USB2005 SMSC Corporation, USB2005 Datasheet - Page 16

• Manufacturer Part Number: USB2005
• Description: USB 2.0 ATA/ATAPI Controller
• Manufacturer: SMSC Corporation

USB 2.0 ATA/ATAPI Controller with PD-DRM
Datasheet
7.2.1
Device Serial Number & Page Length (Bytes 3 & 4...n)
In response to a SCSI INQUIRY Command, the USB2005 firmware will read the “Device Identify
Information” of an IDE drive. The Device Serial Number is created by removing all NULL code (00h)
and BLANK code (20h) characters from the “Device Identify Information” response. The Device Serial
Number is reported in Byte 4...n (see
Table
7.2). The number of characters of the Device Serial
Number will be reported as the Page Length (Byte 3) see
Table
7.2.
As a simple example, If the Device Identify Information of an IDE drive is 713 740, then the USB2005
will return 713740 as the Device Serial Number with a Page Length of 6.
Revision 0.2 (01-16-07)
16
SMSC USB2005
DATASHEET