Datasheet

344
Phase Count Mode 2: Figure 12.31 shows an example of phase counting mode 2 operation. Table
12.10 lists the up counting and down counting conditions for the TCNT.
TCLKA (Channel 1)
TCLKC (Channel 2)
TCLKB (Channel 1)
TCLKD (Channel 2)
TCNT value
Increment Decrement
Time
Figure 12.31 Phase Counting Mode 2 Operation
Table 12.10 Phase Count Mode 2 Up/Down Counting Conditions
TCLKA (Channel 1)
TCLKC (Channel 2)
TCLKB (Channel 1)
TCLKD (Channel 2) Operation
1 (high level) Rising edge Does not count (don’t care)
0 (low level) Falling edge Does not count (don’t care)
Rising edge 0 (low level) Does not count (don’t care)
Falling edge 1 (high level) Increment
1 (high level) Falling edge Does not count (don’t care)
0 (low level) Rising edge Does not count (don’t care)
Rising edge 1 (high level) Does not count (don’t care)
Falling edge 0 (low level) Decrement