5–51RIO Block Transfer
Publication
17476.6 - July 1996
Rung 2:5
WHEN A BTR SUCCESSFULLY COMPLETES
, BUFFER THE BTR DATA AND UNLATCH BOTH THE
BTR VIRTUAL ENABLE BIT AND THE BTR PENDING BIT
. ALSO, LATCH THE BIT THAT
CONTINUES CHECKING THE BTR STATUS UNTIL THE SN MODULE TURNS OFF THE DONE BIT.
| |
| |
| VIRTUAL |
| BTR DONE |
| BIT BTR DATA |
| N7:60 +COP–––––––––––––––+ |
|––––] [––––––––––––––––––––––––––––––––––––––––––––––+–+COPY FILE +–+–|
| 13 | |Source #M1:1.110| | |
| | |Dest #N7:0| | |
| | |Length 10| | |
| | +––––––––––––––––––+ | |
| | | |
| | | |
| | | |
| | BTR | |
| | PENDING | |
| | B3 | |
| +––––(U)–––––––––––––––+ |
| | 0 | |
| | | |
| | | |
| | VIRTUAL | |
| | BTR ENABLE | |
| | BIT | |
| | N7:50 | |
| +––––(U)–––––––––––––––+ |
| | 15 | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | CHECK BTR | |
| | STATUS | |
| | B3 | |
| +––––(L)–––––––––––––––+ |
| 2 |
Rung 2:6
WHEN A BTR UNSUCCESSFULLY COMPLETES, BUFFER THE ERROR CODE AND UNLATCH THE BTR
ENABLE BIT AND THE BTR PENDING BIT. ALSO, LATCH THE CHECK BTR STATUS BIT IN
ORDER TO CONTINUE READING THE STATUS INFORMATION FROM THE SCANNER UNTIL IT
TURNS THE ERROR BIT OFF, COMPLETING THE HAND–SHAKE PROCESS.
| |
| |
| BTR ERROR |
| BIT |
| N7:60 +MOV–––––––––––––––+ |
|––––] [––––––––––––––––––––––––––––––––––––––––––––––+–+MOVE +–+–|
| 12 | |Source M1:1.103| | |
| | | *| | |
| | |Dest N7:21| | |
| | | 0| | |
| | +––––––––––––––––––+ | |
| | | |
| | | |
| | | |
| | BTR | |
| | PENDING | |
| | B3 | |
| +––––(U)–––––––––––––––+ |
| | 0 | |
| | | |
| | | |
| | VIRTUAL | |
| | BTR ENABLE | |
| | BIT | |
| | N7:50 | |
| +––––(U)–––––––––––––––+ |
| | 15 | |
| | | |
| | | |
| | | |
| | CHECK BTR | |
| | STATUS | |
| | B3 | |
| +––––(L)–––––––––––––––+ |
| 2 |
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