- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄369516 > BT458LPJ125 Video DAC with Color Palette (RAMDAC) PDF資料下載
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） |
| 文件頁數(shù)： | 40/60頁 |
| 文件大?。?/td> | 647K |
| 代理商： | BT458LPJ125 |
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頁當(dāng)前第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頁第56頁第57頁第58頁第59頁第60頁
4.0 Application Information
Bt457/Bt458
4.5 Initializing the Bt457 (Monochrome)
125 MHz/135 MHz/165 MHz Monolithic CMOS 256 Color Palette RAMDAC
4-8
Conexant
L45801 Rev. N
4.5 Initializing the Bt457 (Monochrome)
Following a power-on sequence, the Bt457 must be initialized. If the clock/LD*
sequence is controlled to reset the pipeline delay of the Bt457 to a fixed pipeline
delay of eight clock cycles, this initialization sequence must be performed after
the reset sequence. The command register must also be reinitialized when the
multiplex selection changes (e.g., from 4:1 to 5:1 input multiplexing).
This sequence configures the Bt457 as follows:
4:1 Multiplexed Operation
No Overlays
No Blinking
Color data written/read every cycle
Control Register Initialization
Write $04 to address register
Write $FF to read mask register
Write $05 to address register
Write $00 to blink mask register
Write $06 to address register
Write $40 to command register
Write $07 to address register
Write $00 to test register
Color Palette RAM Initialization
Write $00 to address register
Write data to RAM (location $00)
Write data to RAM (location $01)
:
Write data to RAM (location $FF)
Overlay Color Palette Initialization
Write $00 to address register
Write data to overlay (location $00)
Write data to overlay (location $01)
:
Write data to overlay (location $03)
C1,C0
00
10
00
10
00
10
00
10
00
01
01
:
01
00
11
11
:
11
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| BT458LPJ135 | Video DAC with Color Palette (RAMDAC) |
| BT458LPJ165 | Video DAC with Color Palette (RAMDAC) |
| BT458LPJ80 | Video DAC with Color Palette (RAMDAC) |
| BT457KG125 | Video DAC with Color Palette (RAMDAC) |
| BT457KG80 | Video DAC with Color Palette (RAMDAC) |
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) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。