Datasheet

Table Of Contents
Section 14 16-Bit Timer Pulse Unit (TPU)
Rev. 2.00 Jul. 04, 2007 Page 306 of 692
REJ09B0309-0200
14.7 Operation Timing
14.7.1 Input/Output Timing
(1) TCNT Count Timing
Figure 14.21 shows TCNT count timing in internal clock operation, and figure 14.22 shows TCNT
count timing in external clock operation.
TCNT
TCNT
input clock
Internal clock
φ
N-1 N N+1 N+2
Falling edge Rising edge
Figure 14.21 Count Timing in Internal Clock Operation
TCNT
TCNT
input clock
External clock
φ
N-1 N N+1 N+2
Falling edge Rising edge Falling edge
Figure 14.22 Count Timing in External Clock Operation