Download Microcode -92H; Obsolete Commands; Table 4-2 Download Microcode Subcommand Field; Table 4-3 Obsolete Command Opcodes - Western Digital Blue WD20SPZX Technical Reference Manual

COMMAND
STANDBY IMMEDIATE
WRITE BUFFER
WRITE DMA
WRITE DMA EXT
WRITE FPDMA QUEUED
WRITE LOG EXT
WRITE MULTIPLE
WRITE MULTIPLE EXT
WRITE SECTOR(S)
WRITE SECTOR(S) EXT
WRITE UNCORRECTABLE EXT
CONFIGURE STREAM
READ STREAM EXT
READ STREAM DMA EXT
WRITE STREAM EXT
WRITE STREAM DMA EXT
4.1.2

Download MicroCode -92h

lists the Download Microcode command allows the host to download the hard
Table 4-2
drive's.
Table 4-2. Download MicroCode Subcommand field
CODE
Download with offsets and save microcode for immediate and future use.
03h
07h
0Eh
0Fh
4.1.3

Obsolete Commands

Table 4-3 lists the hexadecimal codes specific to each obsolete command supported
by these hard drives.
Table 4-3. Obsolete Command Opcodes
COMMAND
INITIALIZE DEVICE PARAMETERS
RECALIBRATE
SEEK
DEVICE CONFIGURATION OVERLAY
WESTERN DIGITAL CONFIDENTIAL
ATA Command Set
Subcommand Description
Download and save microcode for immediate and future use
Download with offsets and save microcode for future use.
Activate downloaded microcode.
- 35 -
HEX OPCODE
E0
E8
CA
35
61
3F
C5
39
30
34
45
51
2B
2A
3A
3B
HEX OPCODE
91
10
70
B1