Datasheet
PIC32MX5XX/6XX/7XX
DS60001156H-page 256 2009-2013 Microchip Technology Inc.
REGISTER 23-1: CiCON: CAN MODULE CONTROL REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
U-0 U-0 U-0 U-0 S/HC-0 R/W-1 R/W-0 R/W-0
— — — — ABAT REQOP<2:0>
23:16
R-1 R-0 R-0 R/W-0 U-0 U-0 U-0 U-0
OPMOD<2:0> CANCAP — — — —
15:8
R/W-0 U-0 R/W-0 U-0 R-0 U-0 U-0 U-0
ON
(1)
—SIDLE— CANBUSY — — —
7:0
U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— — — DNCNT<4:0>
Legend: HC = Hardware Clear S = Settable 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 31-28 Unimplemented: Read as ‘0’
bit 27 ABAT: Abort All Pending Transmissions bit
1 = Signal all transmit buffers to abort transmission
0 = Module will clear this bit when all transmissions aborted
bit 26-24 REQOP<2:0>: Request Operation Mode bits
111 = Set Listen All Messages mode
110 = Reserved
101 = Reserved
100 = Set Configuration mode
011 = Set Listen Only mode
010 = Set Loopback mode
001 = Set Disable mode
000 = Set Normal Operation mode
bit 23-21 OPMOD<2:0>: Operation Mode Status bits
111 = Module is in Listen All Messages mode
110 = Reserved
101 = Reserved
100 = Module is in Configuration mode
011 = Module is in Listen Only mode
010 = Module is in Loopback mode
001 = Module is in Disable mode
000 = Module is in Normal Operation mode
bit 20 CANCAP: CAN Message Receive Time Stamp Timer Capture Enable bit
1 = CANTMR value is stored on valid message reception and is stored with the message
0 = Disable CAN message receive time stamp timer capture and stop CANTMR to conserve power
bit 19-16 Unimplemented: Read as ‘0’
bit 15 ON: CAN On bit
(1)
1 = CAN module is enabled
0 = CAN module is disabled
bit 14 Unimplemented: Read as ‘0’
Note 1: If the user application clears this bit, it may take a number of cycles before the CAN module completes the
current transaction and responds to this request. The user application should poll the CANBUSY bit to
verify that the request has been honored.