參數(shù)資料
型號: SAA5645HL
廠商: NXP Semiconductors N.V.
英文描述: Enhanced TV microcontrollers with On-Screen Display (OSD)(帶全屏顯示的增強型TV控制器)
中文描述: 與微控制器在強化電視屏幕顯示(OSD)(帶全屏顯示的增強型電視控制器)
文件頁數(shù): 65/112頁
文件大?。?/td> 436K
代理商: SAA5645HL
2000 Jun 30
65
Philips Semiconductors
Objective specification
Enhanced TV microcontrollers with
On-Screen Display (OSD)
SAA56xx
23 DISPLAY
The display section (see Fig.24) is based on the
requirements for a Level 1.5 WST Teletext and US Closed
Caption. There are some enhancements for use with
locally generated on-screen displays.
The display section reads the contents of the Display
memory and interprets the control/character codes. From
this information and other global settings, the display
produces the required RGB signals and Video/Data (Fast
Blanking) signal for a TV signal processing device.
The display is synchronized to the TV signal processing
device by horizontal and vertical sync signals from
external circuits (Slave Sync mode). All display timings are
derived from these signals.
The SAA56xx display section incorporates a number of
enhancements over the rest of the SAA55xx family,
including 100 Hz (2H/2V only) operation, two page mode
primarily for 16:9 screens (50 Hz only), increased
DRCS/Special Graphics and a larger Character ROM.
handbook, full pagewidth
MICROPROCESSOR
INTERFACE
DISPLAY
TIMING
HSYNC
VSYNC
CHARACTER
FONT
ADDRESSING
address
data
data
address
address
data
data
address
data
control
to memory interface
from memory interface
PHASE
SELECTOR
FUNCTION REGISTERS
FOR PAGE A AND PAGE B
PAGE B
PARALLEL/SERIAL
CONVERTER WITH
SMOOTHING AND FRINGING
ATTRIBUTE HANDLING
FOR PAGE A AND PAGE B
CLUT RAM
DISPLAY DATA ADDRESSING
FOR PAGE A AND PAGE B
GSA062
CLK
12/24 MHz display
CHARACTER
ROM
AND
DRCs
DATA
BUFFER
DAC
DAC
DAC
G
B
FB
R
Fig.24 Display block diagram.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA5647 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5647HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5665 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5665HL 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD
SAA5667 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Enhanced TV microcontrollers with On-Screen Display OSD