Rev. 1.0, 09/03, page 252 of 568
TCNT
H'FF
Counter clear
TCORA
TCORB
H'00
TMO
Figure 11.2 Example of Pulse Output
11.5 Operation
Timing
11.5.1
TCNT Incrementation Timing
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 (
φ
) 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.
φ
Internal clock
TCNT input
clock
TCNT
N – 1
N
N + 1
Figure 11.3 Count Timing for Internal Clock Input
Содержание H8S/2627
Страница 22: ...Rev 1 0 09 02 page xx of xxxvi Index 565 ...
Страница 30: ...Rev 1 0 09 02 page xxviii of xxxiv ...
Страница 36: ...Rev 1 0 09 02 page xxxiv of xxxiv Table 23 9 Flash Memory Characteristics 561 ...
Страница 82: ...Rev 1 0 09 02 page 46 of 568 ...
Страница 88: ...Rev 1 0 09 02 page 52 of 568 ...
Страница 98: ...Rev 1 0 09 02 page 62 of 568 ...
Страница 156: ...Rev 1 0 09 02 page 120 of 568 ...
Страница 390: ...Rev 1 0 09 02 page 354 of 568 ...
Страница 480: ...Rev 1 0 09 02 page 444 of 568 ...
Страница 512: ...Rev 1 0 09 02 page 476 of 568 ...
Страница 527: ...Rev 1 0 09 02 page 491 of 568 21 8 5 Writing to MSTPCR MSTPCR should only be written to by the CPU ...
Страница 528: ...Rev 1 0 09 02 page 492 of 568 ...
Страница 580: ...Rev 1 0 09 02 page 544 of 568 ...