RM0319 datasheet(290/368 Pages) STMICROELECTRONICS

поискавой системы для электроныых деталей

RM0319 датащи(PDF) 290 Page - STMicroelectronics

номер детали	RM0319

подробное описание детали	SPEAr320S architecture and functionality

PDF	368 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

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290 / 368 page

JPEG codec accelerator (JPGC)

RM0319

290/368

Doc ID 022640 Rev 3

26.4.4

FIFO buffers

These two First-in First-out buffers have a word width of 32 bits, and a depth of 8 words.

FIFOs are used by the Codec Controller to bufferize the flow of data incoming to (FIFO In)

and outcoming from (FIFO out) the Codec Core. Each FIFO is accessed by reading/writing

always from/to the same address.

26.4.5

Internal memories

These memories have to be programmed, before the encoding process can start, with the

tables needed by the baseline JPEG algorithm (see ISO/IEC 10918-1).

Up to four quantization tables are used for both encoding and decoding. DHTMem and

HuffEnc memories are used for encoding. HuffMin, HuffBase and HuffSymb memories are

used for decoding.

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