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SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
Display Generator
10 - 8
Micronas
10.3.1
Overlapped Layers
In overlapped layer mode the pixel information of both layers (layer 1, layer 2) is read in
parallel to the RAM. This means that for each pixel the individual decision can be made
which pixel source (layer 1, layer 2, screen background or video) has the highest priority.
Figure 10-3
Priority of Layers in Overlapped Layer Mode
The transparency between layers is supported. Below layer 2 there is layer 1, below
layer 1 there is the screen background colour and below screen background there is
video. In overlapped layer mode a transparency hierarchy is defined for layer 2, layer 1,
screen background and video. The transparency hierarchy is controlled, for each pixel,
by two bits (TR1 … 0) which are defined in the pixel format of the framebuffer and bit
SBTL which is defined in instruction SAR. Thus each pixel position can be defined
individually as layer 1, layer 2, screen background, video or contrast reduced video.
Depending on the transparency bits of both layers, subsequent signals are switched to
the RGB, COR and BLANK (normal polarity assumed) outputs of M2. As a result one of
the two layers or the screen background will be visible on the screen. If layer 2 is not
available for a pixel, signals COR, BLANK and RGB output depends on layer 1 only.
UEA11172
Layer 2
Layer 1
Background Color
Video
Содержание SDA 6000
Страница 3: ...Contents Overview...
Страница 21: ...Pin Description...
Страница 22: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Pin Descriptions 2 3 Micronas 2 Pin Descriptions...
Страница 29: ...Architectural Overview...
Страница 33: ...C16X Microcontroller...
Страница 34: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 C16X Microcontroller 4 3 Micronas 4 C16X Microcontroller...
Страница 88: ...Interrupt and Trap Function...
Страница 122: ...System Control Configuration...
Страница 159: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 System Control Configuration 6 40 Micronas...
Страница 160: ...Peripherals...
Страница 282: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Peripherals 7 124 Micronas...
Страница 283: ...Clock System...
Страница 284: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 3 Micronas 8 Clock System...
Страница 288: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 8 Micronas...
Страница 289: ...Sync System...
Страница 290: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Sync System 9 3 Micronas 9 Sync System...
Страница 301: ...Display Generator...
Страница 302: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 3 Micronas 10 Display Generator...
Страница 348: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 50 Micronas...
Страница 349: ...D A Converter...
Страница 352: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 D A Converter 11 6 Micronas...
Страница 353: ...Slicer and Acquisition...
Страница 354: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Slicer and Acquisition 12 3 Micronas 12 Slicer and Acquisition...
Страница 381: ...Register Overview...
Страница 398: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Register Overview 13 20 Micronas...
Страница 399: ...Elelctrical Characteristics...
Страница 400: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 3 Micronas 14 Electrical Characteristics...
Страница 411: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 14 Micronas...