Analyzing a PCI bus reference code

Use Word 7 of the reference code to determine the bus number, bus type, and logical card number from the direct select address (DSA).

Physical card slot labels and card positions for PCI buses are determined by using the DSA and the appropriate system unit or I/O unit card positions. See Card positions for details.

Table 1. PCI reference code analysis
Word of the reference code Control panel function Panel function characters Format Description
1 11 1–8 B600 uuuu or B700 uuuu uuuu = unit reference code (69xx)
1 – extended reference code information 11 9–16 iiii Frame ID of the failing resource
1 – extended reference code information 11 17–24 ffff Frame location
1 – extended reference code information 11 25–32 bbbb Board position
2 12 1–8 MIGVEP62 or MIGVEP63 See System Reference Code (SRC) Format Description .
3 12 9–16 cccc cccc Component reference code
4 12 17–24 pppp pppp Programming reference code
5 12 25–32 qqqq qqqq Program reference code high order qualifier
6 13 1–8 qqqq qqqq Program reference code low order qualifier
7 13 9–16 BBBB xxxx See DSA translation
8 13 17–24 TTTT MMMM Type (TTTT) and model (MMMM) of the failing item (if not zero)
9 13 25–32 uuuu uuuu Unit address (if not zero)



Last updated: Wed, June 19, 2019