IBM 3745 Series, Hardware Maintenance Reference

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EAC Card
Final Status Field (FSF)
The FSF (LCS bits 3 - 7) gives further status information. The encoding is based
upon the ISF configuration and is defined as follows:
Initial Status = B'100' (Special)
┌───────────────────┬──────────────────────────────────────────────┐
│ ISF
FSF │ │
│ │ │
│ ð 1 2 3 4 5 6 7 │ Meaning │
├───────────────────┼──────────────────────────────────────────────┤
│ 1 ð ð
ð ð ð ð x │ Time out (nothing received) │
│ 1 ð ð 1 1 1 ð x │ Disconnected │
│ 1 ð ð 1 1 1 1 x │ Connected │
└───────────────────┴──────────────────────────────────────────────┘
Initial Status = B'110' (Internal Box Error)
┌───────────────────┬──────────────────────────────────────────────┐
│ ISF
FSF │ │
│ │ │
│ ð 1 2 3 4 5 6 7 │ Meaning │
├───────────────────┼──────────────────────────────────────────────┤
│ 1 1 ð
ð ð ð ð ð │ AIO error │
│ 1 1 ð ð ð 1 ð ð │ CSP interconnection error │
│ 1 1 ð ð ð 1 1 ð │ EAC failed to answer │
│ 1 1 ð ð 1 ð ð ð │ EAC internal error │
│ 1 1 ð ð 1 ð ð 1 │ Transmitter timeout error │
│ 1 1 ð ð 1 ð 1 ð │ Storage error │
│ 1 1 ð ð 1 ð 1 1 │ Transmit overrun │
│ 1 1 ð ð 1 1 1 ð │ Receive buffer error │
│ 1 1 ð 1 ð ð ð ð │ No interrupt from EAC │
│ 1 1 ð 1 ð ð 1 ð │ Command rejected (See Note 1) │
│ 1 1 ð 1 ð 1 ð ð │ Trace already active │
│ 1 1 ð 1 ð 1 1 ð │ Transmit buffer error │
│ 1 1 ð 1 1 ð ð ð │ Invalid level 2 interrupt │
│ 1 1 ð 1 1 ð 1 ð │ Underflow │
│ 1 1 ð 1 1 1 ð ð │ SCTL/DMA/DMSW error (See Note 2) │
│ 1 1 ð 1 1 1 1 ð │ Overflow │
│ 1 1 ð 1 1 1 1 1 │ Collision │
└───────────────────┴──────────────────────────────────────────────┘
Notes:
1. An extended LCS code (ELCS) is generated. Refer to “Extended Line Commu-
nication Status (ELCS) For LCS X'D2'” on page 12-32 for details.
2. An extended LCS code (ELCS) is generated. Refer to “Extended Line Commu-
nication Status (ELCS) For LCS X'DC'” on page 12-33 for details.
Chapter 12. Ethernet Subsystem (ESS)
12-31