參數(shù)資料
型號： TVP3025-135
廠商： Texas Instruments, Inc.
英文描述： Video Interface PALETTE(三PLL，視頻接口調色器)
中文描述： 視頻接口盒（三鎖相環(huán)，視頻接口調色器）
文件頁數(shù)： 21/99頁
文件大?。?/td> 663K
代理商： TVP3025-135
2–7
2.3
In general, the TVP3025 is a superset of the TVP3020, with several advanced features. These features and
other differences are discussed in the appropriate description sections and highlighted in Section 2.3.17.
Circuit Description Using TVP3025 Register Map
2.3.1
The 8/6 terminal is used to select between an 8- or 6-bit wide data path to the color palette RAM and is
provided in order to maintain compatibility with the IMSG176. If miscellaneous-control register bit 2 is set
to logic 1, then the 8/6 terminal is disabled and 8/6 operation is specified by bit 3 of the miscellaneous-control
register. The TVP3020 mode reset default is for the 8/6 terminal to be enabled (miscellaneous-control
register bit 2 = logic 0).
MPU Interface-8/6 Operation
2.3.2
The TVP3020 mode of the device defines a palette-page register as an 8-bit register on the indexed register
map. When using 1, 2, or 4 bit planes in the pseudo color modes, the additional planes are provided from
the page register before the data addresses the color palette. This is illustrated in Table 2–4.
Color Palette – Palette-Page Register
NOTE:
The additional bits from the page register are inserted after the read mask.
The palette-page register specifies the additional bit planes for the overlay field in
direct-color modes with less than 8 bits per pixel overlay.
This register should be set to 00 (hex) before reentering the BT485 mode if it has
been modified.
Table 2–4. Allocation of Palette-Page Register Bits
NUMBER OF BIT PLANES
MSB
PALETTE ADDRESS BITS
LSB
8
M
M
M
M
M
M
M
M
4
P7
P6
P5
P4
M
M
M
M
2
P7
P6
P5
P4
P3
P2
M
M
1
P7
P6
P5
P4
P3
P2
P1
M
Pn = n bit from page register
M = bit from pixel port
2.3.3
The TVP3025 VIP provides a maximum of four clock inputs. Two are dedicated as TTL inputs; the other two
can be selected as either one differential ECL input or two extra TTL inputs. The TTL inputs can be used
for video rates up to 140 MHz. The dual-mode clock input (ECL/TTL) is primarily an ECL input but can be
used as TTL-compatible inputs if the input-clock-selection register is so programmed. The clock source
used at power up is CLK0; an alternative source can be selected by software during normal operation. This
chosen clock input can be used unmodified as the dot clock (representing pixel rate to the monitor).
Alternatively, if the input-clock-selection register is programmed to use the internal frequency doubler, the
chosen clock source is used as a reference for multiplication.
Input Clock Selection
The input-clock-selection register is used to select the desired input clock source. Table 2–5 details how to
program the various options.
相關PDF資料
PDF描述
TVP3025-175 Video Interface PALETTE(三PLL，視頻接口調色器)
TVP3030-175 Video Interface PALETTE Exract(1600×1200，24位真彩色視頻接口調色器)
TVP3030-220 Video Interface PALETTE Exract(1600×1200，24位真彩色視頻接口調色器)
TVP3030-250 Video Interface PALETTE Exract(1600×1200，24位真彩色視頻接口調色器)
TVP3409-170 Advanced Video Interface PALETTE(雙PLL，視頻接口調色器真彩色CMOS)
相關代理商/技術參數(shù)
參數(shù)描述
TVP3025-135PCE 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3025-175PCE 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3025-220MDN 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
TVP3025-220PCE 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)
TVP3026 制造商:TI 制造商全稱:Texas Instruments 功能描述:Video Interface Palette
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*