XRS10L220 Datasheet | Exar

FEATURES GENERAL FEATURES - Four independent 3/1.5Gbps SATA ports. - Connects 2 host ports to 2 device ports. - Supports 3/1.5Gbps rate detection/speed negotiation. - Supports power down modes - Active, partial, slumber and power down. - Advanced features configurable through MDIO bus. PORT MULTIPLIER/SELECTOR LOGIC FEATURES - Low latency architecture. - Supports OOB signaling for SATA applications. Internal OOB detectors for RESET/ INIT and WAKE. HIGH SPEED I/O FEATURES - High speed outputs with programmable pre- emphasis to drive long interconnects. - Selectable high speed input equalization for optimum reception. - pliant with SATA Gen-2i & Gen-2m specification. - Enables reliable data transmission over 1 meter of FR-4 and 4 meters or more of unequalized copper cable. - Supports spread spectrum clocking (SSC) to reduce EMI. PHYSICAL FEATURES - CMOS 0.13 Micron Technology - Single 1.2 V Power Supply - -40°C to 85°C Industrial Temperature Range - No heatsink or airflow required - 100-Pin LQFP Package 1.0 INTRODUCTION The XRS10L220 provides the bined advantages of the Serial ATA II Port Selector and Port Multiplier implementations for Serial ATA II systems at 3.0 Gbps and 1.5 Gbps. bining the capability to address two Serial ATA devices from one external link with support for a failover path from two independent hosts, the XRS10L220 offers a leading solution for propagation of high data rate Serial ATA products in a wide variety of applications. The integration of Serial ATA PHY links, a variety of digital logic capabilities, rate adjust FIFOs, integrated low-cost clock oscillator support, test and loopback features is achieved in a low cost and lower power implementation. The port selector function is used when dual hosts, such as I/O controllers, must access single-port disk drives in high availability storage subsystems where redundancy and load sharing are important. The outputs from the I/O controllers are multiplexed to a Serial ATA drive through the port...