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參數(shù)資料
| 型號： | TLC34076M-135 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Color-Palette(135MHz,與TLC34075兼容，另具24位和16位真彩色模式) |
| 中文描述： | 顏色調(diào)色板（135MHz，與TLC34075兼容，另具24位和16位真彩色模式） |
| 文件頁數(shù)： | 23/57頁 |
| 文件大?。?/td> | 456K |
| 代理商： | TLC34076M-135 |
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2–7
and Regular Shift-Register Transfer
SCLK Between Split Shift-Register Transfer
SCLK
at Input Pin
PIXEL DATA
at Input Pin
BLANK
of Pixel Data
Latch Last Group
of Pixel Data
Latch First Group
1st Group of Pixel Data
Group
2nd 3rd
Group
4th
Group
5th
Group
6th
Group
Last
VCLK
SFLAG/NFLAG
BLANK
(internal signal
before dot-clock
pipeline delay)
LOAD
(internal signal
for data latch)
Figure 2–5. SCLK/VCLK Control Timing (SSRT Enabled,
SCLK Frequency = 4
×
VCLK Frequency)
Multiplexing Scheme
The TLC34076M offers a highly versatile multiplexing scheme as illustrated in Table 2–6. The on-chip
multiplexing allows the system to be reconfigured to the amount of RAM available. For example, if only
256K bytes of memory are available, an 800-by-600 mode with four bit planes (four bits per pixel) could be
implemented using an 8-bit-wide pixel bus. If, at a later date, another 256K bytes are added to another eight
bits of the pixel bus, the user has the option of using eight bit planes at the same resolution or 4 bit planes
at a 1024-by-768 resolution. When an additional 512K bytes are added to the remaining 16 bits of the pixel
bus, the user has the option of eight bit planes at 1024-by-768 or four bit planes at 1280 by 1024. All the
above can be achieved without any hardware modification and without any increase in the speed of the pixel
bus.
2.4.1
VGA Pass-Through Mode
Mode 0, the VGA pass-through mode, is used to emulate the VGA modes of most personal computers. The
advantage of this mode is that the TLC34076M can take data presented on the feature connectors of most
VGA-compatible PC systems into the device on a separate bus, thus requiring no external multiplexing. This
feature is particularly useful for systems in which the existing graphics circuitry is on the motherboard. In
this instance, it enables implementation of a drop-in graphics card that maintains compatibility with all
existing software by using the on-board VGA circuitry but routing the emerging bit-plane data through the
TLC34076M. This is the default mode at power up. When the VGA pass-through mode is selected after the
device is powered up, the clock-selection register, the general-control register, and the pixel read-mask
register are set to their default states automatically.
2.4
Since this mode is designed with the feature connector philosophy, all the timing is referenced to CLK0,
which is used by default for the VGA pass-through mode. For all the other normal modes, CLK<0:3> are
the oscillator sources for the internal dot clock, VCLK, and SCLK; all the data and control timing is referenced
to SCLK.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TLC34077 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette Data Manual |
| TLC34077135FN | 制造商:TI 功能描述:* |
| TLC352 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LinCMOSE DUAL DIFFERENTIAL COMPARATOR |
| TLC352CD | 功能描述:校驗器 IC Dual Differential RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| TLC352CDG4 | 功能描述:校驗器 IC Dual Low Vltg LinCMOS Differential RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
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