HI-6110 (BUS CONTROLLER MODE)
EXAMPLE BC MIL-STD-1553 MESSAGE SEQUENCES
The HI-6110 Bus Controller issues a Receive Command with 3
data words to a Remote Terminal on the bus. The correct Status
Word is received.
Example 1. BC TO RT Transfer (BCRT message)
Host Write Data FIFO (Data Word 3)
Host Write Data FIFO (Data Word 2)
Host Write Data FIFO (Data Word 1)
Host Write CW1 (Command Word)
Host Read SW1 (Status Word)
STR
BCSTART
Receive
MIL-STD-1553 Bus
Command
Data
Word 1
Data
Word 2
Data
Word 3
Status
Word
From HI-6110 Bus Controller
From RT
VALMESS
The HI-6110 Bus Controller issues a Transmit Command
requiring a 2 data word response to a Remote Terminal on the
bus. The correct Status Word and 2 Data Words are received and
read by the host.
Example 2. RT TO BC Transfer (RTBC message)
Host Read Data FIFO (Data Word 2)
Host Read Data FIFO (Data Word 1)
Host Read SW1 (Status Word)
Host Write CW1 (Command Word)
STR
BCSTART
Transmit
MIL-STD-1553 Bus
Command
Status
Word
Data
Word 1
Data
Word 2
From HI-6110 BC
From RT
VALMESS
FFEMPTY
The HI-6110 Bus Controller issues an RT to RT transfer with 2
data words to two Remote Terminal on the bus. The RTs execute
the command and the Bus Controller validates the RT responses.
Note that the data transferred is captured by the HI-6110 Bus
Controller and may be read by the host.
Example 3. RT to RT Transfer (RTRT message)
Host Read Data FIFO (Data Word 2)
Host Read Data FIFO (Data Word 1)
Host Read SW2 (Status Word Tx)
Host Write CW2 (Transmit Command)
Host Write CW1 (Receive Command)
Host Read SW1 (Status Word Rx)
STR
BCSTART
Receive
Command
Transmit
Command
Status
Word (Tx)
Data
Word 1
Data
Word 2
Status
Word (Rx)
MIL-STD-1553 Bus
From HI-6110 Bus Controller
From Transmitting RT
From Receiving RT
VALMESS
FFEMPTY
HOLT INTEGRATED CIRCUITS
9
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
