dsPIC33/PIC24 Family Reference Manual
DS70005340A-page 10 2018 Microchip Technology Inc.
Register 3-1: C1CONH: CAN Control Register High
R/W-0 R/W-0 R/W-0 R/W-0 S/HC-0 R/W-1 R/W-0 R/W-0
TXBWS3 TXBWS2 TXBWS1 TXBWS0 ABAT REQOP2 REQOP1 REQOP0
bit 15 bit 8
R-1 R-0 R-0 R/W-1 R/W-1 R/W-0 R/W-0 R/W-0
OPMOD2 OPMOD1 OPMOD1 TXQEN
(1)
STEF
(1)
SERRLOM
(1)
ESIGM
(1)
RTXAT
(1)
bit 7 bit 0
Legend: S = Settable bit HC = Hardware Clearable bit
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 15-12 TXBWS<3:0>: Transmit Bandwidth Sharing bits
1111-1100 = 4096
1011 = 2048
1010 = 1024
1001 = 512
1000 = 256
0111 = 128
0110 = 64
0101 = 32
0100 = 16
0011 = 8
0010 = 4
0001 = 2
0000 = No delay
bit 11 ABAT: Abort All Pending Transmissions bit
1 = Signals all transmit buffers to abort transmission
0 = Module will clear this bit when all transmissions are aborted
bit 10-8 REQOP<2:0>: Request Operation Mode bits
111 = Sets Restricted Operation mode
110 = Sets Normal CAN 2.0 mode; error frames on CAN FD frames
101 = Sets External Loopback mode
100 = Sets Configuration mode
011 = Sets Listen Only mode
010 = Sets Internal Loopback mode
001 = Sets Disable mode
000 = Sets Normal CAN FD mode; supports mixing of full CAN FD and Classic CAN 2.0 frames
bit 7-5 OPMOD<2:0>: Operation Mode Status bits
111 = Module is in Restricted Operation mode
110 = Module is in Normal CAN 2.0 mode; error frames on CAN FD frames
101 = Module is in External Loopback mode
100 = Module is in Configuration mode
011 = Module is in Listen Only mode
010 = Module is in Internal Loopback mode
001 = Module is in Disable mode
000 = Module is in Normal CAN FD mode; supports mixing of full CAN FD and Classic CAN 2.0 frames
bit 4 TXQEN: Enable Transmit Queue bit
(1)
1 = Enables TXQ and reserves space in RAM
0 = Does not reserve space in RAM for TXQ
Note 1: These bits can only be modified in Configuration mode (OPMOD<2:0> =
100
).
To Next Page
Loading...
Need help?
General
