Rev. 3.0, 10/02, page 335 of 686
11.5
Operation Timing
11.5.1
TCNT Incrementation Timing
Figure 11.3 shows the count timing for internal clock input. Figure 11.4 shows the count timing
for external clock signal. 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.
ø
Internal clock
Clock input
to TCNT
TCNT
N–1
N
N+1
Figure 11.3 Count Timing for Internal Clock Input
ø
External clock
input
Clock input
to TCNT
TCNT
N–1
N
N+1
Figure 11.4 Count Timing for External Clock Input
Summary of Contents for H8S/2215 Series
Page 4: ...Rev 3 0 10 02 page iv of lviii ...
Page 6: ...Rev 3 0 10 02 page vi of lviii ...
Page 28: ...Rev 3 0 10 02 page xxviii of lviii ...
Page 122: ...Rev 3 0 10 02 page 64 of 686 ...
Page 132: ...Rev 3 0 10 02 page 74 of 686 ...
Page 156: ...Rev 3 0 10 02 page 98 of 686 ...
Page 198: ...Rev 3 0 10 02 page 140 of 686 ...
Page 320: ...Rev 3 0 10 02 page 262 of 686 ...
Page 384: ...Rev 3 0 10 02 page 326 of 686 ...
Page 474: ...Rev 3 0 10 02 page 416 of 686 ...
Page 608: ...Rev 3 0 10 02 page 550 of 686 ...
Page 614: ...Rev 3 0 10 02 page 556 of 686 ...
Page 650: ...Rev 3 0 10 02 page 592 of 686 ...
Page 652: ...Rev 3 0 10 02 page 594 of 686 ...
Page 680: ...Rev 3 0 10 02 page 622 of 686 ...
Page 732: ...Rev 3 0 10 02 page 674 of 686 ...
Page 740: ...Rev 3 0 10 02 page 682 of 686 ...