Datasheet

 2009-2012 Microchip Technology Inc. DS70593D-page 225
dsPIC33FJXXXGPX06A/X08A/X10A
REGISTER 19-26: CiTRmnCON: ECAN™ TX/RX BUFFER m CONTROL REGISTER (m = 0,2,4,6; n = 1,3,5,7)
R/W-0 R-0 R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0
TXENn TXABTn TXLARBn TXERRn TXREQn RTRENn TXnPRI<1:0>
bit 15 bit 8
R/W-0 R-0 R-0 R-0 R/W-0 R/W-0 R/W-0 R/W-0
TXENm TXABTm
(1)
TXLARBm
(1)
TXERRm
(1)
TXREQm RTRENm TXmPRI<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 15-8 See Definition for Bits 7-0, Controls Buffer n
bit 7 TXENm: TX/RX Buffer Selection bit
1 = Buffer TRBn is a transmit buffer
0 = Buffer TRBn is a receive buffer
bit 6 TXABTm: Message Aborted bit
(1)
1 = Message was aborted
0 = Message completed transmission successfully
bit 5 TXLARBm: Message Lost Arbitration bit
(1)
1 = Message lost arbitration while being sent
0 = Message did not lose arbitration while being sent
bit 4 TXERRm: Error Detected During Transmission bit
(1)
1 = A bus error occurred while the message was being sent
0 = A bus error did not occur while the message was being sent
bit 3 TXREQm: Message Send Request bit
Setting this bit to ‘
1’ requests sending a message. The bit will automatically clear when the message
is successfully sent. Clearing the bit to ‘
0’ while set will request a message abort.
bit 2 RTRENm: Auto-Remote Transmit Enable bit
1 = When a remote transmit is received, TXREQ will be set
0 = When a remote transmit is received, TXREQ will be unaffected
bit 1-0 TXmPRI<1:0>: Message Transmission Priority bits
11 = Highest message priority
10 = High intermediate message priority
01 = Low intermediate message priority
00 = Lowest message priority
Note 1: This bit is cleared when TXREQ is set.