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CS1311

更新时间： 2024-10-28 04:12:35

品牌	Logo	应用领域
美国国家半导体 - NSC		商用集成电路
页数	文件大小	规格书
25页	315K
描述
Media Coprocessor

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数据手册

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CS1311 数据手册

Preliminary

August 2002

Revision 2.2

Geode™ CS1301/CS1311 Multimedia Companion:

Media Coprocessor

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.

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.

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

Additionally, since the architecture is designed for decoding

media, fewer CS1301/CS1311 cycles are required.

Internal Block Diagram

32-Bit Data

(up to 664 MB/sec)

SDRAM

Main Memory Interface

CCIR-656 Digital Video

YUV 4:2:2 up to 81 MHz

(40 Mpix/sec)

CCIR-656 Digital Video

Video In

Audio In

Video Out

Audio Out

S/PDIF Out

2/4/6/8 Ch. Digital Audio

16/32-Bit Data I²S DC,

up to 22 MHz AO_SCK

Stereo Digital Audio

8/16-bit data I²S DC,

up to 22 MHz AI_SCK

VLD

Coprocessor

IEC958 up to 40 Mbit/sec

Huffman Decoder

Slice-At-A-Time

MPEG-1 & 2

ACCESS.bus Interface

to EEPROM

ACCESS.bus

Interface

Timers

32K I$

Image

VLIW

Coprocessor

CPU

16K D$

Down and Up Scaling

YUV --> RGB

(50 Mpix/sec)

PCI Interface

External Bus

PCI V2.1 (32 bits, 33 MHz)

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.

www.national.com

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与CS1311相关器件

型号	品牌	获取价格	描述	数据表
CS131-H	COTO	获取价格	Transistor Output SSR
CS134	COTO	获取价格	Contact Form: 1a Load Voltage: 200V Maximum
CS135	COTO	获取价格	Contact Form: 1a Load Voltage: 80V Maximum
CS136	COTO	获取价格	Contact Form: 1a Load Voltage: 60V Maximum
CS136-H	COTO	获取价格	Transistor Output SSR
CS137	COTO	获取价格	Contact Form: 1a Load Voltage: 60V Maximum
CS-137	ETC	获取价格
CS138	COTO	获取价格	Contact Form: 1a Load Voltage: 600V Maximum
CS139	COTO	获取价格	MAXIMUM RATINGS, ELECTRICAL SPECIFICATIONS
CS-139-2	ETC	获取价格

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