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ATAPI Interface Chapter 5
STT8000A Product Manual Page 53
Read Position command
Bit
Byte
76543210
0 Operation code (34h)
1 Reserved
2 Reserved
3 Reserved
4 Reserved
5 Reserved
6 Reserved
7 Reserved
8 Reserved
9 Reserved
The following table describes the Read Position layout.
Byte Description Value Meaning
0
BOP, EOP, BPU nn 80h = Beginning of Partition
40h = End of Partition
04h = Block Position Unknown
1
Partition Number 00/01h Current Partition (bit 0)
2,3
Reserved 00h -
4-8
First Block Location
(Host Block Location)
NNNNNNNN Logical Number of next block to transfer
between host and buffer
8-11
Last Block Location
(Medium Block
Location)
NNNNNNNN
*
Not Supported
12
Reserved 00h —
13-15
Blocks in Buffer 000000
*
Not Supported
16-19
Bytes in Buffer 00000000
*
Not Supported