I/O Device

Marvell 88SX50xx Host Controllers
PCI	PowerPC	v. 4.0
PCI	x86 / IA-32	v. 4.0
Markets:	storage, networks
Serial ATA

The Marvell^® 88SX5040, 88SX5041, 88SX5080, and 88SX5081 four- and eight-port Serial ATA I host controllers provide a 64-bit PCI-X bus interface with high-performance features, such as Serial ATA I/ATA-6 Tag Command Queuing (TCQ) and Marvell's Enhanced Direct Memory Access (EDMA) architecture with interrupt coalescing.

The Serial ATA physical interfaces (PHYs) implement Spread Spectrum Clocking (SCC) as well as per-port amplitude and pre-emphasis adjustment, enabling enterprise backplane implementations.

The 88SX50xx controllers enable development of high-performance, cost-effective Serial ATA storage solutions such as storage arrays for Network Attached Storage (NAS), Storage Area Networks (SAN), Direct Attached Storage (DAS), and Nearline Backup. The 88SX50xx controller architecture is also ideal for RAID Adapter Card and RAID on Motherboard (ROMB) applications for Servers and Workstations.

• Four or eight Serial ATA ports at 1.5 Gigabits per second (Gbps)
• 64-bit, 133 MHz PCI-X bus
• High-performance command queuing with EDMA support
• Interrupt coalescing for minimal CPU overhead
• Optional Flash expansion BIOS interface (88SX5041 and 88SX5081 versions)
• 2-wire serial interface for configuration via serial Flash/ROM
• SSC support for reduced EMI
• Adjustable PHY amplitude and pre-emphasis settings per port
• Backplane drive capabilities beyond 30 inches of standard FR-4 trace
• High-performance SCSI software API model