Hitachi H8/3048 Hardware Manual page 784

TIOR2—Timer I/O Control Register 2
www.DataSheet4U.com
Bit
Initial value
Read/Write
Note: Bit functions are the same as for ITU0.
TIER2—Timer Interrupt Enable Register 2
Bit
Initial value
Read/Write
Note: Bit functions are the same as for ITU0.
TSR2—Timer Status Register 2
Bit 7
—
Initial value 1
Read/Write —
Note: Only 0 can be written, to clear the flag. *
Bit functions are the same as for ITU0.
7 6 5
— IOB2 IOB1
1 0 0
— R/W R/W
7 6 5
— — —
1 1 1
— — —
6 5
— —
1 1
— —
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)
H'79
4 3 2
IOB0 — IOA2
0 1 0
R/W — R/W
H'7A
4 3 2
— — OVIE
1 1 0
— — R/W
H'7B
4 3 2
— — OVF
1 1 0
— — R/(W)
*
The function is the same as ITU0.
777
ITU2
1 0
IOA1 IOA0
0 0
R/W R/W
ITU2
1 0
IMIEB IMIEA
0 0
R/W R/W
ITU2
1 0
IMFB IMFA
0 0
R/(W) R/(W)
* *