Project by : Sokolik Dmitry

Instructor : Boaz Mizrahi

digital lab

PalCompressor

Compressed

data

I2C

To PCI

16 b

it

Control

Video sampling

Compress unit

output interface

PCI Bus

Au

x. B

us

9080

Local Bus

24.576 MHz

Control unit33.333 MHz

Maximum Compressed Data Rate is 16.67MHz

I2C

8 bit Video BusComposite

PAL

SAA7111SAA7111LPFLPF

24.576 MHz

•LPF - filtering high frequencies to prevent aliasing;

•SAA7111 - Composite Video Decoder

1) Control -- I2C protocol;

2) 24.576 MHz clock.

3) 27 MHz reading rate

4) CCIR-656

PCF8584PCF8584

• ADV601 -- wavelet video encoder ( also decoder ) ;• DRAM -- NEC uPD424210ALE-60 (256Kx16 bit );• ADSP-2181 -- DSP providing algorithm calculations;• Compressed data -- 32 bit bus ( 8 , 16 bit optional ); • Control -- host interface;

ADV601

Data in Compressed Data

ADSP2181DRAM

Control

ADV601 ADSP2181Serial CommunicationBin Width Statistics

Block Diagram Encoding

Local bus arbiter

LHOLD

LHOLDA

Data processing

Local bus

data

PCF8584

interface

I2C

SAA7111

ADV

interface

TO ADV

•Slave

•C bus mode

•Burst mode