HI-6120 HOLTIC [Holt Integrated Circuits], HI-6120 Datasheet - Page 139

• Manufacturer Part Number: HI-6120
• Description: MIL-STD-1553 Remote Terminal ICs
• Manufacturer: HOLTIC [Holt Integrated Circuits]

* Command is illegal but terminal is not using “illegal command detection” (in form response).
** Command is illegal and terminal is using “illegal command detection”
*** Undefined mode command rendered invalid by UMCINV option bit. Command’s bit in Illegalization Table is “don’t care”.
Circumstances for
Received Message
T/R bit equals 0
AND
UMCINV bit in Config.
Register 1 equals 0.
The Illegalization Table
bit equals 0 *
T/R bit equals 0
AND
UMCINV bit in Config.
Register 1 equals 0.
The Illegalization Table
bit equals 1 **
Mode code command
word not followed by a
contiguous data word
(missing data word)
Mode code command
word followed by data
word with Manchester
encoding or parity error
(bad data word)
Terminal Response to
Received Command
Respond “In form”: Reset
Message Error (ME) status.
If not broadcast, transmit
Status Word. If broadcast,
set the BCR status bit and
suppress status response.
Set Message Error (ME)
status. If not broadcast,
transmit Status Word.
If broadcast, also set
Status Word BCR bit and
suppress Status response.
No Status Word transmit.
Set the Message Error
(ME) status bit. If broadcast,
set the BCR status bit.
No Status Word transmit.
Set the Message Error
(ME) status bit. If broadcast,
set the BCR status bit.
HOLT INTEGRATED CIRCUITS
HI-6120, HI-6121
139
Bits Updated
in Descriptor
Control Word
DBAC bit set.
BCAST bit
updated.
DPB bit toggles.
DBAC bit set.
BCAST bit
updated.
DPB bit toggles.
DBAC bit set.
BCAST bit
updated.
DPB bit toggles.
DBAC bit set.
BCAST bit
updated.
DPB bit toggles.
Bits Updated in Data
Buffer Msg Info Word
Normal CS update:
BUSID bit updated.
MERR bit reset.
ILCMD bit reset.
RTRT bit reset.
(Other error bits reset.)
ILCMD bit set.
MERR bit set.
BUSID bit updated.
RTRT bit reset.
(Other error bits reset.)
MERR bit set.
WCTERR bit updated.
BUSID bit updated.
ILCMD bit reset.
RTRT bit reset.
(Other error bits reset.)
MERR bit set.
IWDERR bit set.
BUSID bit updated.
ILCMD bit reset.
RTRT bit reset.
(Other error bits reset.)
Interrupt
Options
IWA
IBR
ILCMD
IWA
IBR
MERR
IWA
IBR
MERR
IWA
IBR