476
11.6
Operation Timing
11.6.1
Input/Output Timing
TCNT Count Timing: Figure 11-34 shows TCNT count timing in internal clock operation, and
figure 11-35 shows TCNT count timing in external clock operation.
TCNT
TCNT
input clock
Internal clock
ø
N–1
N
N+1
N+2
Falling edge
Rising edge
Figure 11-34 Count Timing in Internal Clock Operation
TCNT
TCNT
input clock
External clock
ø
N–1
N
N+1
N+2
Rising edge
Falling edge
Falling edge
Figure 11-35 Count Timing in External Clock Operation