Silicon-image SiliconDrive SSD-H16G(I)-3500 User Manual Page 30

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ATA REGISTERS SSD-HXXX(I)-3500 DATA SHEET
SILICONSYSTEMS PROPRIETARY
This document and the information contained within it is confidential and proprietary to SiliconSystems, Inc.
All unauthorized use and/or reproduction is prohibited.
3500H-03DSR PAGE 21 FEBRUARY 2, 2009
CYLINDER HIGH REGISTER
The Cylinder High register is set by the host to specify the cylinder number
high byte. Following an ATA command, the content of the register is set
internally by the device, identifying the cylinder number high byte.
In LBA mode, the 8-bit register maintains the contents of the Logical Block
number address bits A23:A16.
Table 23: Cylinder High Register
Operation
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Read/Write Cylinder Number Low Byte (CHS Addressing)
Logical Block Number bits A23-A16 (LBA Addressing)
Default Value 0 0 0 0 0 0 0 0
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