Datasheet

PIC18(L)F2X/45K50
DS30684A-page 210  2012 Microchip Technology Inc.
REGISTER 15-4: ECCPxAS: CCPX 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 ECCPxAS<2:0> PSSxAC<1:0> PSSxBD<1:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets
‘1’ = Bit is set ‘0’ = Bit is cleared
bit 7 ECCPxASE: CCPx Auto-shutdown Event Status bit
if PxRSEN = 1;
1 = An Auto-shutdown event occurred; ECCPxASE bit will automatically clear when event goes away;
CCPx outputs in shutdown state
0 = CCPx outputs are operating
if PxRSEN = 0;
1 = An Auto-shutdown event occurred; bit must be cleared in software to restart PWM;
CCPx outputs in shutdown state
0 = CCPx outputs are operating
bit 6-4 ECCPxAS<2:0>: CCPx Auto-Shutdown Source Select bits
(1)
000 = Auto-shutdown is disabled
001 = Comparator C1 (async_C1OUT) – output high will cause shutdown event
010 = Comparator C2 (async_C2OUT) – output high will cause shutdown event
011 = Either Comparator C1 or C2 – output high will cause shutdown event
100 =FLT0 pin - low level will cause shutdown event
101 =FLT0
pin or Comparator C1 (async_C1OUT) – low level will cause shutdown event
110 =FLT0
pin or Comparator C2 (async_C2OUT) – low level will cause shutdown event
111 =FLT0
pin or Comparators C1 or C2 – low level will cause shutdown event
bit 3-2 PSSxAC<1:0>: Pins PxA and PxC Shutdown State Control bits
00 = Drive pins PxA and PxC to ‘0’
01 = Drive pins PxA and PxC to ‘1’
1x = Pins PxA and PxC tri-state
bit 1-0 PSSxBD<1:0>: Pins PxB and PxD Shutdown State Control bits
00 = Drive pins PxB and PxD to ‘0’
01 = Drive pins PxB and PxD to ‘1’
1x = Pins PxB and PxD tri-state
Note 1: If C1SYNC or C2SYNC bits in the CM2CON1 register are enabled, the shutdown will be delayed by
Timer1.