| BM-1 Status Register Firmware Version: ??.??.?? | |||
| Bits | Description | Ref. | E/W Cond. | 
| 0-11 | unused | ||
| 12 | L1 BUSY | 0 | (E) =1 | 
| 13 | L2 BUSY | 0 | (E) =1 | 
| 14 | L1 ERROR | 0 | (W) =1 | 
| 15 | L2 ERROR | 0 | (W) =1 | 
| 16 | PUT DONE | 0 | |
| 17 | PUT DONE# | 1 | |
| 18 | GET DONE | 0 | |
| 19 | GET DONE# | 1 | |
| 20 | STT_L1BUSY# | 1 | |
| 21 | STT_L2BUSY# | 1 | |
| 22 | STT_L1ERROR# | 1 | |
| 23 | STT_L2ERROR# | 1 | |
| 24 | BM_L1_BUSY | 0 | |
| 25 | BM_L2_BUSY | 0 | |
| 26 | XFER_IN_ERR | 0 | |
| 27 | XFER_OUT_ERR | 0 | |
| 28 | OVERFLOW_ERROR (L1) | 0 | (E) =1 | 
| 29 | OVERFLOW_ERROR (L2) | 0 | (E) =1 | 
| 30 | STT_OUTPUT FIFO FULL (Latched) | 0 | (E) =1 | 
| 31 | VOID | 0 | 0 |