
8
Data Device Corporation
www.ddc-web.com
BU-6174X/6184X/6186X
Rev. C
SEPARATE BROADCAST DATA
0(LSB)
ENHANCED RT MEMORY MANAGEMENT
1
CLEAR SERVICE REQUEST
2
LEVEL/PULSE INTERRUPT REQUEST
3
INTERRUPT STATUS AUTO CLEAR
4
LOAD TIME TAG ON SYNCHRONIZE
5
CLEAR TIME TAG ON SYNCHRONIZE
6
TIME TAG RESOLUTION 0
7
TIME TAG RESOLUTION 1
8
TIME TAG RESOLUTION 2
9
256-WORD BOUNDARY DISABLE
10
OVERWRITE INVALID DATA
11
RX SA DOUBLE BUFFER ENABLE
12
BUSY LOOKUP TABLE ENABLE
13
14
ENHANCED INTERRUPTS
15(MSB)
DESCRIPTION
BIT
TABLE 5. CONFIGURATION REGISTER #2
(READ/WRITE 02H)
TABLE 6. START/RESET REGISTER
(WRITE 03H)
BIT
DESCRIPTION
15(MSB) RESERVED
14
RESERVED
12
13
RESERVED
8
10
9
11
RESERVED
CLEAR SELF-TEST REGISTER
INITIATE RAM SELF-TEST
CLEAR RT HALT
7
INITIATE PROTOCOL SELF-TEST
6
BC/MT STOP-ON-MESSAGE
5
BC STOP-ON-FRAME
4
TIME TAG TEST CLOCK
3
TIME TAG RESET
2
INTERRUPT RESET
1
BC/MT START
0(LSB)
RESET
COMMAND STACK POINTER 0
0(LSB)
COMMAND STACK POINTER 15
15(MSB)
DESCRIPTION
BIT
TABLE 7. BC/RT COMMAND STACK POINTER REG.
(READ 03H)
RT-to-RT FORMAT
0(LSB)
BROADCAST FORMAT
1
MODE CODE FORMAT
2
SUBSYSTEM FLAG BIT MASK
1553A/B SELECT
3
EOM INTERRUPT ENABLE
4
MASK BROADCAST BIT
5
OFF-LINE SELF-TEST
6
BUS CHANNEL A/B
7
RETRY ENABLED
8
RESERVED BITS MASK
9
TERMINAL FLAG BIT MASK
10
BUSY BIT MASK
12
SERVICE REQUEST BIT MASK
13
MESSAGE ERROR MASK
14
TRANSMIT TIME TAG FOR SYNCHRONIZE MODE COM-
MAND
15(MSB)
DESCRIPTION
BIT
11
TABLE 8. BC CONTROL WORD REGISTER
(READ/WRITE 04H)
BCST: MEMORY MANAGEMENT 0 (MM0)
0(LSB)
BCST: MEMORY MANAGEMENT 1 (MM1)
1
BCST:MEMORY MANAGEMENT 2 (MM2)
2
TX: MEMORY MANAGEMENT 1 (MM1)
BCST: CIRC BUF INT
3
BCST: EOM INT
4
RX: MEMORY MANAGEMENT 0 (MM0)
5
RX: MEMORY MANAGEMENT 1 (MM1)
6
RX: MEMORY MANAGEMENT 2 (MM2)
7
RX: CIRC BUF INT
8
RX: EOM INT
9
TX: MEMORY MANAGEMENT 0 (MM0)
10
TX: MEMORY MANAGEMENT 2 (MM2)
12
TX: CIRC BUF INT
13
TX: EOM INT
14
RX: DOUBLE BUFFER ENABLE
15(MSB)
DESCRIPTION
BIT
11
TABLE 9. RT SUBADDRESS CONTROL WORD
(READ/WRITE 04H)
TIME TAG 0
0(LSB)
TIME TAG 15
15(MSB)
DESCRIPTION
BIT
TABLE 10. TIME TAG REGISTER
(READ/WRITE 05H)