Operation Timing; Input/Output Timing; Figure 12.33 Count Timing In Internal Clock Operation; Figure 12.34 Count Timing In External Clock Operation - Renesas H8S/2437 Hardware Manual

12.7

Operation Timing

12.7.1

Input/Output Timing

TCNT Count Timing:
Figure 12.33 shows TCNT count timing in internal clock operation, and figure 12.34 shows TCNT
count timing in external clock operation.
φ
Internal clock
TCNT
input clock
TCNT

Figure 12.33 Count Timing in Internal Clock Operation

φ
External clock
TCNT
input clock
TCNT

Figure 12.34 Count Timing in External Clock Operation

Rev. 1.00, 09/03, page 350 of 704
Falling edge
N-1 N
Falling edge
N-1 N
Rising edge
N+1
Rising edge Falling edge
N+1
N+2
N+2