PIC16F/LF1946/47
FIGURE 22-7:
EXAMPLE ENHANCED PWM OUTPUT RELATIONSHIPS (ACTIVE-LOW STATE)
PRx+1
Pulse
Width
0
Signal
PxM<1:0>
Period
PxA Modulated
PxA Modulated
PxB Modulated
PxA Active
(Single Output)
00
10
Delay
Delay
(Half-Bridge)
(Full-Bridge,
Forward)
PxB Inactive
PxC Inactive
PxD Modulated
PxA Inactive
PxB Modulated
PxC Active
01
(Full-Bridge,
Reverse)
11
PxD Inactive
Relationships:
•
•
•
Period = 4 * TOSC * (PRx + 1) * (TMRx Prescale Value)
Pulse Width = TOSC * (CCPRxL<7:0>:CCPxCON<5:4>) * (TMRx Prescale Value)
Delay = 4 * TOSC * (PWMxCON<6:0>)
DS41414A-page 218
Preliminary
2010 Microchip Technology Inc.