R5S72611 RENESAS [Renesas Technology Corp], R5S72611 Datasheet - Page 647

• Manufacturer Part Number: R5S72611
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

13.5
13.5.1
Figure 13.4 shows the TCNT count timing for internal clock input. Figure 13.5 shows the TCNT
count timing for external clock input. Note that the external clock pulse width must be at least 1.5
states for incrementation at a single edge, 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.
Figure 13.5 Count Timing for External Clock Input at Falling and Rising Edges
Pφ
Internal clock
TCNT input
clock
TCNT
Pφ
External clock
input pin
TCNT input
clock
TCNT
Operation Timing
TCNT Count Timing
Figure 13.4 Count Timing for Internal Clock Input at Falling Edge
N – 1
N – 1
N
N
Rev. 2.00 Sep. 07, 2007 Page 615 of 1312
Section 13 8-Bit Timers (TMR)
N + 1
N + 1
REJ09B0320-0200