Datasheet

 2010-2012 Microchip Technology Inc. DS41413C-page 203
PIC12(L)F1822/PIC16(L)F1823
REGISTER 23-4: MDCARL: MODULATION LOW CARRIER CONTROL REGISTER
R/W-x/u R/W-x/u R/W-x/u U-0 R/W-x/u R/W-x/u R/W-x/u R/W-x/u
MDCLODIS MDCLPOL MDCLSYNC
— MDCL<3:0>
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
MDCLODIS: Modulator Low Carrier Output Disable bit
1 = Output signal driving the peripheral output pin (selected by MDCL<3:0> of the MDCARL register)
is disabled
0 = Output signal driving the peripheral output pin (selected by MDCL<3:0> of the MDCARL register)
is enabled
bit 6
MDCLPOL: Modulator Low Carrier Polarity Select bit
1 = Selected low carrier signal is inverted
0 = Selected low carrier signal is not inverted
bit 5
MDCLSYNC: Modulator Low Carrier Synchronization Enable bit
1 = Modulator waits for a falling edge on the low time carrier signal before allowing a switch to the high
time carrier
0 = Modulator Output is not synchronized to the low time carrier signal
(1)
bit 4 Unimplemented: Read as ‘0’
bit 3-0
MDCL<3:0> Modulator Data High Carrier Selection bits
(1)
1111 = Reserved. No channel connected.
•
•
•
0101 = Reserved. No channel connected.
0100 = CCP1 output (PWM Output mode only)
0011 = Reference Clock module signal
0010 = Reserved. No channel connected.
0001 = MDCIN1 port pin
0000 =V
SS
Note 1: Narrowed carrier pulse widths or spurs may occur in the signal stream if the carrier is not synchronized.