PIC12F1840 MICROCHIP [Microchip Technology], PIC12F1840 Datasheet - Page 187

• Manufacturer Part Number: PIC12F1840
• Description: 8-Pin Flash Microcontrollers with nanoWatt XLP Technology
• Manufacturer: MICROCHIP [Microchip Technology]

REGISTER 23-4:
TABLE 23-1:
 2011 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
u = Bit is unchanged
‘1’ = Bit is set
bit 7
bit 6
bit 5
bit 4
bit 3-0
Note 1:
Name
MDCARH
MDCARL
MDCON
MDSRC
Legend:
MDCLODIS
R/W-x/u
Narrowed carrier pulse widths or spurs may occur in the signal stream if the carrier is not synchronized.
MDMSODIS
— = unimplemented, read as ‘0’. Shaded cells are not used in the Data Signal Modulator mode.
MDCHODIS
MDCLODIS
MDEN
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)
0 = Output signal driving the peripheral output pin (selected by MDCL<3:0> of the MDCARL register)
MDCLPOL: Modulator Low Carrier Polarity Select bit
1 = Selected low carrier signal is inverted
0 = Selected low carrier signal is not inverted
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
0 = Modulator Output is not synchronized to the low time carrier signal
Unimplemented: Read as ‘0’
MDCL<3:0> Modulator Data High Carrier Selection bits
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
MDCLPOL
SUMMARY OF REGISTERS ASSOCIATED WITH DATA SIGNAL MODULATOR MODE
R/W-x/u
is disabled
is enabled
time carrier
•
•
•
MDCARL: MODULATION LOW CARRIER CONTROL REGISTER
MDCHPOL
MDCLPOL
SS
MDOE
Bit 6
—
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
MDCLSYNC
R/W-x/u
MDCHSYNC
MDCLSYNC
MDSLR
Bit 5
—
U-0
Preliminary
—
MDOPOL
Bit 4
—
—
—
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
R/W-x/u
MDOUT
Bit 3
(1)
Bit 2
R/W-x/u
—
PIC12F/LF1840
MDCH<3:0>
MDMS<3:0>
MDCL<3:0>
MDCL<3:0>
(1)
Bit 1
—
R/W-x/u
MDBIT
DS41441A-page 187
Bit 0
R/W-x/u
Register
on Page
186
187
184
185
bit 0