h8s-2110b Renesas Electronics Corporation., h8s-2110b Datasheet - Page 231

• Manufacturer Part Number: h8s-2110b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

10.5
10.5.1
Figure 10.4 shows the TCNT count timing with an internal clock source. Figure 10.5 shows the
TCNT count timing with an external clock source. The pulse width of the external clock signal
must be at least 1.5 system clocks ( ) for a single edge and at least 2.5 system clocks ( ) for 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
TCNT Count Timing
Operation Timing
Figure 10.5 Count Timing for External Clock Input (Both Edges)
Figure 10.4 Count Timing for Internal Clock Input
N – 1
N – 1
N
N
Rev. 2.00 Mar 21, 2006 page 193 of 518
Section 10 8-Bit Timer (TMR)
REJ09B0299-0200
N + 1
N + 1