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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 Sector Offset (15-8)
CL
Sector Offset (7-0)
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 5.7.
In the data transfer of Subcommand code 01h and 03h transfer by which data is
divided into multiple times is possible. Refer to Table 5.8.
After the designation of rewriting by Subcommand code 07h, reactivates in the
device for the update of the rewriting microcode of the microcode.
C141-E280 5-43