HD6473032F16 Datasheet, PDF (760/847 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Appendix B Internal I/O Register
TIOR2—Timer I/O Control Register 2
H'79
ITU2
Bit
Initial value
Read/Write
7
6
5
4
—
IOB2 IOB1 IOB0
1
0
0
0
—
R/W R/W R/W
Note: Bit functions are the same as for ITU0.
TIER2—Timer Interrupt Enable Register 2
3
2
1
0
—
IOA2 IOA1 IOA0
1
0
0
0
—
R/W
R/W
R/W
H'7A
ITU2
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
OVIE IMIEB IMIEA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
—
R/W
R/W R/W
Note: Bit functions are the same as for ITU0.
TSR2—Timer Status Register 2
H'7B
ITU2
Bit
7
6
5
4
3
2
1
0
—
—
—
—
—
OVF IMFB IMFA
Initial value
1
1
1
1
1
0
0
0
Read/Write
—
—
—
—
— R/(W)* R/(W)* R/(W)*
Note: * Only 0 can be written, to clear the flag.
The function is the same as ITU0.
Overflow flag
0 [Clearing condition]
Read OVF when OVF = 1, then write 0 in OVF.
1 [Setting condition]
The TCNT value overflows (from H'FFFF to H'0000)
or underflows (from H'0000 to H'FFFF)
Rev. 3.00 Mar 21, 2006 page 730 of 814
REJ09B0302-0300