- Silicon Systems Silicon Drive Specification Sheet

ATA REGISTERS SSD-DXXX(I)-4210 DATA SHEET
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4210D-03DSR PAGE 33 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 20: 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