CS5535 Datasheet | National Semiconductor

Description The National Semiconductor® Geode™ CS5535 is a plete I/O panion for an integrated processor North Bridge ponent such as the Geode GX2 processor series. Together, the GX2 and CS5535 provide a systemlevel solution well suited for the high-performance and lowpower 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 panions by use of a single, high-performance modular structure based on Geode Link™ architecture. This architecture yields high internal speed (over 4 GB/s) data movement and extremely versatile internal power management. The Geode Link architecture is transparent to application software. munication with the GX2 processor is over a 33/66 MHz PCI bus. The CS5535 incorporates many I/O functions, including those found in typical Super I/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 management 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 patible codecs such as National’s LM4550. An IR (infrared) port supports all popular IR munication 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 provided to facilitate connections to a Super I/O should additional expansion, such as a floppy drive, be necessary, and/or to an LPC ROM for the system BIOS. Geode™ CS5535 Block Diagram Test/Reset Interface External USB Ports 1-1 & 1-2 External USB Ports 2-1 & 2-2 External Audio Geode Link™ Control Processor (GLCP) USB Controller #1 (USBC1) USB Controller #2 (USBC2) AC97 Controller (ACC) Geode Link™ Interface Unit (GLIU) Geode™ GX2 Interface PCI...