PIC16F1847_13 Datasheet, PDF (200/440 Pages) Microchip Technology – 18/20/28-Pin Flash Microcontrollers with XLP Technology

PIC16(L)F1847
REGISTER 23-3: MDCARH: MODULATION HIGH CARRIER CONTROL REGISTER
R/W-x/u
R/W-x/u
R/W-x/u
U-0
MDCHODIS MDCHPOL MDCHSYNC
—
bit 7
R/W-x/u
R/W-x/u
R/W-x/u
MDCH<3:0>
R/W-x/u
bit 0
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
bit 7
bit 6
bit 5
bit 4
bit 3-0
MDCHODIS: Modulator High Carrier Output Disable bit
1 = Output signal driving the peripheral output pin (selected by MDCH<3:0>) is disabled
0 = Output signal driving the peripheral output pin (selected by MDCH<3:0>) is enabled
MDCHPOL: Modulator High Carrier Polarity Select bit
1 = Selected high carrier signal is inverted
0 = Selected high carrier signal is not inverted
MDCHSYNC: Modulator High Carrier Synchronization Enable bit
1 = Modulator waits for a falling edge on the high time carrier signal before allowing a switch to the
low time carrier
0 = Modulator Output is not synchronized to the high time carrier signal⁽¹⁾
Unimplemented: Read as ‘0’
MDCH<3:0> Modulator Data High Carrier Selection bits ⁽¹⁾
1111 = Reserved. No channel connected.
•
•
•
1000 = Reserved. No channel connected.
0111 = CCP4 output (PWM Output mode only)
0110 = CCP3 output (PWM Output mode only)
0101 = CCP2 output (PWM Output mode only)
0100 = CCP1 output (PWM Output mode only)
0011 = Reference Clock module signal
0010 = MDCIN2 port pin
0001 = MDCIN1 port pin
0000 = VSS
Note 1: Narrowed carrier pulse widths or spurs may occur in the signal stream if the carrier is not synchronized.
DS40001453D-page 200
Preliminary
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