CT2581 Aeroflex Circuit Technology, CT2581 Datasheet - Page 14

• Manufacturer Part Number: CT2581
• Description: Ct2578 / Ct2581 Simple Remote Terminal For Mil-std-1553 / 1760 & Mcair
• Manufacturer: Aeroflex Circuit Technology

TRANSMIT BIT WORD (13)
On receipt of a valid Command to transmit the BIT Word the
device will respond with Status followed by the BIT word, after
which the BIT register is cleared.
Bits 2 to 15 are always zero. Bit 1 is set if the subsystem sends too
many NSSTRB’s.
TX BIT
1. Invalid command.
2. Command followed by
3. T/R bit of command set
4. Broadcast address.
5. T/R bit of command set
1. Invalid command.
2. Command followed by
3. T/R bit of command set
4. Broadcast address.
5. T/R bit of command set
CMD
to zero.
to zero and broadcast
address
to zero and broadcast
address
to zero.
another word.
another word.
Error Conditions
Error Conditions
SCDCT2578 REV B 3/11/98
*
STATUS
WORD
BIT
No response.
Command ignored.
No status response.
Set message error.
Sequence terminated.
No status response.
Set message error.
Sequence terminated
No status response.
Set message error.
Set broadcast.
Sequence terminated.
No status response.
Set message error.
Set broadcast.
Sequence terminated.
No response.
Command ignored.
No status response.
Set message error.
Sequence terminated.
No status response.
Set message error.
Sequence terminated
No status response.
Set message error.
Set broadcast.
Sequence terminated.
No status response.
Set message error.
Set broadcast.
Sequence terminated.
Action taken by device
Action taken by device
14
SELECTED TRANSMITTER SHUTDOWN (14)
This mode command is not normally used in dual redundant
systems.
The device will respond with status and shut down the transmitter
on the bus designated by the two least significant bits of the data
word.
The bus addresses of the device are channel 0 - 00, channel
1 - 01. If the command is received on the same bus as the
designated shut down bus then the device will respond with status
and no shut down will occur.
Once a transmitter has been shut down it can only be reactivated by
an 'Override Shutdown Command' or 'Reset Remote Terminal'.
If the command was a broadcast the status transmission will be
suppressed and the broadcast bit in the status register set.
OVERRIDE SEL TRANSMITTER SHUTDOWN (15)
This mode command is not normally used in dual redundant
systems.
The device will respond with status and reactivate a shutdown
transmitter on the bus designated by the two least significant bits
of the data word.
The bus addresses of the device are channel 0 - 00 channel
1 - 01. If the command is received on the same bus as the
designated override shutdown bus then the device will respond
with status and no reactivation will occur.
If the command was a broadcast the status transmission will be
suppressed and the broadcast bit in the status register set.
TX DIS
1. Invalid command.
2. Command not followed
3. Command followed by
4. T/R bit of command set
5. T/R bit of command set
TX EN
CMD
CMD
contiguously by data
word
too many words.
to one.
to one and broadcast
address
Error Conditions
DATA
DATA
*
*
STATUS
STATUS
No response.
Command ignored.
No status response.
Set message error.
Sequence terminated.
No status response.
Set message error.
Sequence terminated
No status response.
Set message error.
Sequence terminated.
No status response.
Set message error.
Set broadcast.
Sequence terminated.
Action taken by device