h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 303

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

11.5
11.5.1
Figure 11.3 shows the TCNT count timing with internal clock source. Figure 11.4 shows the
TCNT incrementation timing with external clock source. The pulse width of the external clock for
incrementation at signal edge must be at least 1.5 system clock ( ) periods, and at least 2.5 states
for incrementation at both edges. The counter will not increment correctly if the pulse width is less
than these values.
Internal clock
TCNT input
clock
TCNT
External clock
input pin
TCNT input
clock
TCNT
Operation Timing
TCNT Incrementation Timing
Figure 11.4 Count Timing for External Clock Input
Figure 11.3 Count Timing for Internal Clock Input
N – 1
N – 1
N
N
Rev. 3.00 Oct 04, 2005 page 263 of 598
Section 11 8-Bit Timers
REJ09B0155-0300
N + 1
N + 1