CT2578 Datasheet, PDF (4/22 Pages) Aeroflex Circuit Technology – CT2578 / CT2581 SIMPLE REMOTE TERMINAL FOR MIL-STD-1553 / 1760 & McAir

MESSAGE FORMATS
BC TO RT TRANSFER
DATA BUS
COMMAND DATA
NVCR
NHDR
NDATA
NCMDSTRB
NDATAST
T0-T15
DATA
DATA
STATUS
1
2
3
4567
1. Valid command word received, contents available on T0-T15 for illegalization purposes.
2. First valid data word (1760 header word) received, contents available on T0-T15 and stored in 32 word data memory.
3. Second valid data word received, contents available on T0-T15 and stored in 32 word data memory.
4. Last valid data word received, contents available on T0-T15 and stored in 32 word data memory. Status bits must be valid within 250nS.
5. Status register contents transferred to transmit buffer.
6. NCMDSTRB indicates valid message received, command word available on T0-T15.
7. Data words transferred from 32 word data memory to subsystem at 500 nS per word.
RT TO BC TRANSFER
DATA BUS
COMMAND
STATUS DATA
DATA
DATA
NVCR
NCMDSTRB
NSSTRB
T0-T15
1234
1. Valid command word received, contents available on T0-T15 for illegalization purposes. Status must be valid within 600 nS.
2. Status register contents transferred to transmit buffer.
3. NCMDSTRB indicates valid message received, command word available on T0-T15.
4. Data words transferred from subsystem to 32 word data memory at 1 uS per word.
RT TO RT TRANSFER (RECEIVING TERMINAL)
DATA BUS
REC CMD TRAN CMD
STATUS DATA
DATA
STATUS
NVCR
NHDR
NDATA
NCMDSTRB
NDATAST
T0-T15
1
2
SCDCT2578 REV B 3/11/98
3
4
4
5678