Sigmatel Vendor SCSI Commands

Overview

This page documents the vendor specific SCSI commands used by Sigmatel in their SDK. This mostly applies to the STMP37xx/I.MX233 series but some of it can also apply to the STMP36xx series. The following devices are known to implement these commands:

Protocol Overview

The protocol works as follows. All commands are sent as vendor specific SCSI commands. The Command Data Block (CDB) usually consists of 10 bytes. The first byte is always 0xC0 for read commands are 0xC1 for write commands. The second byte is the actually command. The third byte is usually a tag or a type or an ID. The following commands are known to exist:

-- AmauryPouly - 11 Dec 2012