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Data Device Corporation
62743_pre7_noSA-DB.DOC
www.ddc-web.com
8-07-02
31
TABLE 44
. BC GENERAL PURPOSE QUEUE POINTER REGISTER
RT, MT INTERRUPT STATUS QUEUE POINTER REGISTER
(READ/WRITE 1Fh, PCI 7Ch)
BIT
DESCRIPTION
15 (MSB)
QUEUE POINTER BASE ADDRESS 15
14
QUEUE POINTER BASE ADDRESS 14
13
QUEUE POINTER BASE ADDRESS 13
12
QUEUE POINTER BASE ADDRESS 12
11
QUEUE POINTER BASE ADDRESS 11
10
QUEUE POINTER BASE ADDRESS 10
9
QUEUE POINTER BASE ADDRESS 9
8
QUEUE POINTER BASE ADDRESS 8
7
QUEUE POINTER BASE ADDRESS 7
6
QUEUE POINTER BASE ADDRESS 6
5
QUEUE POINTER BASE ADDRESS 5
4
QUEUE POINTER BASE ADDRESS 4
3
QUEUE POINTER BASE ADDRESS 3
2
QUEUE POINTER BASE ADDRESS 2
1
QUEUE POINTER BASE ADDRESS 1
0 (LSB)
QUEUE POINTER BASE ADDRESS 0
NOTE: TABLE 45 TO TABLE 51 ARE NOT REGISTERS, BUT THEY ARE
WORDS STORED IN RAM
TABLE 45
. BC MODE BLOCK STATUS WORD
BIT
DESCRIPTION
15(MSB)
EOM
14
SOM
13
CHANNEL B/A*
12
ERROR FLAG
11
STATUS SET
10
FORMAT ERROR
9
NO RESPONSE TIMEOUT
8
LOOP TEST FAIL
7
MASKED STATUS SET
6
RETRY COUNT 1
5
RETRY COUNT 0
4
GOOD DATA BLOCK TRANSFER
3
WRONG STATUS ADDRESS/NO GAP
2
WORD COUNT ERROR
1
INCORRECT SYNC TYPE
0(LSB)
INVALID WORD