Rainbow-electronics ATmega128RFA1 Manuel d'utilisateur Page 237

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 524
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 236
237
8266A-MCU Wireless-12/09
ATmega128RFA1
Figure 17-9 shows the same timing data, but with the prescaler enabled.
Figure 17-9. Timer/Counter Timing Diagram with Prescaler (f
clk_I/O
/8)
TOVn
TCNTn
MAX - 1 MAX BOTTOM BOTTOM + 1
clk
I/O
clk
Tn
(clk
I/O
/8)
Figure 17-10 shows the setting of OCF0B and OCF0A in all modes except CTC and
PWM mode, where OCR0A is TOP.
Figure 17-10. Timer/Counter Timing Diagram, setting of OCF0x with Prescaler (f
clk_I/O
/8)
OCFnx
OCRnx
TCNTn
OCRnx Value
OCRnx - 1 OCRnx OCRnx + 1 OCRnx + 2
clk
I/O
clk
Tn
(clk
I/O
/8)
Figure 17-11 shows the setting of OCF0A and the clearing of TCNT0 in CTC mode and
fast PWM mode where OCR0A is TOP.
Figure 17-11. Timer/Counter Timing Diagram, Clear Timer on Compare Match mode
with Prescaler (f
clk_I/O
/8)
OCFnx
OCRnx
TCNTn
(CTC)
TOP
TOP - 1 TOP BOTTOM BOTTOM + 1
clk
I/O
clk
Tn
(clk
I/O
/8)
Vue de la page 236
1 2 ... 232 233 234 235 236 237 238 239 240 241 242 ... 523 524

Commentaires sur ces manuels

Pas de commentaire