TMC2074-NE SMSC, TMC2074-NE Datasheet - Page 102

• Manufacturer Part Number: TMC2074-NE
• Description: Network Controller & Processor ICs Standalone Mode CircLink Cntlr
• Manufacturer: SMSC

Specifications of TMC2074-NE

• Product: Controller Area Network (CAN)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.2.27 ERRINFO Register: Error Information
Revision 0.2 (10-23-08)
RCNCD2-0 (bits 14 to 12)
These bits represent the reconfiguration-generation-cause code, which is the cause of the RECON bit (bit
2) of COMR0, in three bits. Issuing CLEAR FLAGS command to COMR1 or software reset clears these
bits.
RCNCD2-0
000
001
010
011
100
101
11x
001 to 101 do not generate reconfiguration since they are saved by NAK/ACK counter-deformation
function (nACKNAK = 0: default). The reconfiguration generation cause at nACKNAK = 0 is only 000.
CMIEI3-0 (bits 11 to 8)
These bits represent the CMI receive error correction code, which is the cause of CMIECC bit (bit 14) = 1
in the INTSTA register in bits CMIE2-0-0. In CMIEI3, it indicates which port is the generation port.
However, if HUB is turned off, the status is retained to 0. (0: Port 1 side, 1: Port 2 side)
Writing 1 to the CMIECC bit or software reset clears these bits.
CMIEI3
0: Port 1
1: Port 2
ERRINFO
: Received garbage data (noise) during the wait period after token sending (other than 000 to 101)
: Received a signal other than ACK during the wait period after packet sending
: Generated trailing 0 error after ACK receive during the wait period after packet sending
: Received a signal other than NAK/ACK during the wait period after F.B.E sending
: Generated trailing 0 error after ACK receive during the wait period after F.B.E sending
: Generated trailing 0 error after NAK receive during the wait period after F.B.E sending
: Undefined
14-12
11-8
7-5
4-0
15
bit
name
--------
RCNCD2-0
CMIEI3-0
RXEC2-0
RESID
DATASHEET
init. value
0
0
0
0
0
Page 102
description
reserved ("0")
Reconfiguration Error Code
CMI RX Error Correction Information Code
RX Error Code
RX Error SID
Dual Mode CircLink™ Controller
address:3Ah
(Read Only)
SMSC TMC2074
Datasheet