ADLINK PCI-7841/cPCI-7841 - Manual (Page 38)

30 Function Reference
Bit interpretation of ERRC1 and ERRC2
Bit interpretation of SEG4 to SEG 0
Bit ERRC1 Bit ERRC2 Function
0 0 bit error
0 1 form error
1 0 stuff error
1 1 other type of error
SEG4 SEG3 SEG2 SEG1 SEG0 Function
0 0 0 1 1 start of frame
0 0 0 1 0 ID.28 to ID.21
0 0 1 1 0 ID.20 to ID.18
0 0 1 0 0 bit SRTR
0 0 1 0 1 bit IDE
0 0 1 1 1 ID.17 to ID.13
0 1 1 1 1 ID.12 to ID.5
0 1 1 1 0 ID.4 to ID.0
0 1 1 0 0 RTR bit
0 1 1 0 1 reserved bit 1
0 1 0 0 1 reserved bit 0
0 1 0 1 1 Data length code
0 1 0 1 0 Data field
0 1 0 0 0 CRC sequence
1 1 0 0 0 CRC delimiter
1 1 0 0 1 acknowledge slot
1 1 0 1 0 end of frame
1 0 0 1 0 intermission
1 0 0 0 1 active error flag
1 0 1 1 0 passive error flag
1 0 0 1 1 tolerate dominant bits
1 0 1 1 1 error delimiter
1 1 1 0 0 overload flag