Silicon Image SiliconDrive SSD-P16G(I)-3100 - Manual (Page 60)

ATA R EGISTERS SSD-P XXX (I)-3100 D ATA S HEET
S ILICON S YSTEMS P ROPRIETARY
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3100P-06DSR P AGE 50 F EBRUARY 2, 2009
S ECTOR N UMBER R EGISTER
The Sector Number register is set by the host to specify the starting sector
number associated with the next ATA command to be executed. Following a
qualified ATA command sequence, the device sets the register value to the
last sector read or written as a result of the previous AT command.
When Logical Block Addressing (LBA) mode is implemented and the host
issues a command, the contents of the register describe the Logical Block
Number bits A[7:0]. Following an ATA command, the device loads the register
with the LBA block number resulting from the last ATA command
.
Table 37: Sector Number Register
Operation D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Read/Write Sector Number (CHS Addressing)
Logical Block Number bits A07-A00 (LBA Addressing)
Default Value 0 0 0 0 0 0 0 1