Microchip Technology MA160014 Data Sheet
2010-2012 Microchip Technology Inc.
DS41412F-page 209
PIC18(L)F2X/4XK22
REGISTER 14-5:
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
CCPxASE
CCPxAS<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
CCPxASE: CCPx Auto-shutdown Event Status bit
if PxRSEN = 1;
1
if PxRSEN = 1;
1
= An Auto-shutdown event occurred; CCPxASE bit will automatically clear when event goes away;
CCPx outputs in shutdown state
0
= CCPx outputs are operating
if PxRSEN = 0;
1
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
CCPxAS<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.
Timer1.