB pin
01: Input capture at falling edge at the FTIOB pin
1X: Input capture at rising and falling edges of the FTIOB

1 Reserved
This bit is always read as 1.
0 R/W I/O Control A2
Selects the GRA function.
0: GRA functions as an output compare register
1: GRA functions as an input capture register
match
pin