Data Device Corporation
62743_pre7_noSA-DB.DOC
www.ddc-web.com
8-07-02
26
TABLE 21
. CONFIGURATION REGISTER #2
(READ/WRITE 02h, PCI 08h)
BIT
DESCRIPTION
15(MSB)
ENHANCED INTERRUPTS
14
RAM PARITY ENABLE
13
BUSY LOOK UP TABLE ENABLE
12
RESERVED FUTURE USE, must be 0
11
OVERWRITE INVALID DATA
10
256-WORD BOUNDARY DISABLE
9
TIME TAG RESOLUTION 2
8
TIME TAG RESOLUTION 1
7
TIME TAG RESOLUTION 0
6
CLEAR TIME TAG ON SYNCHRONIZE
5
LOAD TIME TAG ON SYNCHRONIZE
4
INTERRUPT STATUS AUTO CLEAR
3
LEVEL/PULSE* INTERRUPT REQUEST
2
CLEAR SERVICE REQUEST
1
ENHANCED RT MEMORY MANAGEMENT
0(LSB)
SEPARATE BROADCAST DATA
TABLE 22. START/RESET REGISTER
(WRITE 03h, PCI 0Ch)
BIT
DESCRIPTION
15(MSB)
RESERVED
14
RESERVED
13
RESERVED
12
RESERVED
11
CLEAR RT HALT
10
CLEAR SELF-TEST REGISTER
9
INITIATE RAM SELF-TEST
8
RESERVED
7
RESERVED
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
TABLE 23
. BC/RT COMMAND STACK POINTER
REGISTER (READ 03h, PCI 0Ch)
BIT
DESCRIPTION
15(MSB)
COMMAND STACK POINTER 15
0(LSB)
COMMAND STACK POINTER 0
TABLE 24
. BC CONTROL WORD REGISTER
(READ/WRITE 04h, PCI 10h)
BIT
DESCRIPTION
15(MSB)
RESERVED
14
MESSAGE ERROR MASK
13
SERVICE REQUEST BIT MASK
12
BUSY BIT MASK
11
SUBSYSTEM FLAG BIT MASK
10
TERMINAL FLAG BIT MASK
9
RESERVED BITS MASK
8
RETRY ENABLED
7
BUS CHANNEL A/B*
6
OFF-LINE SELF-TEST
5
MASK BROADCAST BIT
4
EOM INTERRUPT ENABLE
3
1553A/B SELECT
2
MODE CODE FORMAT
1
BROADCAST FORMAT
0(LSB)
RT-TO-RT FORMAT
TABLE 25
. RT SUBADDRESS CONTROL WORD
(READ 04h, PCI 10h)
BIT
DESCRIPTION
15(MSB)
RX: GLOBAL CIRCULAR BUFFER ENABLE
14
TX: EOM INT
13
TX: CIRC BUF INT
12
TX: MEMORY MANAGEMENT 2 (MM2)
11
TX: MEMORY MANAGEMENT 1 (MM1)
10
TX: MEMORY MANAGEMENT 0 (MM0)
9
RX: EOM INT
8
RX: CIRC BUF INT
7
RX: MEMORY MANAGEMENT 2 (MM2)
6
RX: MEMORY MANAGEMENT 1 (MM1)
5
RX: MEMORY MANAGEMENT 0 (MM0)
4
BCST: EOM INT
3
BCST: CIRC BUF INT
2
BCST: MEMORY MANAGEMENT 2 (MM2)
1
BCST: MEMORY MANAGEMENT 1 (MM1)
0(LSB)
BCST: MEMORY MANAGEMENT 0 (MM0)
TABLE 26
. TIME TAG REGISTER
(READ/WRITE 05h, PCI 14h)
BIT
DESCRIPTION
15(MSB)
TIME TAG 15
0(LSB)
TIME TAG 0