70291E Datasheet, PDF (226/436 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
REGISTER 17-2: DFLTxCON: DIGITAL FILTER CONTROL REGISTER
U-0
—
bit 15
U-0
U-0
U-0
U-0
R/W-0
R/W-0
—
—
—
—
IMV<2:0>
R/W-0
CEID
bit 8
R/W-0
QEOUT
bit 7
R/W-0
QECK<2:0>
U-0
U-0
U-0
U-0
—
—
—
—
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-11
bit 10-9
bit 8
bit 7
bit 6-4
bit 3-0
Unimplemented: Read as ‘0’
IMV<1:0>: Index Match Value bits – These bits allow the user application to specify the state of the
QEAx and QEBx input pins during an Index pulse when the POSxCNT register is to be reset.
In x4 Quadrature Count Mode:
IMV1 = Required State of Phase B input signal for match on index pulse
IMV0 = Required State of Phase A input signal for match on index pulse
In x4 Quadrature Count Mode:
IMV1 = Selects Phase input signal for Index state match (0 = Phase A, 1 = Phase B)
IMV0 = Required state of the selected Phase input signal for match on index pulse
CEID: Count Error Interrupt Disable bit
1 = Interrupts due to count errors are disabled
0 = Interrupts due to count errors are enabled
QEOUT: QEAx/QEBx/INDXx Pin Digital Filter Output Enable bit
1 = Digital filter outputs enabled
0 = Digital filter outputs disabled (normal pin operation)
QECK<2:0>: QEAx/QEBx/INDXx Digital Filter Clock Divide Select Bits
111 = 1:256 Clock Divide
110 = 1:128 Clock Divide
101 = 1:64 Clock Divide
100 = 1:32 Clock Divide
011 = 1:16 Clock Divide
010 = 1:4 Clock Divide
001 = 1:2 Clock Divide
000 = 1:1 Clock Divide
Unimplemented: Read as ‘0’
DS70291E-page 226
© 2011 Microchip Technology Inc.