hi-6110 Holt Integrated Circuits, Inc., hi-6110 Datasheet - Page 6

• Manufacturer Part Number: hi-6110
• Description: Bc / Rt / Mt Message Processor
• Manufacturer: Holt Integrated Circuits, Inc.

MSB
MSB
MSB
MSB
MSB
COMMAND WORD 1 REGISTER (Write only) Write Address: X000
COMMAND WORD 2 REGISTER (Write only) Write Address: X001
STATUS WORD 1 REGISTER (Read only) Read Address: 0000
STATUS WORD 2 REGISTER (Read only) Read Address: 0001
BUS
BUS B WORD REGISTER (Read only) Read Address: 1010
15 14 13 12 11 10 9
15 14 13 12 11 10 9
15 14 13 12 11 10 9
15 14 13 12 11 10 9
15 14 13 12 11 10 9
A WORD REGISTER
RT Address
RT Address
RT Address
RT Address
1
Bus A/B Word 15:0
Subaddress /
Subaddress /
8
8
8
8
(Read only) Read Address: 1001
8
Mode
Mode
R
R
7
7
7
7
7
R
R
HI-6110 (BUS CONTROLLER MODE)
6
6
6
6
6
R
R
5
5
5
5
5
Data Word Count /
Data Word Count /
4
4
4
4
4
HOLT INTEGRATED CIRCUITS
Mode Code
Mode Code
3
3
3
3
3
2
2
2
2
2
1
1
1
1
1
BC OPERATION
0
0
0
0
0
LSB
LSB
LSB
LSB
LSB
6
The Command Word 1 register is loaded by the host with the
MIL-STD-1553 Command Word to be issued by the Bus
Controller. Bit 10 should be set for Transmit, reset for Receive.
receive command word and Command Word 2 register holds
the transmit command word.
Used only for RT-to-RT commands, the Command Word 2
register is loaded by the host with the MIL-STD-1553 transmit
Command Word addressed to the transmitting Remote
Terminal. The Command Word 1 register is loaded with the
receive Command Word addressed to the receiving Remote
Terminal.
If the next Message is not an RT-to-RT transfer, it is necessary
to write the Transmit/Receive bit 10 to “0”.
The Status Word 1 register holds the returned MIL-STD-1553
Status Word received from an RT responding to a BC issued
command.
For RT to RT commands, the Status Word 1 register captures
the status word returned by the receiving remote terminal,
while the Status Word 2 register captures the status word
returned by the transmitting remote terminal
Used only for RT to RT commands, the Status Word 2 register
captures the MIL-STD-1553 status word returned by the
transmitting remote terminal.
In BC mode, the Bus A Word register holds the last valid MIL-
STD-1553 word received on Bus A. The Bus B Word register
holds the last valid MIL-STD-1553 word received on Bus B.
While /STROBE is low to read a Bus Word register, the sync
type associated with the stored word can be determined from
the RF0 and RF1 pins. The RF1 signal is high for Command
Sync, the RF0 signal is high for Data Sync.
For RT to RT commands, Command Word 1 register holds the