HI-6120 HOLTIC [Holt Integrated Circuits], HI-6120 Datasheet - Page 125

• 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
SYNCHRONIZE
WITHOUT DATA
(MC1):
Mode code command
with mode code
00001 and T/R bit
equals 1
MC1 EXCEPTIONS:
Invalid command word.
OR
T/R bit equals 0 and
UMCINV bit in Config.
Register 1 equals 1 ***
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 is followed by a
contiguous data word
Terminal Response to
Received Command
Default response: Reset
Message Error (ME) status
then transmit Status Word.
If broadcast, set the Status
Word BCR bit and suppress
Status Word transmit.
Reset the Time Tag counter
to 0x0000.
No terminal response,
the message is ignored.
No Status Word change.
(mode code is undefined
when T/R bit equals 0)
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.
The Time Tag counter is
not reset.
Set Message Error (ME)
status. If not broadcast,
transmit Status Word.
If broadcast, also set
Status Word BCR bit and
suppress Status response.
The Time Tag counter is
not reset.
No Status Word transmit.
Set the Message Error
(ME) status bit.
HOLT INTEGRATED CIRCUITS
HI-6120, HI-6121
125
Bits Updated
in Descriptor
Control Word
DBAC bit set.
BCAST bit
updated.
DPB bit toggles.
No Change
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 update:
BUSID bit updated.
MERR bit reset.
ILCMD bit reset.
RTRT bit reset.
(All error bits reset.)
No Message Info
Word is written
Normal update:
BUSID bit updated.
MERR bit reset.
ILCMD bit reset.
RTRT bit reset.
(All error bits reset.)
ILCMD bit set.
MERR bit set.
BUSID bit updated.
RTRT bit reset.
(Other error bits reset.)
MERR bit set.
WCTERR bit set.
BUSID bit updated.
ILCMD bit reset.
RTRT bit reset.
(Other error bits reset.)
Interrupt
Options
IWA
IBR
None
IWA
IBR
ILCMD
IWA
IBR
MERR
IWA