h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 358

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 12 8-Bit Timer (TMR)
12.5.4
TCNT is cleared when compare-match A or compare-match B occurs, depending on the setting of
the CCLR1 and CCLR0 bits in TCR. Figure 12.8 shows the timing of clearing the counter by a
compare-match.
12.5.5
TCNT is cleared at the rising edge of an external reset input, depending on the settings of the
CCLR1 and CCLR0 bits in TCR. The width of the clearing pulse must be at least 1.5 states. Figure
12.9 shows the timing of clearing the counter by an external reset input.
Rev. 3.00 Mar 21, 2006 page 304 of 788
REJ09B0300-0300
Timing of Counter Clear at Compare-Match
TCNT External Reset Timing
Compare-match
signal
TCNT
External reset
input pin
Clear signal
TCNT
Figure 12.9 Timing of Counter Clear by External Reset Input
Figure 12.8 Timing of Counter Clear by Compare-Match
N – 1
N
N
H'00
H'00