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參數(shù)資料
| 型號： | VPX3214C |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Video Pixel Decoders |
| 中文描述： | 視頻解碼器像素 |
| 文件頁數(shù)： | 79/80頁 |
| 文件大?。?/td> | 752K |
| 代理商： | VPX3214C |
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VPX 3220 A, VPX 3216 B, VPX 3214 C
PRELIMINARY DATA SHEET
MICRONAS INTERMETALL
79
3. Low power mode
In order to accommodate power consumption critical ap-
plications, low power mode is introduced. It can be
turned on and off through the I
2
C register 0xAA. There
are three levels of low power. When any of them is
turned on, VPX waits for at least one complete video
scan line in order to complete all internal tasks and then
goes into three-state mode. The exact moment is not
precisely defined, so care should be taken to deactivate
the system using VPX data before the end of the video
scan line in which VPX is switched into low power mode.
During the low power mode all the I
2
C and FP registers
are preserved, so that VPX restores its normal operation
as soon as low power mode is turned off without need for
any reinitialization. On the other hand all the I
2
C and FP
registers can be read / written as usual. The only excep-
tion is the third level (value of 3 in I
2
C register 0xAA) of
low power. In that mode, I
2
C speeds above 100 kbit/sec
are not allowed. In modes 1 and 2, I
2
C can be used up
to the full speed of 400 kbit/sec.
I
2
C Reg.
Address
Number
of Bits
Mode
Function
Name
AA
8
w
Low power
bit [1:0] : Low power
00
01
10
11
active mode
outputs three–stated; clock divided by 2; I
2
C full speed
outputs three–stated; clock divided by 4; I
2
C full speed
outputs three–stated; clock divided by 8; I
2
C only up to 100 kbit/sec
lowpow
The control register modes are
– w: write/read register
– d: register is double latched
– A: register is available only in VPX 3220 A; VPX 3216 B returns valid ACK, although no internal action is performed
– r:
– v: register is latched with vsync
read-only register
The mnemonics used in the Intermetall VPX demo software are given in the last column.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VPX3224D | Video Pixel Decoders |
| VPX3224E | Video Pixel Decoders |
| VPX322XE | Video Pixel Decoders |
| VQ1000J | N-Channel Enhancement-Mode MOSFET Transistor(最小漏源擊穿電壓60V,夾斷電流0.225A的N溝道增強型MOSFET晶體管) |
| VQ1000J | N-Channel 60-V (D-S) MOSFET |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VPX3214C(PLCC44) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Decoder Circuit |
| VPX3214C(QFP44) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Decoder Circuit |
| VPX3216B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video Pixel Decoders |
| VPX3216B(PLCC44) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Decoder Circuit |
| VPX3216B(QFP44) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Decoder Circuit |
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