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參數(shù)資料
| 型號： | TMS320AV220 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Video CD MPEG Decoder(視頻CD MPEG編碼器) |
| 中文描述： | 視頻CD MPEG解碼器（視頻光盤的MPEG編碼器） |
| 文件頁數(shù)： | 8/31頁 |
| 文件大?。?/td> | 612K |
| 代理商： | TMS320AV220 |
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TMS320AV220
VIDEO CD MPEG DECODER
SCSS016A – JUNE 1994 – REVISED JANUARY 1996
8
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
architecture
The TMS320AV220 is based on the C-Cube CL450 core with significant additional functionality as shown in
Figure 1. While the video processing is done by the ’450 core, all user interaction is through a simplified user
interface consisting of 14 control registers. The control logic automatically initializes all other registers and loads
microcode from internal ROM into DRAM after each reset. This control philosophy was adopted to ensure ease
of operation in a consumer environment.
Audio/video synchronization is done independently by both the video processor and the companion
TMS320AV120 MPEG audio decoder. They both perform synchronization using the system clock reference
(SCR) and presentation time stamp (PTS) in the MPEG-1 system stream either by delaying presentation or by
skipping forward as needed. No user interaction is required for synchronization.
Host Interface
and
Control
RESET
CS
MREQ
WAIT
RD
WR
ADDR13–
ADDR0
DATA7–
DATA0
NTSC
INT
TEST1
TEST0
Clock
Generator
SYSCLK
Compressed Data Interface
CDATA7–CDATA0
CDEN
CDWAIT
CDREAD
CDSEL
CDERROR
System Decoder
Data
Formatter
Microcode
and
Macrodata
ROM
Audio-
Memory
Controller
Audio
Buffer
4K x 9
’AV120
Interface
ASOUT
ICLK
ARESET
SMODE
SREQ
MUTE
Interface
and
Code FIFO
CPU
Pixel Filter
and
Motion
Compensator
Decode
and
VLC FIFO
DRAM
Controller
MA9–MA0
MD15–MD0
RAS1
RAS0
UCAS
LCAS
UCASIN
LCASIN
WE
Video-Display
Unit
HSYNC
VSYNC
VOE
VCLK
CL450 Core
PD23–PD0
Figure 1. Functional Block Diagram
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PDF描述 |
|---|---|
| TMS320AV410 | Digital NTSC/PAL Encoder(數(shù)字NTSC/PAL編碼器) |
| TMS320AV411 | Digital NTSC/PAL Encoder(數(shù)字NTSC/PAL編碼器) |
| TMS320AV420 | Digital NTSC Encoder(數(shù)字NTSC編碼器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TMS320AV220PCM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio/Video Decoder for MPEG |
| TMS320AV410 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Encoder Circuit |
| TMS320AV410PJM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TMS320AV411 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Encoder Circuit |
| TMS320AV411PJM | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
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