• CMD ICS-000649-C01
• CMD PCI-649 (UDMA 5 IDE controller)
• Silicon Image SiI0649CL160 (UDMA 5 IDE controller)

The CMD PCI-649 is a standalone PCI to IDE/ATA controller originally sold by CMD Technologies before being acquired by Silicon Image technologies. The chip designed for efficient data transfer between a host system and IDE/ATA devices. It offers two independent IDE/ATA channels, each supporting up to two ATA/ATAPI devices, allowing a total of four devices. The chip adheres to the ATA/ATAPI-5 specifications, supporting transfer rates up to 100 MB/sec.

The PCI-649 is ideal for systems requiring additional IDE channels or those lacking an integrated IDE host controller. It is compatible with any system featuring a PCI bus interface, and can be easily implemented with an appropriate card and driver. Drivers are available for DOS, Windows 95/98, Windows Millennium, Windows NT 4.0, and Windows 2000. The chip is also compatible with default Microsoft IDE drivers.

Key features of the CMD PCI-649 include:

• Two independent IDE/ATA channels
• Support for up to four IDE/ATA devices
• 128-byte buffer
• Ultra and multiword DMA timing mode support
• Cyclical Redundancy Check (CRC)
• Built-in 80-pin cable detect circuitry
• External BIOS support
• 32-bit 33 MHz PCI Interface
• 133 MB/sec PCI burst rate bus master DMA support
• Maximum IDE/ATA data transfer rate of 100 MB/sec
• Compatibility with Microsoft IDE/ATA drivers
• 3.3V operating voltage with 5V tolerant I/O
• 160-pin TQFP package