PIC16F1938_13 Datasheet, PDF (215/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

PIC16(L)F1938/9
TABLE 23-9: EXAMPLE PIN ASSIGNMENTS FOR VARIOUS PWM ENHANCED MODES
ECCP Mode
PxM<1:0>
CCPx/PxA
PxB
PxC
PxD
Single
00
Yes⁽¹⁾
Half-Bridge
10
Yes
Full-Bridge, Forward
01
Yes
Full-Bridge, Reverse
11
Yes
Note 1: PWM Steering enables outputs in Single mode.
Yes⁽¹⁾
Yes
Yes
Yes
Yes⁽¹⁾
No
Yes
Yes
Yes⁽¹⁾
No
Yes
Yes
FIGURE 23-6:
PxM<1:0>
EXAMPLE PWM (ENHANCED MODE) OUTPUT RELATIONSHIPS (ACTIVE-HIGH
STATE)
Signal
0
Pulse
Width
Period
PRX+1
00 (Single Output)
10 (Half-Bridge)
PxA Modulated
PxA Modulated
PxB Modulated
Delay
Delay
PxA Active
(Full-Bridge,
01
Forward)
PxB Inactive
PxC Inactive
PxD Modulated
PxA Inactive
(Full-Bridge,
11
Reverse)
PxB Modulated
PxC Active
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>)
 2011-2013 Microchip Technology Inc.
DS40001574C-page 215