參數(shù)資料
型號(hào)： EP7211
廠商： Cirrus Logic, Inc.
英文描述： HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
中文描述： 高性能超低功耗系統(tǒng)與LCD控制器芯片
文件頁數(shù)： 65/166頁
文件大?。?/td> 2623K
代理商： EP7211
EP7211
High-Performance Ultra-Low-Power System-on-Chip with LCD Controller
65
Functional Description
DS352PP3
JUL 2001
Figure 3-9. Video Buffer Mapping
shows the organization of the video map for all combinations
of bits per pixel.
Figure 3-9. Video Buffer Mapping
The refresh rate is not affected by the number of bits per pixel; however the LCD controller fetches
twice the data per refresh for 4-bits-per-pixel compared to 2-bits-per-pixel. The main reason for
reducing the number of bits per pixel is to reduce the power consumption of the memory where the
video frame buffer is mapped.
Pixel 1 Pixel 2 Pixel 3 Pixel 4
Bit 0 Bit 1
Bit 2 Bit 3 Bit 4
4 Bits per pixel
Bit 5 Bit 6 Bit 7
Grey scale
Pixel 1 Pixel 2 Pixel 3 Pixel 4
Bit 0
Bit 1 Bit 2 Bit 3 Bit 4
2 Bits per pixel
Bit 5 Bit 6 Bit 7
Grey scale Grey scale
Pixel 1 Pixel 2 Pixel 3 Pixel 4
Bit 0 Bit 1 Bit 2
1 Bit per pixel; in the Standby State
Bit 3 Bit 4
Bit 5 Bit 6 Bit 7
Grey scale
Grey scale
Pixel 1 Pixel 2 Pixel 3 Pixel 4
Bit 0 Bit 1
1 Bit per pixel; in the normal Operating State
Bit 2 Bit 3 Bit 4
Bit 5 Bit 6 Bit 7
Grey scale
Grey scale
Grey scale Grey scale
Grey scale
相關(guān)PDF資料
PDF描述
EP7211-CP-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7211-CV-A HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7212 HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CB-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
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EP7211-CP-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
EP7211-CV-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE ULTRA-LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER
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