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CS1311 bảng dữ liệu(PDF) 3 Page - National Semiconductor (TI) |
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CS1311 bảng dữ liệu(HTML) 3 Page - National Semiconductor (TI) |
3 / 25 page Revision 2.2 3 www.national.com 1.0 System Architecture The CS1301/CS1311 multimedia companion acts as a coprocessor to decode multimedia in National’s Geode SC1200/SC1201, SC2200, and SC3200 (SCx200 unless otherwise specified). Figure 1-1 provides a typical system block diagram. Media decoding is one of the most demanding system applications. If media is decoded on the main processor, a much higher performance processor is required to achieve even comparable levels of media decoding quality. Such a system would be significantly over-designed for other tasks, such as browsing the Internet. Using a low-cost pro- cessor that is ideally suited for all tasks, and adding the coprocessor for the high performance media decoding requirement, results in a cost-effective solution. Another advantage of an processor/coprocessor solution is that an OEM (Original Equipment Manufacturer) can pro- vide a scalable solution. A single board can be designed that supports the coprocessor. If it is desired to support a low-end product that does not support the high quality media decoding capabilities, the coprocessor and its sup- porting components can be excluded from the system, which results in additional savings in an already cost-effec- tive design. 1.1 IMPORTANT DESIGN NOTE The CS1301/CS1311 was designed to be a general pur- pose media data processor. As such, the CS1301/CS1311 is capable of far more than the current National CS1301/CS1311 solution. The solution that National is pro- viding is only one possible implementation of the CS1301/CS1311 and only this implementation is fully sup- ported by National Semiconductor. In order to maintain software compatibility with National’s provided software, any deviation of the CS1301/CS1311 section of the sche- matic is strongly discouraged. For those wishing to deviate from the schematic, or wishing to take advantage of other features of the CS1301/CS1311, documentation is available on the Philips Semiconductors SDE CD-ROM to support design varia- tions. However, additional support to implement these vari- ations must be obtained from one of the TriMedia Alliance Partners who support the CS1301/CS1311, its software, and the peripheral functions. For a list of TriMedia Alliance Partners, visit: http://www.trimedia.com/TAPP/ Figure 1-1. System Block Diagram Sub-ISA USB 1,2,3 Flash or M-Systems’ DiskOnChip Display: TV, CRT, or TFT SDRAM PCI Bus AMP LM4880 Codec LM4549 XpressROM BIOS IRDA IDE CompactFlash CCIR 656 VIP WM8725 DAC GeodeTM CS1301/ CS1311 GeodeTM SCx200 SDRAM EEPROM |
Số phần tương tự - CS1311 |
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Mô tả tương tự - CS1311 |
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