3
•
Display buffer unit
Reads data to be displayed on the CRT from the display-side frame buffer, and outputs the
display data in accordance with the display timing.
•
Color palette (6 bits per color, 64 gradation settings)
When using 8 bits/pixel, performs conversion to display data of 256 colors out of 262,144,
based on the color conversion table.
• ∆
YUV (YUV): RGB conversion
Converts input data
∆
YUV (260,000 colors) or YUV (260,000 colors) to RGB data (60,000
colors), and stores it in the UGM.
•
RGB-YCrCb conversion
Converts RGB data (60,000 colors) to YCrCb data (60,000 colors), and outputs the data.
Memory interface unit
Chip
manager
CLK0
CLK1
DCLK
HSYNC
/
EXHSYNC
VSYNC
/
EXVSYNC
DD0–DD17
18
MD0–MD15
16
CONTROL
6
MA0–MA11
12
RESET
CONTROL
A1–A22
22
D0–D15
16
9
CPU interface unit
DMA control
∆
YUV
→
RGB conversion
YUV
→
RGB conversion
Rendering buffer unit
Display buffer unit
Color palette (256 colors)
Rendering unit
Display unit
RGB
→
YCrCb conversion
CPG0
CPG1
CPU data bus
CPU address bus
Memory data bus
Memory address bus
I/O buffer
I/O buffer
I/O buffer
Figure 1-2 Internal Block Diagram
Содержание HD64411 Q2
Страница 17: ...10 ...
Страница 31: ...24 ...
Страница 108: ...101 Example 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 110: ...103 Example Old XC YC Old XC XC old YC YC 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 112: ...105 Example 0 0 Work coordinates Rendering coordinates XO1 YO1 XO1 DX2 YO1 DY2 XO1 DX1 YO1 DY1 LINE ...
Страница 116: ...109 Example 0 0 Work coordinates Rendering coordinates XMIN YMIN XMAX YMAX ...
Страница 118: ...111 Example 0 0 Work coordinates Rendering coordinates XMAX YMAX ...
Страница 120: ...113 Example 0 0 Work coordinates XMIN YMIN XMAX YMAX ...
Страница 129: ...122 ...
Страница 167: ...160 ...
Страница 179: ...172 ...
Страница 213: ...206 Figure 7 20 TV Sync Mode Display Timing When DOT 0 or DOT 1 and EXHSYNC cycle is even multiple of CLK1 cycle ...