CT2581 Aeroflex Circuit Technology, CT2581 Datasheet - Page 10

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

WRAP AROUND
The wrap around capability is for test purposes only. It will test for
transfers to and from the Bus Controller without any sub system
intervention.
The wrap around sequence will commence on receipt of a valid
receive command word containing the wrap around subaddress
(1E) providing the WRAPEN input is set high. The data received
is stored in the data buffer memory and the device will respond
with status. The Bus Controller will then send a transmit command
to subaddress 1E and the data contained in the memory will be
transmitted following the status.
For the test to operate correctly the number of data words to be
transmitted must be the same as the number received.
1. Invalid command.
2. Non contiguous
3. Transmit command
4. Transmitting terminal
5. Incorrect terminal
6. Non contiguous data
7. Invalid data transmitted
8. Too few or too many
CMD
CMD
RX
TX
followed by another word
(excluding command
word for RTA, in which
case it will respond to
the latest command).
does not respond with
status within 16 uS.
transmitting.
following status from
from RTB.
data words.
RTB.
command words.
Error Conditions
SCDCT2578 REV B 3/11/98
*
DATA DATA
STATUS
DATA DATA
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.
Sequence terminated.
No status response.
Set message error.
Sequence terminated
No status response.
Set message error.
Sequence terminated.
No status response.
Set message error.
Sequence terminated.
Action taken by device
DATA
*
STATUS
DATA
10
DYNAMIC BUS CONTROL (00)
The device will respond with status.
1. Invalid receive command.
2. Invalid data word.
3. Non contiguous data.
4. Too few or too many
5. Invalid transmit
6. Transmit command
7.Transmit Broadcast
8. Transmit word count not
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
address.
DBC
data words.
followed by another
word.
to zero.
to zero and broadcast
address
command.
equal to receive word
count.
another word.
Error Conditions
Error Conditions
*
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 response.
Command ignored.
No status response.
Set message error.
Sequence terminated
No status response.
Set message error.
Set broadcast.
Sequence terminated.
No data transmission.
Set message error.
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