參數(shù)資料
型號(hào): VPX3224D
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(yè)數(shù): 22/92頁(yè)
文件大?。?/td> 672K
代理商: VPX3224D
PRELIMINARY DATA SHEET
VPX 3225D, VPX 3224D
22
Micronas
2.7.2. Half Clock Mode
For applications demanding a low bandwidth for the
transmission between video decoder and graphics con-
troller, the clock signal qualifying the output pixels
(PIXCLK) can be divided by 2. This mode is enabled by
setting Bit 5 of the FP-RAM 0x150 [halfclk]. Note that the
output format ITU-R601 must be selected. The timing of
the data and clock signals in this case is described in Fig-
ure 2–25.
If the half-clock mode is enabled, each second pulse of
PIXCLK is gated. PIXCLK can be used as a qualifier for
valid data. To ensure that the video data stream can be
spread, the selected number of valid output samples
should not exceed 400.
Chrominance
(Port B)
VACT
LLC
C
1
C
n–1
C
n
Luminance
(Port A)
Y
1
Y
n–1
Y
n
PIXCLK
Fig. 2–23:
Output timing in single clock mode
Video
(Port A)
VACT
LLC
C
1
C
n–1
C
n
PIXCLK
Y
1
Y
n–1
Y
n
Fig. 2–24:
Output timing in double clock mode
Chrominance
(Port B)
VACT
LLC
Luminance
(Port A)
Y
1
Y
n
PIXCLK
C
1
C
n
Fig. 2–25:
Output timing in half clock mode
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參數(shù)描述
VPX3224D-C3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microprocessor
VPX3224E 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Pixel Decoders
VPX3225D 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video Pixel Decoders
VPX3225D-C3 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microprocessor
VPX3225E 制造商:MICRONAS 制造商全稱:MICRONAS 功能描述:Video Pixel Decoders