Datasheet
© 2011-2012 Microchip Technology Inc. Preliminary DS39997C-page 167
PIC24FJ16MC101/102 AND PIC24FJ32MC101/102/104
REGISTER 15-10: PxFLTBCON: FAULT B CONTROL REGISTER
(1,2,3,4)
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — FBOV3H FBOV3L FBOV2H FBOV2L FBOV1H FBOV1L
bit 15 bit 8
R/W-0 U-0 U-0 U-0 U-0 R/W-1 R/W-1 R/W-1
FLTBM
— — — — FBEN3 FBEN2 FBEN1
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-14 Unimplemented: Read as ‘0’
bit 13-8 FBOVxH<3:1>:FBOVxL<3:1>: Fault Input B PWM Override Value bits
1 = The PWM output pin is driven active on an external Fault input event
0 = The PWM output pin is driven inactive on an external Fault input event
bit 7 FLTBM: Fault B Mode bit
1 = The Fault B input pin functions in the Cycle-by-Cycle mode
0 = The Fault B input pin latches all control pins to the programmed states in PxFLTBCON<13:8>
bit 6-3 Unimplemented: Read as ‘0’
bit 2 FBEN3: Fault Input B Enable bit
1 = PWMxH3/PWMxL3 pin pair is controlled by Fault Input B
0 = PWMxH3/PWMxL3 pin pair is not controlled by Fault Input B
bit 1 FBEN2: Fault Input B Enable bit
1 = PWMxH2/PWMxL2 pin pair is controlled by Fault Input B
0 = PWMxH2/PWMxL2 pin pair is not controlled by Fault Input B
bit 0 FBEN1: Fault Input B Enable bit
1 = PWMxH1/PWMxL1 pin pair is controlled by Fault Input B
0 = PWMxH1/PWMxL1 pin pair is not controlled by Fault Input B
Note 1: On PIC24FJ16MC102 (28-pin) devices, the FLTA1 and FLTB1 pins are supported and do not require an
external pull-down resistor.
2: The PxFLTACON register is a write-protected register. Refer to Section 15.3 “Write-protected
Registers” for more information on the unlock sequence.
3: Comparator outputs are not internally connected to the PWM Fault control logic. If using the Comparator
modules for Fault generation, the user must externally connect the desired comparator output pin to the
dedicated FLTA1
or FLTB1 input pin.
4: During any reset event, the FLTB1
pin is enabled by default and must be cleared as described in
Section 15.2 “PWM Faults”.