Datasheet

158
7734Q–AVR–02/12
AT90PWM81/161
As the period of the cycle decreases, the instantaneous frequency of the two outputs increases.
Figure 13-11. PSCOUTr1 retriggered by PSCr Input B (edge retriggering).
Note: This example is given in “Input Mode 8” in “2 or 4 ramp mode”. See Figure 13-26 on page 166 for
details.
Figure 13-12. PSCOUTr1 retriggered by PSCr Input B (level acting).
Note: This example is given in “Input Mode 1” in “2 or 4 ramp mode”. See Figure 13-15 on page 161 for
details.
13.8.3.1 Burst Generation
Note: On level mode, it’s possible to use PSCR to generate burst by using Input Mode 3 or Mode 4 (see
Figure 13-19 on page 163 and Figure 13-20 on page 163 for details.)
On-Time 0 On-Time 1
PSCOUTn0
PSCOUTn1
Dead-Time 1 Dead-Time 0
PSCn Input B
Dead-Time 0
(falling edge)
PSCn Input B
(rising edge)
On-Time 0 On-Time 1
PSCOUTn0
PSCOUTn1
Dead-Time 1 Dead-Time 0
PSCn Input B
Dead-Time 0
(high level)
PSCn Input B
(low level)