- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370991 > M65727FP (Mitsubishi Electric Corporation) MPEG2 MOTION ESTIMATION LSI PDF資料下載
參數(shù)資料
| 型號： | M65727FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | MPEG2 MOTION ESTIMATION LSI |
| 中文描述： | 大規(guī)模集成電路的MPEG2運動估計 |
| 文件頁數(shù)： | 22/55頁 |
| 文件大小： | 242K |
| 代理商： | M65727FP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁當(dāng)前第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁
DISTRIBUTION RESTRICTED. COPYRIGHT RESERVED 1995
CONTACT MITSUBISHI ELECTRONICS REGARDING DISTRIBUTION
22
4.3.4 Output Request
M65727 is capable of outputting the result of operation independently and in parallel with the
arithmetic operation of the motion estimation. The output data is output by asserting OREQC, the
output request signal.
The output data becomes invalid when the RESET cycle occurs before during the motion estimation
operation, or when ESYNC signal is asserted with the space less than the minimum number of execution
cycle (550 / 806 cycles) before the output data becomes valid. Moreover, the space between ESYNC
and OREQC must be at least 30 cycles.
The output port uses tri-state output. This is activated by asserting OEC, the output enable signal.
Fig. 4.3.4-1 shows the output operation.
4.3.5 Activation of Execution Cycle
The execution cycle of M65727 is activated by ESYNC, the execution sync signal. The minimum
number of cycles for one execution cycle depends on the vertical search range. When the vertical
search range is ±7.5, 550
is required. When it is ±15.5, 806
is required. It is necessary to assert
ESYNC using an interval greater than the above minimum cycle.
It is necessary to input the search window image data, the template MB data, and the dynamic control
information within the execution cycle activated by one SYNC signal. It is not allowed to input the
above across ESYNC's.
Fig. 4.3.5-1 shows how the execution cycle is activated.
4.3.6 Dynamic Control Input
M65727 allows the control information to be input independent of and parallel to the arithmetic
operation of the motion estimation. The dynamic control information is input by repeated assertion of
DSYNC
The control data input must be completed within one execution cycle and at least 10 cycles or more
space is needed between ESYNC and DSYNC. As long as this limitation is obeyed, the dynamic
control information can be input in parallel with the search window image data and the actual operation
of the motion estimation operation.
Fig. 4.3.6-1 shows the dynamic control input operation.
4.3.7 Number of Cycles Needed (from Data Input to Data Output)
The number of cycles needed depends on the operating modes. The minimum number of cycles
needed for one execution cycle (from the assertion of one ESYNC to the assertion of next ESYNC)
depends on the vertical search range. When the vertical search range is ±7.5, 550 cycles are needed;
when it is ±15.5, 806 cycles are needed. When the Field/Frame Dual-Prime mode is used, the
minimum cycles will be 550 cycles.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M65824FP | SIGNAL PROCESSOR FOR CD PLAYER WITH BUILT-IN D/A |
| M65824AFP | CD PLAYER DIGITAL SIGNAL PROCESSOR WITH BUILT-IN DAC |
| M65849BFP | SINGLE CHIP SURROUND PROCESSOR |
| M658489BFP | SINGLE CHIP SURROUND PROCESSOR |
| M65849 | SINGLE CHIP SURROUND PROCESSOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M65761FP | 制造商:Mitsubishi Electric 功能描述:SPECIALTY MICROPROCESSOR CIRCUIT, PQFP100 |
| M65762FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:QM-Coder |
| M65790FP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:FBTC IMAGE DATA COMPRESSION and DECOMPRESSION LSI |
| M65817AFP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:Digital Amplifier Processor of S-Master Technology |
| M65818AFP | 制造商:Renesas Electronics Corporation 功能描述:M65818AFP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。