Datasheet

PIC24F16KL402 FAMILY
DS30001037C-page 130  2011-2013 Microchip Technology Inc.
REGISTER 16-3: ECCP1AS: ECCP1 AUTO-SHUTDOWN CONTROL REGISTER
(1)
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ECCPASE ECCPAS2 ECCPAS1 ECCPAS0 PSSAC1 PSSAC0 PSSBD1 PSSBD0
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 15-8 Unimplemented: Read as ‘0’
bit 7 ECCPASE: ECCP1 Auto-Shutdown Event Status bit
1 = A shutdown event has occurred; ECCP outputs are in a shutdown state
0 = ECCP outputs are operating
bit 6-4 ECCPAS<2:0>: ECCP1 Auto-Shutdown Source Select bits
111 =V
IL on FLT0 pin, or either C1OUT or C2OUT is high
110 =V
IL on FLT0 pin or C2OUT comparator output is high
101 =V
IL on FLT0 pin or C1OUT comparator output is high
100 =V
IL on FLT0 pin
011 = Either C1OUT or C2OUT is high
010 = C2OUT comparator output is high
001 = C1OUT comparator output is high
000 = Auto-shutdown is disabled
bit 3-2 PSSAC<1:0>: P1A and P1C Pins Shutdown State Control bits
1x = P1A and P1C pins tri-state
01 = Drive pins, P1A and P1C, to ‘1’
00 = Drive pins, P1A and P1C, to ‘0’
bit 1-0 PSSBD<1:0>: P1B and P1D Pins Shutdown State Control bits
1x = P1B and P1D pins tri-state
01 = Drive pins, P1B and P1D, to ‘1’
00 = Drive pins, P1B and P1D, to ‘0’
Note 1: This register is implemented only on PIC24FXXKL40X/30X devices.
Note 1: The auto-shutdown condition is a level-based signal, not an edge-based signal. As long as the level is
present, the auto-shutdown will persist.
2: Writing to the ECCPASE bit is disabled while an auto-shutdown condition persists.
3: Once the auto-shutdown condition has been removed and the PWM restarted (either through firmware or
auto-restart), the PWM signal will always restart at the beginning of the next PWM period.