ISD-200 ETC2 [List of Unclassifed Manufacturers], ISD-200 Datasheet - Page 37

• Manufacturer Part Number: ISD-200
• Description: USB Mass Storage Class Bulk-Only Specification Compliant
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Label
IDENTIFY
EVENT_NOTIFY
ISD-200 ASIC Datasheet
Vendor-Specific ATA Commands
There are two vendor-specific ATA commands implemented in the ISD-200. They are shown in the
following table.
Table 14 – Vendor-Specific ATA Commands
IDENTIFY
The vendor-specific Identify (FBh) command enables the ISD-200 to request configuration and USB
descriptor information from an attached mass storage device.
Command Code
FBh
Feature Set
The PACKET Command feature set may or may not be implemented.
Protocol
PIO data-in (refer to ATA/ATAPI-4 Specification, section 9.7).
Input
Device/Head register –
Normal Outputs
Register
Features
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
Register
Error
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Status
The DEV bit indicates the selected device.
Configuration
Specified in
BSY
Command
obs
obs
7
7
Code
Data
FBh
In-System Design Confidential
N/A
N/A
N/A
6
6
Description
This command is used to read ISD-200 configuration data and USB descriptor
data from an attached mass storage device.
This command communicates certain events to the device and is executed as
the events occur.
N/A
obs
obs
5
5
DEV
DEV
N/A
4
4
N/A
N/A
N/A
N/A
N/A
FBh
N/A
N/A
N/A
N/A
N/A
DRQ
N/A
N/A
3
3
N/A
N/A
N/A
2
2
N/A
N/A
N/A
1
1
ERR
N/A
N/A
0
0
35