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FUJITSU Disk Drives MHJ2181AT User Manual

Page 118

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5.3 Host Commands

C141-E088-01EN

5-45

At command issuance (I/O registers setting contents)

1F7

H

(CM)

1

1

1

1

1

0

0

1

1F6

H

(DH)

×

L

×

DV

Max head/LBA [MSB]

1F5

H

(CH)

Max. cylinder [MSB]/Max. LBA

1F4

H

(CL)

Max. cylinder [LSB]/Max. LBA

1F3

H

(SN)

Max. sector/Max. LBA [LSB]

1F2

H

(SC)

xx

VV

1F1

H

(FR)

xx

At command completion (I/O registers contents to be read)

1F7

H

(ST)

Status information

1F6

H

(DH)

Ч

Ч

Ч

DV

Max head/LBA [MSB]

1F5

H

(CH)

Max. cylinder [MSB]/Max. LBA

1F4

H

(CL)

Max. cylinder [LSB]/Max. LBA

1F3

H

(SN)

Max. sector/Max. LBA [LSB]

1F2

H

(SC)

xx

1F1

H

(ER)

Error information

(17) READ NATIVE MAX ADDRESS (F8)

This command posts the maximum address intrinsic to the device, which can be
set by the SET MAX ADDRESS command. Upon receipt of this command, the
device sets the BSY bit and indicates the maximum address in the DH, CH, CL
and SN registers. Then, it clears BSY and generates an interrupt.

At command issuance (I/O registers setting contents)

1F7

H

(CM)

1

1

1

1

1

0

0

0

1F6

H

(DH)

×

L

×

DV

xx

1F5

H

(CH)

1F4

H

(CL)

1F3

H

(SN)

1F2

H

(SC)

1F1

H

(FR)

xx

xx

xx

xx

xx

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