CS5530A Datasheet | National Semiconductor

Description The CS5530A I/O panion is designed to work in conjunction with a GX-series processor (i.e., GX1, GXLV, GXm); all members of the National Semiconductor® Geode™ family of products. Together, the Geode processor and CS5530A provide a system-level solution well suited for the high performance needs of a host of devices which include digital set-top boxes and thin client devices. Due to the low power consumption of the GX-series processors, this solution satisfies the needs of battery powered devices such as National’s Web PAD™ system, and thermal design is eased allowing for fanless system design. The CS5530A I/O panion is a PCI-to-ISA bridge (South Bridge), ACPI-pliant chipset that provides AT/ISA style functionality. The device contains state-of-the-art power management that enables systems, especially battery powered systems, to significantly reduce power consumption. Audio is supported through PCI bus master engines which connect to an AC97 patible codec such as the National Semiconductor LM4548. If industry standard audio is required, a bination of hardware and software called Virtual System Architecture® (VSA™) technology is provided. The Geode GX-series processors’ graphics/video output is connected to the CS5530A. The CS5530A graphics/video support includes a PLL that generates the DOT clock for the GX-series processors (where the graphics controller is located), video acceleration hardware, gamma RAM plus three DACs for RGB output to CRT, and digital RGB that can be directly connected to TFT panels or NTSC/PAL encoders. The digital RGB output can also be connected to the National Semiconductor Geode CS9211 graphics panion (a flat panel display controller) for DSTN panel support. Data Shee . Geode™ CS5530A Internal Block Diagram PCI Bus USB PCI to USB Macro GPIOs GPCS Pwr Mgmt, Traps, Events, and Timers PCI to X-Bus / X-Bus to PCI Bridge CS5530A Support PCI Configuration Registers Active Decode Address Mapper X-Bus Arbiter X-Bus Graphics and...