Microchip Technology dsPIC33 series User Manual

dsPIC33/PIC24 Family Reference Manual
DS70005340A-page 12  2018 Microchip Technology Inc.
Register 3-2: C1CONL: CAN Control Register Low
R/W-0 U-0 R/W-0 R/W-0 R-0 R/W-1 R/W-1 R/W-1
CON
— SIDL BRSDIS BUSY WFT1 WFT0 WAKFIL
(1)
bit 15 bit 8
R/W-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
CLKSEL
(1)
PXEDIS
(1)
ISOCRCEN
(1)
DNCNT4 DNCNT3 DNCNT2 DNCNT1 DNCNT0
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 CON: CAN Enable bit
1 = CAN module is enabled
0 = CAN module is disabled
bit 14 Unimplemented: Read as ‘0’
bit 13 SIDL: CAN Stop in Idle Control bit
1 = Stops module operation in Idle mode
0 = Does not stop module operation in Idle mode
bit 12 BRSDIS: Bit Rate Switching Disable bit (BRS)
1 = Bit Rate Switching is disabled, regardless of BRS in the transmit message object
0 = Bit Rate Switching depends on BRS in the transmit message object
bit 11 BUSY: CAN Module is Busy bit
1 = The CAN module is active
0 = The CAN module is inactive
bit 10-9 WFT<1:0>: Selectable Wake-up Filter Time bits
11 = T11
FILTER
10 = T10 FILTER
01 = T01 FILTER
00 = T00 FILTER
bit 8 WAKFIL: Enable CAN Bus Line Wake-up Filter bit
(1)
1 = Uses CAN bus line filter for wake-up
0 = CAN bus line filter is not used for wake-up
bit 7 CLKSEL: Module Clock Source Select bit
(1)
1 = Auxiliary clock is active when module is enabled
0 = CAN clock is not active when module is enabled
bit 6 PXEDIS: Protocol Exception Event Detection Disabled bit
(1)
A recessive “reserved bit” following a recessive FDF bit is called a “Protocol Exception”.
1 = Protocol exception is treated as a form error
0 = If a protocol exception is detected, CAN will enter the bus integrating state
bit 5 ISOCRCEN: Enable ISO CRC in CAN FD Frames bit
(1)
1 = Includes stuff bit count in CRC field and uses non-zero CRC initialization vector
0 = Does not include
Stuff Bit Co unt in CRC field and uses CRC initialization vector with all zeros
bit 4-0 DNCNT<4:0>: DeviceNet™ Filter Bit Number bits
10011-11111 = Invalid selection (compares up to 18 bits of data with EIDx)
10010 = Compares up to DATA Byte 2, bit 6 with EID17
...
00001 = Compares up to Data Byte 0, bit 7 with EID0
00000 = Does not compare data bytes
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> =
100 ).

Microchip Technology dsPIC33 series Specifications

General

Brand	Microchip Technology
Model	dsPIC33 series
Category	Motherboard
Language	English