smsc USB97C202 USB 2.0 ATA/ ATAPI Controller handbook
USB97C202 is a USB 2.0 ATA/ ATAPI controller from SMSC. The controller supports 2.5 volt low power core operation, 3.3 volt I/O, and is compatible with USB 2.0 specifications. It also supports USB Mass Storage Compliant Bootable BIOS.