SC2005 Product OverviewSC2005 Product Overview

DTV Source Applications

Broadband Entertainment Division

July 2001

SC2005 Overview - July 20013-2LSI Logic Confidential™

SC2005 - An Evolutionary ApproachSC2005 - An Evolutionary Approach

SC2005

64X05MPEG-2 A/VDecoder

ProvenLSI STB Technology

SECAMPAL/NTSC

2D Graphics

SC2005 Developed Technology

641X8CPU/ MPEG-2Transport Demux

SC2005 Overview - July 20013-3LSI Logic Confidential™

Previous LSI Solution for STBPrevious LSI Solution for STB

ChannelDecoder1Tuner

AudioDAC

L641x8

EmbeddedTransport with

Analog

I2C Bus

ExpansionBus

AudioSatellite,

Cable,Terrestrial

FromDigital Audio

PeripheralInterfaces

MIPS CPU

L64105

Audio/VideoMPEG-2

Decoder

TSPES

VideoEncoder

Digital Video

Analog Video

GraphicsProcessor

LSI Logic

SC2005 Overview - July 20013-4LSI Logic Confidential™

SC2005 SolutionSC2005 Solution

IEE

E12

84/A

UX

GP

IOP

ins

Infr

ared

Rx

& T

x

FLASH SDRAM-B SDRAM-A

Tuner

OPAMPs

27 MHzVCXO

SC1

Set-Top BoxSingle Chip

Analog

I2C Bus

ExpansionBus

Audio

Analog CVBS

Analog RGB

Digital Video

Sm

art-

Car

ds

RS

232

-CIn

terfa

ce

Analog Y/C

Digital Audio

TSChannelDecoder1

LSI Logic

Mo

dem

CO

DE

C

SC2005Single Chip

Source Decoder

SC2005 Overview - July 20013-5LSI Logic Confidential™

SC2005 FeaturesSC2005 Features

EZ4102 TinyRISC MIPS CPU DVB MPEG-2 Transport A/V Decoder 2D On-Screen Graphics Video Mixer and Encoder Audio DAC Peripherals

UART, SmartCard, 1284, IR, I2C, Teletext, DMA, GPIO

SC2005 Overview - July 20013-6LSI Logic Confidential™

Architectural AdvantagesArchitectural Advantages

SC2005 Addresses Performance Needs by Large on-chip cache memories

8K Direct Map data cache 16K 2-way associative instruction cache

Efficient memory bus system (S-Bus) Separate CPU/OSG and MPEG Video SDRAM bus

Flexible E-Bus architecture interfaces to 8, 16 and 32 bit devices glueless connection to asynchronous and synchronous FLASH

Efficient interrupt structure

SC2005 Overview - July 20013-7LSI Logic Confidential™

SC2005 ClocksSC2005 Clocks

27 MHz VCXO input Internal PLL generates – 27, 54, 81 and 108 MHz

27 MHz AV Decoder and Peripherals

54 MHz B-Bus, E-Bus, Timers, Video subsystems and Transport

81 MHz AV decoder memory – SDRAM-A

108 MHz CPU core CPU/transport/OSG memory – SDRAM-B

SC2005 Overview - July 20013-8LSI Logic Confidential™

SC2005 Block DiagramSC2005 Block Diagram

Channel

EJTAG Port

E-Bus

CPU/OSG/XPT/Periph SDRAM I/F

TinyRISC CPU

Transport Demultiplexer andDVB Descrambler

2 GP Peripheral DMA

Audio/Video Decoder(L64105 core)

VideoMixer and Encoder

On-Screen Graphics

A/V SDRAM I/F

ModemI/F

InfraredSmartCard 1

IEEE1284

SmartCard 0

UART 1TeleText

I2C GPIOUART 0

27 MHzClock

IEE1284 Smart Cards RS232C Telephone I/R RX I/R TX I2C Front Panel

S-Bus

I-Bus

SC2005 Overview - July 20013-9LSI Logic Confidential™

A/V Decoder

Mixer and Encoder

OSG

TinyRISC CPU

Transport

2 GP Peripheral DMA

CPU DataRead/Write

SIData

OSGDisplay

ProgramCache Refill

ExternalPeripherals

ModemI/F

InfraredSmartCard 1

IEEE1284

SmartCard 0

UART 1TeleText

I2C GPIOUART 0

Still PictureDMA

BlockMove

A/VDecode

SDRAM-ASDRAM-B

On-ChipPeripherals

TransportStream

SC2005 Data FlowSC2005 Data Flow

SC2005 Overview - July 20013-10LSI Logic Confidential™

SC2005 MPEG-2 Data FlowSC2005 MPEG-2 Data Flow

TransportMPEG-2transport SDRAM-B

SI data

AV PES

Video plane

OSG planes 4:2:2 Video

Decode &Frame stores

DENC &VDACs

MixerOSG

AV Decoder SDRAM-A

SC2005 Overview - July 20013-11LSI Logic Confidential™

Applications for SC2005Applications for SC2005

Digital Set-top Box PVR – Personal Video Recorder Internet Appliance / Network applications Play from Memory mode

AV Decoder gets its input from SDRAM-B,not Transport

Use AV DMA transfers to move data from SDRAM-B into AV decoder memory in SDRAM-A

SC2005 Overview - July 20013-12LSI Logic Confidential™

No record/playback

Source Decoder

TS Input

D iskDrive

P lay liveP lay Live

PVR basicsPVR basics

SC2005 Overview - July 20013-13LSI Logic Confidential™

PVR basicsPVR basics

Source Decoder

Play live and record sameprogram

Play liveP lay LiveRecordTS Input

D iskDrive

SC2005 Overview - July 20013-14LSI Logic Confidential™

PVR basicsPVR basics

Source Decoder

Pause or Record

TS Input Record P lay liveFreeze or S till

D iskDrive

SC2005 Overview - July 20013-15LSI Logic Confidential™

PVR basicsPVR basics

Play live and record fromanother transponder

Source Decoder

P lay liveP lay Live

Record

TS Input

TS Input

D iskDrive

This mode is NOT supported by SC2005

SC2005 Overview - July 20013-16LSI Logic Confidential™

PVR basicsPVR basics

Source Decoder

Record / Playback

Record

Pla

ybac

k

D iskDrive

TS Input

SC2005 Overview - July 20013-17LSI Logic Confidential™

Data flow for ATA transfersData flow for ATA transfers

SC2005 ATA Interface w ith A/V PES

D em ux A/V D ecoder

AT AH D D

E-Bus / ATAinterface

AudioR ecord

V ideoR ecord

AudioP layback

V ideoP layback

DM

A 1

DM

A 2

DM

A 3

DM

A 4

Aud

io P

ES

Vid

eo P

ES

TS Input

DM

A 6D

MA

5

SDRAMBuffers

SC2005 Overview - July 20013-18LSI Logic Confidential™

Summary of HDD featuresSummary of HDD features

Description Data Format SC2005Support

SC3000Support

Play Live

(No record / playback)

N/A Yes Yes

PES Yes YesPlay Live and RecordSame Program

TS No Yes

PES Yes YesRecord / Playback

(time shift of sameprogram)

TS No Yes

PES No * YesPlay Live and RecordDifferent Program

TS No Yes

* Supported only on same transponder

SC2005 Overview - July 20013-19LSI Logic Confidential™

Play from MemoryPlay from Memory

Transport(not used)

PES and User data

AV PES via AV DMA

Video plane

OSG planes 4:2:2 Video

Decode &Frame stores

DENC &VDACs

MixerOSG

AV Decoder SDRAM-A

SDRAM-B E-Bus