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CS1311 bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI) |
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CS1311 bảng dữ liệu(HTML) 1 Page - National Semiconductor (TI) |
1 / 25 page © 2002 National Semiconductor Corporation 1 www.national.com General Description The National Semiconductor® Geode™ CS1301 and CS1311 multimedia companions act as coprocessors to decode multimedia in National’s Geode single chip proces- sor-based systems (i.e., SC1200/SC1201, SC2200, and SC3200, hereafter referred to as SCx200). They provide a multimedia experience for an Information Appliance (IA) user that cannot typically be achieved on a PC. By implementing a dedicated coprocessor to perform multi- media tasks, a high quality video viewing experience can be achieved. This high quality is achieved by having a coprocessor architecture that is ideally suited for decoding digital media. In addition, since the decoding is not occur- ring on the SCx200, system events cannot interrupt the coprocessor’s task of decoding media and thereby causing stuttering of sound or interruptions in the video. Lower power consumption can also be achieved using the SCx200/CS1301 or SCx200/CS1311 solution. The CS1301/CS1311 has an architecture specifically designed for decoding media. The architecture is such that while decoding media, power is not consumed by portions of the system that are not used to decode media. Since the SCx200 is not decoding the media locally, it is able to go into a lower power state. When the CS1301/CS1311 is not decoding media, it uses almost no power. Additionally, since the architecture is designed for decoding media, fewer CS1301/CS1311 cycles are required. Internal Block Diagram 2/4/6/8 Ch. Digital Audio 16/32-Bit Data I2SDC, up to 22 MHz AO_SCK IEC958 up to 40 Mbit/sec Huffman Decoder Slice-At-A-Time MPEG-1 & 2 CCIR-656 Digital Video 32-Bit Data (up to 664 MB/sec) Down and Up Scaling YUV --> RGB (50 Mpix/sec) PCI V2.1 (32 bits, 33 MHz) External Bus ACCESS.bus Interface to EEPROM Video In SDRAM PCI Interface Video Out Audio In Audio Out S/PDIF Out ACCESS.bus Interface VLD Coprocessor Timers VLIW CPU 32K I$ 16K D$ Image Coprocessor Main Memory Interface Stereo Digital Audio 8/16-bit data I2SDC, up to 22 MHz AI_SCK CCIR-656 Digital Video YUV 4:2:2 up to 81 MHz (40 Mpix/sec) Preliminary August 2002 Revision 2.2 Geode™ CS1301/CS1311 Multimedia Companion: Media Coprocessor National Semiconductor and Virtual System Architecture are registered trademarks of National Semiconductor Corporation. Geode, MacPHYTER, WebPAD, and VSA are trademarks of National Semiconductor Corporation. For a complete listing of National Semiconductor trademarks, please visit www.national.com/trademarks. |
Số phần tương tự - CS1311 |
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Mô tả tương tự - CS1311 |
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