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參數(shù)資料
| 型號(hào)： | TVP3010M |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Video Interface Palette |
| 中文描述： | 視頻接口面板 |
| 文件頁數(shù)： | 7/90頁 |
| 文件大小： | 491K |
| 代理商： | TVP3010M |
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1–1
1 Introduction
The TVP3010C and the TVP3010M palettes are commercial and military versions, respectively, of an
advanced Video Interface Palette (VIP) from Texas Instruments implemented in the EPIC
0.8-micron
CMOS process. Differences between the two versions are outlined in separate tables. In both versions,
maximum flexibility is provided by the pixel multiplexing scheme. The scheme accommodates 64-, 32-, 16-,
8-, and 4-bit pixel buses without any circuit modification. This enables the system to be easily reconfigured
for varying amounts of available video RAM. The device supports selection of little- or big-endian data format
for the pixel-bus/frame-buffer interface. Data can be split into 1, 2, 4, or 8 bit-planes for pseudo-color mode
or split into 12-, 16- or 24-bit true-color and direct-color modes. For the 24-bit direct-color modes, an 8-bit
overlay plane is available. The 16-bit direct-color and true-color modes can be configured to IBM XGA
(5, 6, 5), TARGA
(5, 5, 5, 1), or (6, 6, 4) as another existing format. An additional 12-bit mode (4, 4, 4, 4)
is supported with 4 bits for each color and overlay. An on-chip, IBM XGA-compatible hardware cursor is
incorporated so that further increases in graphics-system performance are possible. Both devices are
software compatible with the INMOS
IMSG176/8 and Brooktree
Bt476/8 color palettes.
An internal-frequency doubler is incorporated, allowing convenient and cost-effective clock-source
alternatives to be utilized. An auxiliary windowing function and a pixel-port select function are provided so
that overlay or VGA graphics can be displayed on top of direct color inside or outside a specified auxiliary
window. Color-keyed switching of direct color and overlay is also supported.
Clocking is provided through one of five TTL inputs, CLK0–CLK4, and is software selectable. Additionally,
CLK1/CLK2 and CLK3/CLK4 can be selected as differential ECL clock sources. The video, shift-clock, and
reference-clock outputs provide a software-selected divide ratio of the chosen clock input. The reference
clock can optionally be provided as an output on CLK3, and a data-latch clock can optionally be input on
CLK4.
The TVP3010C and the TVP3010M have three 256
digital-to-analog converters (DACs) capable of directly driving a doubly-terminated 75-
line. The lookup
tables are designed with a dual-ported RAM architecture that enables ultra-high speed operation. Sync
generation is incorporated on the green output channel. Horizontal sync and vertical sync are fed through
the device and optionally inverted to indicate screen resolution to the monitor. A palette-page register
provides the additional bits of palette address when 1, 2, or 4 bit-planes are used. This allows the screen
colors to be changed with only one microprocessor-interface unit (MPU) write cycle.
8 color look-up tables with triple 8-bit video
Each device features a separate VGA bus that allows data from the feature connector of most
VGA-supported personal computers to be fed directly into the palette without the need for external data
multiplexing. This allows a replacement graphics board to remain downwards compatible by utilizing the
existing graphics circuitry often located on the motherboard.
Both the TVP3010 VIP and the TVP3010M VIP are highly system integrated. Either device can be
connected to the serial port of a VRAM device without external buffer logic and each device can be
connected to many graphics engines directly. The split shift register transfer function, which is supported
by VRAM, is also supported by the TVP3010C and TVP3010M.
The system-integration concept is carried to manufacturing testing and field diagnosis levels. To support
these testing and diagnostic levels, several highly-integrated test functions have been designed to enable
simplified testing of the palette, the graphics board, and the graphics system.
EPIC is a trademark of Texas Instruments Incorporated.
XGA is a registered trademark of International Business Machines Corporation.
TARGA is a registered trademark of Truevision Incorporated.
INMOS is a trademark of INMOS International Limited.
Brooktree is a trademark of Brooktree Corporation.
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| TVP3020 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette |
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| TVP3020-135PCE | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
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| TVP3020-175PCE | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette |
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