5.3 Host Commands

(9)DOWNLOAD MICROCODE (X’92’)

At command issuance (Shadow Block Registers setting contents)

CM

1

0

0

1

0

 

0

1

0

 

 

 

 

 

 

 

 

 

 

 

 

DH

1

x

1

 

x

 

0

 

0

0

0

CH

 

 

 

 

 

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CL

 

 

 

 

 

00

 

 

 

 

SN

 

 

Sector count (15-8)

 

 

 

 

 

 

 

 

 

 

SC

 

 

 

Sector count (7-0)

 

 

 

 

 

 

 

 

 

 

 

FR

 

 

 

Subcommand code

 

 

 

At command completion (Shadow Block Registers contents to be read)

ST

 

 

 

Status information

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DH

1

x

1

 

x

 

0

 

0

0

0

 

 

 

 

 

 

 

 

 

 

 

 

CH

 

 

 

 

 

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CL

 

 

 

 

 

00

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SN

 

 

 

 

 

xx

 

 

 

SC

 

 

 

 

 

xx

 

 

 

 

 

 

 

 

 

 

 

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 5.8.

In the data transfer of Subcommand code:01h, transfer by which data is divided into multiple times is possible. Refer to Table 5.9.

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

Table 5.8 Operation of DOWNLOAD MICROCODE

Host Command

 

Movement of device

Subcommand code

Sector count

Data transfer

Microcode rewriting execution

(FR Field)

(SN, SC Field)

 

 

01h

0000h

Non

Rewriting execution reservation

xxxxh

It is.

Rewriting execution reservation

 

07h

0000h

Non

Execution. **

xxxxh

It is.

Execution. **

 

Excluding 01h and 07h

 

Abort

C141-E249

5-45

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Fujitsu MHW2060BS, MHW2100BS, MHW2080BS, MHW2120BS, MHW2040BS manual Download Microcode X’92’, Operation of Download Microcode