ATA REGISTERS

SSD-PXXX(I)-3100 DATA SHEET

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 39: Cylinder High Register

Operation

D7

D6

D5

D4

D3

D2

D1

D0

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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3100P-06DSR

PAGE 52

FEBRUARY 2, 2009

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Silicon Image SSD-P16G(I)-3100 manual Cylinder High Register, Logical Block Number bits A23-A16 LBA Addressing