588
TIOR0—Timer I/O Control Register 0
H'65
ITU0
Bit
Initial value
Read/Write
7
—
1
—
6
IOB2
0
R/W
5
IOB1
0
R/W
4
IOB0
0
R/W
3
—
1
—
0
IOA0
0
R/W
2
IOA2
0
R/W
1
IOA1
0
R/W
I/O control A2 to A0
IOA2
1
GRA Function
GRA is an output
compare register
GRA is an input
capture register
IOA1
0
1
0
1
Bit 1
IOA0
0
1
0
1
0
1
Bit 0
0
1
0
Bit 2
No output at compare match
0 output at GRA compare match
1 output at GRA compare match
Output toggles at GRA compare match
GRA captures rising edge of input
GRA captures falling edge of input
GRA captures both edges of input
I/O control B2 to B0
IOB2
1
GRB Function
GRB is an output
compare register
GRB is an input
capture register
IOB1
0
1
0
1
Bit 5
IOB0
0
1
0
1
0
1
Bit 4
0
1
0
Bit 6
No output at compare match
0 output at GRB compare match
1 output at GRB compare match
Output toggles at GRB compare match
GRB captures rising edge of input
GRB captures falling edge of input
GRB captures both edges of input