3 Enhanced. YGV627 Datasheet
AVDP3E - Advanced Video Display processor 3 Enhanced
|Total Page||16 Pages|
Advanced Video Display processor 3 Enhanced
YGV627 is a VDP (Video Display Processor) that realizes higher resolution, multi-color and high speed drawing
by adopting a synchronous DRAM as the video memory, while maintaining the register compatibility with
YGV617B that is used for controlling the high minuteness On Screen Display (OSD).
Since the device is capable of displaying bitmap images with various resolutions ranging from NTSC to SVGA on
the monitors with any size of screen including wide screen, it can be used for controlling OSD for various display
units. Also, it is capable of representation of varied images in accordance with the application because numerous
number of colors can be selected such as the one in the range from 16 to 65536 RGB color display, or natural image
display using YCbCr.
In addition, the existing system can be up-graded easily thanks to the basic features from YGV617B such as a high
speed drawing function, character drawing function, synchronization with external video signal, digital video input /
output function, and hardware cursor display function.
YGV627 is capable of selecting two modes by using the setting of ENH pin.
For convenience, the case of using ENH pin with LOW level (enabled) is referred to as “expansion mode” in this
document. In the expansion mode, all the functions can be used.
The case of using ENH pin with HIGH level (disabled) is referred to as “compatibility mode”. In the compatibility
mode, the software compatibility with YGV617B is maintained, but the functions enhanced for YGV617B cannot
be used. These modes should be used in accordance with the purpose of the application of this device.
q Three screen configuration including bitmap screen, sprite cursor screen and external input video screen
(or single color border screen)
q Monitor synchronization frequency, dot clock frequency, and display screen resolution can be specified optionally.
q Display dot clock up to 40 MHz (Example of resolution: NTSC, PAL, VGA, SVGA, NTSC wide, and VGA wide)
q Support with progressive scanning and interlaced scanning
q Resolution of sprite cursor screen is 32 X 32 dots. (The sprite cursor can also be used as cross-hair line cursor.)
q Smooth hardware scroll function
q Upper / lower two division display on the bitmap screen (The two sections can be scrolled independently).
q 256 word X 16 bit CLUT is built-in (The number of display colors of 32768 colors or 65536 colors can be selected.)
q Display colors: 16 palette color, 256 palette color, 32768 RGB color, 65536 RGB color, YCbCr422 (ITU601)
q YCbCr (ITU601) -to-8 bit RGB decoder is built-in.
q α blending function that mixes with external input screen or single color border screen. (64 intensity levels)
q Dot clock generation with built-in PLL circuit
q Generates dot clock that synchronizes with HSYNC of external video signal.
q Generates dot clock that synchronizes with external input clock. (such as sub-carrier clock)
CATALOG No.: LSI-4GV627A2
Block transfer by word (CPU to VRAM, VRAM to CPU, VRAM to VRAM)
Font drawing, dot drawing and rectangular drawing.
q Drawing attribute Sets drawing clip area, drawing offset or drawing page, and designates bit mask, color mask,
logical operation (NOT, AND, OR, EOR etc.), or direction of transfer.
q System clock (clock for drawing system):
q Dot clock (clock for display system):
up to 33 MHz
up to 40 MHz
q 16 bit or 8 bit asynchronous interface
q Provided with a video memory space up to 8M bytes and internal register space of 128 bytes.
q The video memory space and internal register space can be mapped indirectly with 16 byte registers.
q Built-in data buffer for memory space access and built-in data FIFO for drawing commands
q CPU interruption based on various conditions of display and drawing
q DMA transfer of drawing command data can be made when connected with external DMA controller
[Video memory interface]
q Connected memory:
16M bit SDRAM (512k words X 16 bits X 2 banks) 1 piece
or 64M bit SDRAM (1M words X 16 bits X 4 banks) 1 piece
q SDRAM clock:
up to 66 MHz (System clock multiplied by 2 or 4)
q Built-in FIFO for display data improves the drawing access efficiency and realizes high speed drawing.
q Analog RGB output with built-in DAC (8 bits for RGB individually)
q Digital video input / output (6 bits for RGB individually)
q Equipped with sub-carrier clock output, dot clock output, sync signal output, YS and attribute output pins.
q Package: 176LQFP (YGV627-V)
q CMOS, 3.3V single power supply
q Operating temperature range: −40 to +85 °C
For YGV627, Application Manual that details the specifications of the device and the evaluation board
(MSY627DB01) are available in addition to this brochure.
The evaluation board is equipped with an SDRAM of 8 MB as a video memory. A high performance system can
be realized when it is used with Hitachi’s CPU board, Super H Solution Engine.
The device driver provided by Yamaha and attached to the evaluation board
consists of the main body of the driver and API related layers, allowing the
user to build it into the system easily according to the environment.
For the details of these products, inquire of the sales agents or our business
For CPU board, inquire of: Hitachi ULSI Systems Co., Ltd.
|Features||Datasheet pdf YGV627 AVDP3E Advanced Video Display pro cessor 3 Enhanced s OUTLINE YGV627 is a VDP (Video Display Processor) that rea lizes higher resolution, multi-color an d high speed drawing by adopting a sync hronous DRAM as the video memory, while maintaining the register compatibility with YGV617B that is used for controll ing the high minuteness On Screen Displ ay (OSD). Since the device is capable o f displaying bitmap images with various resolutions ranging from NTSC to SVGA on the monitors with any size of screen including wide screen, it can be used for controlling OSD for various display units. Also, it is capable of represen tation of varied images in accordance w ith the application because numerous nu mber of colors can be selected such as the one in the range from 16 to 65536 R GB color display, or natural image disp lay using YCbCr. In addition, the exist ing system can be up-graded easily than ks to the basic features from YGV617B s uch as a high speed drawing function, character drawing functio.|
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