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Bits 6 to 4—I/O Control D2 to D0 (IOD2 to IOD0): These bits select the GRD function.
Bit 6:
Bit 5:
IOD2
IOD1
0
0
1
1
0
1
Notes: 1. After a reset, the output conforms to the TOD setting in TCRW until the first compare
match.
2. Don't care
Bit 3—Reserved: This bit cannot be modified and is always read as 1.
Bits 2 to 0—I/O Control C2 to C0 (IOC2 to IOC0): These bits select the GRC function.
Bit 2:
Bit 1:
IOC2
IOC1
0
0
1
1
0
1
Notes: 1. After a reset, the output conforms to the TOC setting in TCRW until the first compare
match.
2. Don't care
Bit 4:
IOD0
Function
0
GRD is an output
compare register
1
0
1
0
GRD is an input
capture register
1
2
*
2
*
Bit 0:
IOC0
Function
0
GRC is an output
compare register
1
0
1
0
GRC is an input
capture register
1
2
*
2
*
No output at compare match
0 output at GRD compare match*
1 output at GRD compare match*
Output toggles at GRD compare match*
Input capture at rising edge
Input capture at falling edge
Input capture at both edges
No output at compare match
0 output at GRC compare match*
1 output at GRC compare match*
Output toggles at GRC compare match*
Input capture at rising edge
Input capture at falling edge
Input capture at both edges
(Initial value)
1
1
1
(Initial value)
1
1
1
205
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