CT1611 Datasheet, PDF (16/24 Pages) Aeroflex Circuit Technology – DMA Controller with Buffer Memory,MIL-STD-1750A Compatible

Operation Register
MSB
LSB
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1. Power up and reset to busy RTU.
2. Used to define operating mode of 1553 interface, used for both BC and RTU modes
543210
3. Select Code = 00101X 001010
XX0AH
DS = 0
Reg. Bit
0
Name
RT / BC
1
POE
2
CONT POLL
3
PFO
4,5
REPEAT
Definition
Terminal Mode
0 = RTU Mode
1 = BC Mode
Poll Operation Enable
Enables Polling Operation in BC Mode
0 = Not Enabled
1 = Enabled
Continuous Poll Operation Enable causes polling
operation to continuously loop when enabled and active.
0 = Not Enabled
If this bit is reset during an active polling loop, poll will end at
completion of polling frame.
1 = Enabled
Poll Fault Overide
When not enabled, Poll Operation will halt immediately after a transaction
failure. (Invalid Transfer Interrupt Generated).
Note: Poll can be restarted, with last (failed transaction) or next transaction.
When Enabled, poll will continue even if transaction failed.
0 = Not Enabled
1 = Enabled
If an Error condition is detected in BC mode, the interface can RETRY the
command sequence based on the following table:
Bit 5
0
0
1
1
Bit 4
0
1
0
1
Repeat Count
None
1
2
3
The Interface will continue on to the next Transaction if the prescribed number
of REPEAT attempts has transpired and the Error condition is still present.
SCDCT1611 Rev A
16