Datasheet
© 2008-2012 Microchip Technology Inc. DS70318F-page 211
dsPIC33FJ06GS101/X02 and dsPIC33FJ16GSX02/X04
REGISTER 15-15: FCLCONx: PWMx FAULT CURRENT-LIMIT CONTROL REGISTER
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
IFLTMOD CLSRC<4:0>
(2,3)
CLPOL
(1)
CLMOD
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
FLTSRC<4:0>
(2,3)
FLTPOL
(1)
FLTMOD<1:0>
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15 IFLTMOD: Independent Fault Mode Enable bit
1 = Independent Fault mode: Current-limit input maps FLTDAT<1> to PWMxH output and Fault input
maps FLTDAT<0> to PWMxL output. The CLDAT<1:0> bits are not used for override functions.
0 = Normal Fault mode: Current-limit feature maps CLDAT<1:0> bits to the PWMxH and PWMxL
outputs. The PWM Fault feature maps FLTDAT<1:0> to the PWMxH and PWMxL outputs.
bit 14-10 CLSRC<4:0>: Current-Limit Control Signal Source Select for PWM # Generator bits
(2,3)
11111 = Reserved
•
•
•
01000 = Reserved
00111 = Fault 8
00110 = Fault 7
00101 = Fault 6
00100 = Fault 5
00011 = Fault 4
00010 = Fault 3
00001 = Fault 2
00000 = Fault 1
bit 9 CLPOL: Current-Limit Polarity for PWM Generator # bit
(1)
1 = The selected current-limit source is active-low
0 = The selected current-limit source is active-high
bit 8 CLMOD: Current-Limit Mode Enable bit for PWM Generator # bit
1 = Current-limit function is enabled
0 = Current-limit function is disabled
Note 1: These bits should be changed only when PTEN = 0. Changing the clock selection during operation will
yield unpredictable results.
2: When Independent Fault mode is enabled (IFLTMOD = 1), and Fault 1 is used for Current-Limit mode
(CLSRC<4:0> = b0000), the Fault Control Source Select bits (FLTSRC<4:0>) should be set to an unused
Fault source to prevent Fault 1 from disabling both the PWMxL and PWMxH outputs.
3: When Independent Fault mode is enabled (IFLTMOD = 1) and Fault 1 is used for Fault mode
(FLTSRC<4:0> = b0000), the Current-Limit Control Source Select bits (CLSRC<4:0>) should be set to an
unused current-limit source to prevent the current-limit source from disabling both the PWMxH and
PWMxL outputs.