HI-1575
Write TX,
(MIL-STD-1553 Status word)
Write TX,
(MIL-STD-1553 Data word)
Read SAM,
check SENDDATA=1
D15 - D0
R/W
TXDATA
DON’T CARE
DON’T CARE
DON’T CARE
DON’T CARE
DON’T CARE
SAM
TXDATA
CHA/CHB
SYNC
VALID
VALID
REG
STRB
SYNC
SYNC
15
14
13
3
3
2
1
0
P
SYNC
SYNC
15
BUSA (B)
FIGURE 3. EXAMPLE TRANSMIT OPERATION
Read RXA or RXB,
(MIL-STD-1553 Data word)
Read SAM
SYNC
SYNC
15
14
13
12
2
1
0
P
SYNC
SYNC
15
14
13
12
BUSA (B)
RCVA (B)
R/W
DON’T CARE
DON’T CARE
DON’T CARE
CHA/CHB
REG
VALID
STRB
D15 - D0
SYNC
SAM
RXA (B)
SYNC
FIGURE 4. EXAMPLE RECEIVE OPERATION
CHAN OR CHA/CHB
REG
Register
0
1
X
0
0
1
ReceiverAData (RXA)
Receiver B Data (RXB)
Status & Mode Register (SAM)
FIGURE 5. HI-1575 REGISTER MAP
HOLT INTEGRATED CIRCUITS
5
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
