ЦОС_Заочники2013 / Курсовая МПиЦОС 2011 / Справочная информация / TI / TMS 320 / Толковый обзор всего семейства
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TMS320AV120 Block Diagram |
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S/N |
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Boundary scan |
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ICLK |
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Boundary scan |
SMODE |
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Host |
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HSYNC |
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interface |
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ERR_IN |
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SREQ |
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XTAL1 |
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XTAL2 |
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Input |
RAM |
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Reset |
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buffer |
512 x 8 |
Bypass |
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control |
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Mute |
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Audio |
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PCMSEL0 |
Control |
decoder |
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PCMSEL1 |
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and |
AU |
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OMODE0 |
status |
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OMODE1 |
registers |
buffer |
JTAG |
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Arithmetic |
interface |
STATCLK |
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unit |
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STATOUT |
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ANCCLK |
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PCM |
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ANCOUT |
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buffer |
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BOF |
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PCM_ERR |
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PCM |
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PCMCLK |
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output |
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control |
Boundary scan |
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Boundary scan |
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SCLK LRCLK PCMOUT |
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TCK TMS TDI TDO TRST
TMS320AV411/410
The 'AV411 is a digital NTSC/PAL encoder targeted toward the television and consumer electronics markets.(For support of the Macrovision anticopy function, the 'AV410 is available to Macrovision licensees.) Multiple input and output formats are available to the user. Digital RGB and luminance [Y], chrominance-blue [Cb], chrominance-red [Cr] (YCbCr) are two common input options. Y and CbCr can be demultiplexed and delivered through two separate data ports (according to the CCIR601 specification).
Key features of the 'AV411/410:
SInput: RGB or YUV
SOutput: RGB, Y/C (S-video), or composite video
SOn/off-chip synchronized signal generation
SClosed-caption encoding
S16-color overlay with color lookup table for on-screen display
SInterlaced and noninterlaced operation
S100-pin PQFP package
The Leader in DSP Solutions - 182
TMS320AV411/410 Block Diagram
RESET TEST(3:0) EXTEN NTSC |
PHERR |
CLKBIN CLKBOUT |
CLK0 |
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Phase |
1/33 |
VCOIN |
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comparator |
VCO |
RBIAS1 |
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CLK1OUT |
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SYNC signal |
Clock |
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RBIAS0 |
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HSYNC |
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generator |
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VSYNC |
Closed |
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OSCOUT |
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EVEN |
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caption |
OSC |
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OSCIN |
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encoder |
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1/33 |
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CSYNC |
D(7:0) |
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D(15:8) |
Overlay |
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D(23:16) |
RGB to |
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switch |
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OL(3:0) |
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YCbCr/ |
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YCbCr |
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OLC |
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to RGB |
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matrix |
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SETUP |
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IFMOD1 
IFMOD0/0MOD 
AS/CS/INTER 
Control and
SCL/FLTMD host SDA/IMOD1 
interface
SOUT/IMOD0 
CLKSEL 
Blanking
limiter
D/A
D/A
LPF |
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D/A |
LPF |
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Burst |
SINE |
COS |
phase |
GEN |
GEN |
VREF
BIAS0
DAOUT0
COMP0
BIAS1
DAOUT1
COMP1
BIAS2
DAOUT2
COMP2
The Leader in DSP Solutions - 183
TMS320AVxxx Generation Summary
This table gives an 'AVxxx-generation product summary so that you can choose the best combination of performance, memory, power, package, and peripherals for your system.
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TMS320AVxxx Generation Summary Table
Device Name |
Function |
Input Format |
Output Format |
Controller |
Off-Chip |
Package |
Interface |
Memory |
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TMS320AV110 |
MPEG audio decoder |
MPEG audio |
16or 18-bit |
8-bit |
Optional |
120-pin PQFP |
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stream or MPEG |
serial PCM |
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1-MB DRAM |
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system stream |
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TMS320AV120 |
MPEG audio decoder |
MPEG audio |
16or 18bit |
None |
None |
44-pin PLCC |
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stream serial PCM |
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TMS320AV410/ |
Digital NTSC/PAL |
RGB, YUV |
RGB, Y/C (S±vid- |
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100-pin PQFP |
411 |
encoder |
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eo), or composite |
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video |
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The Leader in DSP Solutions - 185
Mixed Signal Products
Digital signal processing solutions (DSPS) are composed of a DSP core, software, system expertise, and a mixed signal product with peripheral devices such as memory and logic used in embedded systems where the DSP is the primary processor.
The following pages include information on mixed signal products that are well suited to provide interfaces for TMS320 DSPs.
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TI Defines DSP Solutions Market
A mixed signal product is one that provides an interface between the digital and the analog world. Digital signal processing solutions can often include a DSP, software, an I/O interface, and mixed-signal products.
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TI Defines DSP Solutions Market
DSPS =
SDSP core + mixed signal + system expertise + software
SEmbedded systems where DSP is the primary processor
DSP
RAM/ROM
core
software
Real world
Mixed signal
signals
Logic and I/O
The Leader in DSP Solutions - 189
Examples of DSP Solutions
Examples of DSP solutions are:
SHard disk drives
SDigital telephone answering devices
SAutomotive audio and suspension systems
SMultimedia
SConsumer audio
SWireless/cellular
One of the best examples is the wireless/cellular solution. Originally, cell telephones were the size and weight of a brick, with talk times of 30 minutes. Now, cellular phones fit in your pocket, weigh less than a pound, and have talk times of three hours. These changes have been made possible because of DSP solutions.
The integration of various functions and features within DSP software, the use of an RF CODEC, and the voice band audio processor have made this progress possible.
The Leader in DSP Solutions - 190