hi-6131pqtf QuickLogic Corp, hi-6131pqtf Datasheet - Page 98

• Manufacturer Part Number: hi-6131pqtf
• Description: Mil-std-1553 / Mil-std-1760 3.3v Bc / Mt / Rt Multi-terminal Device
• Manufacturer: QuickLogic Corp

Bit No.
7
6
5
4
3
2
1
Mnemonic
DSR
SFS
LE
SE
WE
RRGSA
RRCW2
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0
0
0
0
0
0
0
HOLT INTEGRATED CIRCUITS
Function
Data Stack Rollover
Bit 7 is logic 1 to indicate that this message overran the monitor Data
Stack, causing the stack pointer to roll over to the base address.
Status Flag Set
Bit 6 is logic 1 when a status bit was set in an RT Status Word response.
Word Count (Length) Error
Bit 5 indicates that the number of data words transmitted by the BC or
RT differs from the Word Count specified in the Command Word. An RT
Status Word with the Busy bit set will not cause Word Count Error. A
transmit command with Response Timeout will not cause Word Count
Error.
Sync Type Error
Bit 4 is logic 1 to indicate that a BC transmitted data sync with a
Command Word, or a command / status sync occurred with Data Word,
or an RT responded with data sync in its Status Word and/or command/
status sync in a Data Word.
Invalid Word Error (WE)
Bit 3 is logic 1 indicate on invalid word error occurred. This includes
Manchester decoding errors in the sync pattern or word bits, or the
wrong number of bits in the word, or parity error.
RT-to-RT Gap/Sync/Address Error (RRGSA)
Bit 2 is logic 1 if one or more of the following RT-RT message conditions
occur:
RT-to-RT Command Word 2 Error (RRCW2)
Bit 1 is logic 1 if an RT-to-RT message occurs (two contiguous
Command Words) with one or more of the following illogical conditions:
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HI-6130, HI-6131
MT Gap Check is enabled (bit 12 equals 1 in register 0x0029) and
an RT Status Word is received having a response time less than
4µs, per MIL-STD-1553B (mid-parity to mid-sync). In other words,
the bus “dead time” was less than 2µs.
One of the RTs responds with an invalid Status Word, having a sync
error, a Manchester encoding error, bit count error and/or parity error
One of the RT Status Words contains an RT Address that differs
from the RT Address in the corresponding Command Word.
Transmit Command Word 2 T/R bit equals 0 (receive)
Transmit Command Word 2 subaddress field equals 00000 or 11111
(mode command indicated)
Transmit Command Word 2 has the same RT Address as Receive
Command Word 1
Transmit Command Word 2 has sync error
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