HD64336900G Datasheet, PDF (188/408 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

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.
Initial
Bit
Bit Name Value R/W Description
7

1

Reserved
This bit is always read as 1.
6
IOB2
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
5
IOB1
0
R/W I/O Control B1 and B0
4
IOB0
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
match
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
pin
3

1

Reserved
This bit is always read as 1.
2
IOA2
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
Rev. 1.00, 11/03, page 160 of 376