Core1553BRT-EBR Enhanced Bit Rate 1553 Remote Terminal
Message Types
The 1553EBR bus supports eight message transfer types, allowing basic point-to-point and broadcast BC-to-RT data
transfers, as well as mode code messages. Figure 3 shows the message formats.
BC-to-RT Transfer
BC
BC
RT
Receive
Command
Data
0
Data
. . .
Data
n
Response
Time
Status
Word
Message
Gap
Next
Command
RT-to-BC Transfer
BC
RT
BC
Transmit Response
Status
Word
Data
0
Data
. . .
Data
n
Message
Gap
Next
Command
Command
Time
BC-to-all-RTs Broadcast
BC
BC
Receive
Command
Data
0
Data
. . .
Data
n
Message
Gap
Next
Command
Mode Command, No Data
BC
BC
RT
Mode
Command
Response
Time
Status
Word
Message
Gap
Next
Command
Mode Command, RT Transmit Data
BC
BC
RT
Mode
Command
Response
Time
Status
Word
Mode
Data
Message
Gap
Next
Command
Mode Command, RT Receive Data
BC
BC
RT
Mode
Command
Mode
Data
Response
Time
Status
Word
Message
Gap
Next
Command
Broadcast Mode Command, No Data
BC
BC
Mode
Command
Message
Gap
Next
Command
Broadcast Mode Command with Data
BC
BC
Mode
Command
Mode
Data
Message
Gap
Next
Command
Figure 3 • 1553EBR Message Formats
Advanced v1.1
5
ACTEL [ Actel Corporation ]
