Command Set - Seagate Medalist 1640 Product Manual

Medalist 1640 and 2140 Product Manual, January 1996

3.2 Command set

This section lists all of the ATA commands the drives use. Commands
whose implementation is specific for the drive are discussed in this
manual. For information on Seagate's implementation on the other
supported commands, refer to the Seagate ATA Interface Reference
Manual, publication number 36111-xxx. Additional information on Fast
ATA-related features is provided by the Small Form Factor specification,
SFF-8011 Rev 1.1, September 18, 1993.
The following table lists all commands implemented in the drives. The
table uses the following abbreviations:
FR Features register
SC Sector Count register
SN Sector Number register
CY Cylinder register
DH Drive/Head register
n This register does not contain a valid parameter for this
command.
y This register contains a valid parameter for this command. In
the Drive/Head register, both the drive and head parameters
are valid for this command.
D The Drive/Head register contains a valid drive parameter for
this command. The head parameter is not valid for this
command.
Command name
Active and Set Idle Timer
Active Immediate
Check Idle Mode
Check Power Mode
Execute Drive Diagnostics
Format Track
Identify Drive
Idle
continued
Parameters used
Command
code (in hex)
FR SC SN CY DH
FB n y
F9 n n
FD n y
98, E5 n y
90 n n
50 n y
EC n n
97, E3 n y
27
n n D
n n D
n n D
n n D
n n D
n y y
n n D
n n D