Datasheet

PIC16(L)F1938/9
DS40001574C-page 176  2011-2013 Microchip Technology Inc.
REGISTER 18-2: CMxCON1: COMPARATOR Cx CONTROL REGISTER 1
R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 U-0 U-0 R/W-0/0 R/W-0/0
CxINTP CxINTN CxPCH<1:0>
— —
CxNCH<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
CxINTP: Comparator Interrupt on Positive Going Edge Enable bits
1 = The CxIF interrupt flag will be set upon a positive going edge of the CxOUT bit
0 = No interrupt flag will be set on a positive going edge of the CxOUT bit
bit 6
CxINTN: Comparator Interrupt on Negative Going Edge Enable bits
1 = The CxIF interrupt flag will be set upon a negative going edge of the CxOUT bit
0 = No interrupt flag will be set on a negative going edge of the CxOUT bit
bit 5-4
CxPCH<1:0>: Comparator Positive Input Channel Select bits
11 = CxVP connects to V
SS
10 = CxVP connects to FVR Voltage Reference
01 = CxVP connects to DAC Voltage Reference
00 = CxVP connects to CxIN+ pin
bit 3-2
Unimplemented: Read as ‘0’
bit 1-0
CxNCH<1:0>: Comparator Negative Input Channel Select bits
11 = CxVN connects to C12IN3- pin
10 = CxVN connects to C12IN2- pin
01 = CxVN connects to C12IN1- pin
00 = CxVN connects to C12IN0- pin
REGISTER 18-3: CMOUT: COMPARATOR OUTPUT REGISTER
U-0 U-0 U-0 U-0 U-0 U-0 R-0/0 R-0/0
— — — — — —
MC2OUT MC1OUT
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 7-2
Unimplemented: Read as ‘0’
bit 1
MC2OUT: Mirror Copy of C2OUT bit
bit 0
MC1OUT: Mirror Copy of C1OUT bit