5.3 Host Commands

(11) DOWNLOAD MICRO CODE (X’92’)

At command issuance (I/O registers setting contents)

1F7h(CM)

1

0

0

1

0

 

0

1

0

1F6h(DH)

1

X

1

 

DV

 

0

 

0

0

0

1F5h(CH)

 

 

 

 

 

00

 

 

 

 

1F4h(CL)

 

 

 

 

 

00

 

 

 

 

1F3h(SN)

 

 

Sector count (15-8)

 

 

1F2h(SC)

 

 

 

Sector count (7-0)

 

 

 

1F1h(FR)

 

 

Subcommand code

 

 

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

1F7h(ST)

 

 

 

Status information

 

 

 

1F6h(DH)

1

X

1

 

DV

 

0

 

0

0

0

1F5h(CH)

 

 

 

00

 

 

 

 

 

1F4h(CL)

 

 

 

00

 

 

 

 

 

1F3h(SN)

 

 

 

 

XX

 

 

 

 

 

1F2h(SC)

 

 

 

 

XX

 

 

 

 

 

1F1h(ER)

 

 

 

Error information

 

 

 

This command rewrites the microcode of the device (firmware).

When this command is accepted, the device does beginning the data transfer of the microcode or the microcode rewriting according to Subcommand code (Rewriting is also possible simultaneously with the data transfer). Refer to Table 5-5.

In the data transfer of Subcommand code:01h, transfer by which data is divided into multiple times is possible. Refer to Table 5-6.

After the designation of rewriting by Subcommand code:07h, reactivates in the device for the update of the rewriting microcode of the microcode.

C141-E202-01EN

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Image 109
Fujitsu MHU2100AT manual Download Micro Code X’92’