Datasheet

PIC18F87J11 FAMILY
DS39778E-page 232  2007-2012 Microchip Technology Inc.
REGISTER 19-2: ECCPxDEL: ECCPx PWM DELAY REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
PxRSEN PxDC6 PxDC5 PxDC4 PxDC3 PxDC2 PxDC1 PxDC0
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 7 PxRSEN: PWM Restart Enable bit
1 = Upon auto-shutdown, the ECCPxASE bit clears automatically once the shutdown event goes
away; the PWM restarts automatically
0 = Upon auto-shutdown, ECCPxASE must be cleared in software to restart the PWM
bit 6-0 PxDC<6:0>: PWM Delay Count bits
Delay time, in number of F
OSC/4 (4 * TOSC) cycles, between the scheduled and actual time for a PWM
signal to transition to active.
REGISTER 19-3: ECCPxAS: ECCPx AUTO-SHUTDOWN CONTROL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
ECCPxASE ECCPxAS2 ECCPxAS1 ECCPxAS0 PSSxAC1 PSSxAC0 PSSxBD1 PSSxBD0
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 7 ECCPxASE: ECCPx Auto-Shutdown Event Status bit
0 = ECCPx outputs are operating
1 = A shutdown event has occurred; ECCPx outputs are in shutdown state
bit 6-4 ECCPxAS<2:0>: ECCPx Auto-Shutdown Source Select bits
000 = Auto-shutdown is disabled
001 = Comparator 1 output
010 = Comparator 2 output
011 = Either Comparator 1 or 2
100 =FLT0
101 = FLT0 or Comparator 1
110 = FLT0 or Comparator 2
111 = FLT0 or Comparator 1 or Comparator 2
bit 3-2 PSSxAC<1:0>: Pins A and C Shutdown State Control bits
00 = Drive Pins A and C to ‘0’
01 = Drive Pins A and C to ‘1’
1x = Pins A and C tri-state
bit 1-0 PSSxBD<1:0>: Pins B and D Shutdown State Control bits
00 = Drive Pins B and D to ‘0’
01 = Drive Pins B and D to ‘1’
1x = Pins B and D tri-state