HI-6130_16 Datasheet, PDF (252/296 Pages) Holt Integrated Circuits – 3.3V BC / MT / RT Multi-Terminal Device

HI-6130, HI-6131
Circumstances for
Received Message
Terminal Response to
Received Command
Bits Updated
in Descriptor
Control Word
Bits Updated in Data Interrupt
Buffer Msg Info Word Options
RT-RT where CW1
is a valid non-mode
receive command.
CW2 is valid for
different RT but
transmitting RT does
not respond in time.
No terminal response.
Set Message Error (ME) status.
If RT-RT Command Word 1 is
broadcast (RT31), also set
the BCR status bit.
DBAC bit set.
BCAST bit
updated
DPB bit toggles.
MERR bit set.
BUSID bit updated.
RTRT bit set.
TMOERR bit set.
ILCMD bit reset.
(Other error bits reset).
MERR
IWA
IBR
RT-RT receive
command (CW1 is
valid). The transmitting
RT response has one
of these errors:
invalid word
(Manchester,
(sync, bit count,
parity or word count
error). Also includes
transmitting RT
response with Message
Error or Busy status
followed by no data
words.
No terminal response.
Set Message Error (ME) status.
If RT-RT Command Word 1 is
broadcast (RT31) also set
the BCR status bit.
DBAC bit set.
BCAST bit reset.
DPB bit toggles.
MERR bit set.
BUISID bit reset.
RTRT bit set.
IWDERR bit set,
or WCTERR bit set
for Tx RT Busy case.
ILCMD bit reset.
(Other error bits reset).
MERR
IWA
IBR
RT-RT command
where CW2 is a
valid non-mode
(subaddress 1-30)
transmit command.
CW1 is a non-mode
receive command
for RT31. (Normal
broadcast RT-RT
transmit)
Normal Status Word
response. Clear status
is transmitted with the
commanded number of
data words. Data words for
transmit are read from the
RAM data buffer assigned
in the Descriptor Table entry
for the transmit subaddress.
DBAC bit set.
BCAST bit reset.
DPB bit toggles.
Normal CS update:
BUSID bit updated.
MERR bit reset.
ILCMD bit reset.
RTRT bit set.
(All error bits reset).
IWA
(IXEQZ)
Valid mode code
command to RT31
(broadcast). The
BCSTINV bit in the RT
Configuration
Register equals 1.
No terminal response,
the message is ignored.
No Status Word change.
No change
No Message Info Word
is written
None
Valid undefined
mode code
command. The
UMCINV bit in the RT
Configuration
Register equals 1.
No terminal response,
the message is ignored.
No Status Word change.
NOTE:
This only applies for the
undefined mode codes:
MC0 to MC15 with T/R = 0
MC16,18 & 19 with T/R = 0
MC17,20 & 21 with T/R = 1
No change
No Message Info Word
is written
None
HOLT INTEGRATED CIRCUITS
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