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CS5530A Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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CS5530A Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 259 page  © 2001 National Semiconductor Corporation www.national.com General Description The CS5530A I/O companion is designed to work in con- junction with a GX-series processor (i.e., GX1, GXLV, GXm); all members of the National Semiconductor® Geode™ family of products. Together, the Geode proces- sor 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 pro- cessors, this solution satisfies the needs of battery pow- ered devices such as National’s WebPAD™ system, and thermal design is eased allowing for fanless system design. The CS5530A I/O companion is a PCI-to-ISA bridge (South Bridge), ACPI-compliant 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 consump- tion. Audio is supported through PCI bus master engines which connect to an AC97 compatible codec such as the National Semiconductor LM4548. If industry standard audio is required, a combination of hardware and software called Virtual System Architecture® (VSA™) technology is pro- vided. 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 com- panion (a flat panel display controller) for DSTN panel sup- port. Geode™ CS5530A Internal Block Diagram X-Bus ISA Bus PCI Bus USB PCI to X-Bus / X-Bus to PCI Bridge PCI to USB Macro Active Decode Address Mapper Audio/Codec/MPU Interface Pwr Mgmt, Traps, Events, and Timers IDE Interface Display Interface MPEG, DOT Clock CSC and SCL RGB/FP Interface AT Compatibility Logic ISA Bus Interface AT Ports, ISA Megacells Display PCI Configuration Registers Graphics and Video from CPU X-Bus Arbiter CS5530A Support GPIOs IDE AC97 Codec Ultra DMA/33 (e.g., LM4548) Joystick / Game Port Joystick PC97317 SIO GPCS Geode™ CS9211 Graphics Companion May 2001 Revision 1.1 Geode™ CS5530A I/O Companion Multi-Function South Bridge National Semiconductor and Virtual System Architecture are registered trademarks of National Semiconductor Corporation. Geode, VSA and WebPAD are trademarks of National Semiconductor Corporation. For a complete listing of National Semiconductor trademarks, please visit www.national.com/trademarks. |
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