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參數(shù)資料

型號(hào)：	BT458LPJ125
英文描述：	Video DAC with Color Palette (RAMDAC)
中文描述：	視頻DAC的調(diào)色板（的RAMDAC）
文件頁(yè)數(shù)：	22/60頁(yè)
文件大?。?/td>	647K
代理商：	BT458LPJ125

2.0 Registers

Bt457/Bt458

2.4 Bt458 Test Register

125 MHz/135 MHz/165 MHz Monolithic CMOS 256 Color Palette RAMDAC

2-4

Conexant

L45801 Rev. N

inputs are contained in the upper four bits, and the lower four bits contain the red,

green, blue, and low or high nibble enable information previously written. Either

the CLOCK must be slowed down to the MPU cycle time, or the same pixel and

overlay data must be presented to the device during the entire MPU read cycle.

For example, to read the upper four bits of red color information being

presented to the D/A converters, the MPU writes to the test register, setting only

the red enable bit. The MPU then reads the test register, keeping the pixel data

stable, which results in D[7:4] containing R[7:4] color bits and D[3:0] containing

red, green, blue, and low or high nibble enable information, as illustrated below:

D[7]

D[6]

D[5]

D[4]

D[3]

D[2]

D[1]

D[0]

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相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
BT458LPJ135	制造商:未知廠家制造商全稱:未知廠家功能描述:Video DAC with Color Palette (RAMDAC)
BT458LPJ165	制造商:未知廠家制造商全稱:未知廠家功能描述:Video DAC with Color Palette (RAMDAC)
BT458LPJ80	制造商:未知廠家制造商全稱:未知廠家功能描述:Video DAC with Color Palette (RAMDAC)
BT471KPJ35-695	制造商:BT 功能描述:
BT471KPJ80	制造商:未知廠家制造商全稱:未知廠家功能描述:Video DAC with Color Palette (RAMDAC)

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