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CS5535-UDC Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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CS5535-UDC Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 555 page  © 2003 National Semiconductor Corporation www.national.com General Description The National Semiconductor® Geode™ CS5535 is a com- plete I/O companion for an integrated processor North Bridge component such as the Geode GX2 processor series. Together, the GX2 and CS5535 provide a system- level solution well suited for the high-performance and low- power needs of a host of information appliances that include digital set-top boxes, personal access devices, and thin client applications. The internal architecture has been greatly simplified over previous I/O companions by use of a single, high-perfor- mance modular structure based on GeodeLink™ architec- ture. This architecture yields high internal speed (over 4 GB/s) data movement and extremely versatile internal power management. The GeodeLink architecture is trans- parent to application software. Communication with the GX2 processor is over a 33/66 MHz PCI bus. The CS5535 incorporates many I/O functions, including those found in typical SuperI/O chips, simplifying many system designs. Since the graphics subsystem is entirely contained in the GX2 processor, system interconnect is simplified. The device contains state-of-the-art power man- agement that enables systems, especially battery powered systems, to significantly reduce power consumption. Audio is supported by an internal controller, designed to connect to multiple AC97 compatible codecs such as National’s LM4550. An IR (infrared) port supports all popu- lar IR communication protocols. The IR port is shared with one of two industry-standard serial ports that can reach speeds of 115.2 kbps. An LPC (low pin count) port is pro- vided to facilitate connections to a SuperI/O should addi- tional expansion, such as a floppy drive, be necessary, and/or to an LPC ROM for the system BIOS. Geode™ CS5535 Block Diagram GeodeLink™ PCI South Bridge Geode™ GX2 Interface PCI GeodeLink™ Control Processor (GLCP) Test/Reset Interface AC97 Controller External Audio ATA-5 Controller USB Controller #1 USB Controller #2 33 or 66 MHz Flash Interface 82xx PC Legacy MFGP Timers RTC & CMOS RAM UART (2) & IR (1) SMB Controller LPC Port Power Mgmnt External USB Ports 1-1 & 1-2 External USB Ports 2-1 & 2-2 GeodeLink™ Interface Unit External IDE/Flash GPIO Diverse Integration Logic (DIVIL) Diverse Device (DD) Low Voltage Detect (LVD) System Power Voltages Power Good for Power On Reset (POR) (GLPCI_SB) (GLIU) (USBC1) (USBC2) (ACC) (ATAC) Preliminary July 2003 Revision 0.8 Geode™ CS5535 I/O Companion Multi-Function South Bridge National Semiconductor and Virtual System Architecture are registered trademarks of National Semiconductor Corporation. Geode, GeodeLink, MacPHYTER, WebPAD, and VSA are trademarks of National Semiconductor Corporation. For a complete listing of National Semiconductor trademarks, please visit www.national.com/trademarks. |
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