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參數(shù)資料
| 型號： | TVP3010-135 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Hardware Cursor, GAMMA Correction VIP(135MHz,高/寬光標(biāo)，伽馬校正，視頻接口調(diào)色板) |
| 中文描述： | 硬件光標(biāo)，伽瑪校正貴賓（135MHz，高/寬光標(biāo)，伽馬校正，視頻接口調(diào)色板） |
| 文件頁數(shù)： | 27/100頁 |
| 文件大?。?/td> | 571K |
| 代理商： | TVP3010-135 |
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2–13
(8-bit bus), 2:1 (16-bit bus), or 4:1 (32-bit bus). Therefore, in a 32-bit configuration, a 1024-by-768 pixel
screen can be implemented with an external data rate of only 16 MHz.
NOTE:
If externally clocked frame-buffer timing is used (ACR3 = logic 0, see
Section 2.3.2), only multiplex ratios of 1:1 can be used. See Table 2–6.
The auxiliary window, port select, and color-key switching functions must be
disabled and set for palette graphics when in the pseudo-color mode. This is the
default condition at reset. See Section 2.6
2.4.4
In direct-color mode, 24, 16, 15, or 12 bits of data can be transferred directly to the RGB DACs but with the
same amount of pipeline delay as the overlay data and the control signals (blank and SYNCs). Depending
on which direct-color mode is selected, overlay is provided by utilizing the remaining bits of the pixel bus
to address the palette RAM. This results in a 24-bit RAM output that is then used as overlay information to
the DACs. The overlay capability is designed to work with the auxiliary window, port select, and color-key
switching functions to provide overlay in specific windows or on a pixel-by-pixel basis on the direct-color
display as discussed in Section 2.6. See Tables 2–6, 2–8, and 2–9 for more details on selecting the
direct-color modes.
Direct-Color Mode
The default condition after reset is for the auxiliary window and port select functions to be disabled
(ACR1 = ACR2 = logic 0). The color-key comparisons, which are controlled by the color-key control (CKC)
register bits 0–3, are also disabled (CKC0 = CKC1 = CKC2 = CKC3 = logic 0). Also, since multiplex-control
register 2 bit 7 = logic 1 and ACR0 = CKC4 = logic 1 at reset, the default is for VGA pass through. This is
because multiplex-control register 2 bit 7 enables the VGA port and the switching functions
(switch = color key = 1, see Section 2.6) are disabled and set for palette graphics (as opposed to direct
color-palette bypass).
Submode 1 is the 24-bit direct-color mode that uses eight bits to represent each color and eight bits for
overlay. In this mode, there are basically two different configurations: either the 32-bit data is grouped as
overlay, red, green, blue, or blue, green, red, overlay.
Submode 2 is the XGA-compatible (5–6–5) 16-bit-color mode supporting five bits of red, six bits of green,
and five bits of blue data. The TVP3010 supports multiplex ratios for this mode of 1:1 and 2:1. With 2:1
multiplexing, the TVP3010 can display 1024x768 direct-color using 45-MHz VRAM without any glue logic.
Overlay is not available in this mode.
Submode 3 is the TARGA-compatible (5–5–5) mode that uses 15 bits for color and 1 bit for overlay. It allows
5 bits for each of red, green, and blue data. The TVP3010 supports 1:1 and 2:1 multiplexing ratios in this
mode.
Submode 4 is (6–6–4) configuration. It provides six bits of red, six bits of green, and four bits of blue. The
TVP3010 also supports 1:1 and 2:1 multiplexing in this mode. Overlay is not available in this mode.
Submode 5 is (4–4–4–4) configuration. It provides 12 bits of direct color and 4 bits of overlay. It allows four
bits for each of red, green, and blue data. The TVP3010 supports 1:1 and 2:1 multiplexing ratios in this mode.
See NOTES in the following section.
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PDF描述 |
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| TVP3010C | Video Interface Palette |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TVP3010-135FN | 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) |
| TVP3010-135MGA | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TVP3010-135MGAB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TVP3010-170FN | 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) |
| TVP3010-85FN | 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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