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参数资料
| 型号： | AC164127-7 |
| 厂商： | Microchip Technology |
| 文件页数： | 12/34页 |
| 文件大小： | 0K |
| 描述： | BOARD DISPLAY CTLR PLUS S1D13517 |
| 特色产品： | AC164127-7 Graphics Controller |
| 标准包装： | 1 |
| 系列： | PICtail™ Plus |
| 主要目的： | 显示器，LCD 控制器 |
| 已用 IC / 零件： | S1D13517 |
| 主要属性： | 与 PIC32 入门套件和 Explorer 16 开发板一起使用 |
| 已供物品： | 板 |
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AN1368
Display Orientation
Displays are available in Landscape (e.g., 320x240) or
Portrait (e.g., 240x320) modes. A landscape display
can also be used in Portrait mode by setting a 90°
rotate function in the graphics library or display
controller. Similarly, a portrait display can also be used
in Landscape mode. If rotating the pixels is
implemented by special hardware features inside the
graphics controller, there is no penalty on the
performance. However, if the rotation is performed in
software (such as the graphics library used), there is a
penalty in the software performance. This is because
for every (x, y) point, a new rotated (x’, y’) point has to
be calculated, which takes away some of the
Color Depth Selection
Along with the resolution of the display, the correct
choice of color depth is another decision factor since
this determines the size of the frame buffer (cost of
RAM). If natural photos are being displayed, it is better
to go with 16 BPP or higher. If 256 different colors are
enough for the application, then a color depth of 8 BPP
can be chosen (with the standard 256 colors provided
by the display controller or custom 256 colors using
(CLUT)” ). This would reduce the RAM requirement by
50%, compared to 16 BPP. If only 16 or 4 different
colors are sufficient, 4 BPP or 2 BPP can be used,
saving the RAM by 75% and 87.5%, respectively, as
processing power.
compared to 16 BPP.
Note the difference in the RGB strip alignment if the
display is used in Rotated mode, as shown in
requirements for different color depths.
FIGURE 14:
TABLE 3:
LANDSCAPE AND PORTRAIT DISPLAYS USED IN LANDSCAPE MODE
RAM SIZE REQUIREMENT FOR DIFFERENT COLOR DEPTHS
BPP for QVGA (320x240)
Number of Colors
RAM Size (Bytes)
16 BPP
65,536
153,600
8 BPP
256
76,800
4 BPP
16
38,400
2 BPP
4
19,200
DS01368A-page 12
? 2011 Microchip Technology Inc.
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相关代理商/技术参数 |
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| AC164127-8 | 功能描述:子卡和OEM板 Graph Display Truly 5.7" 640x480 Board RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| AC164127-9 | 功能描述:子卡和OEM板 Graphics Display 7" 800x480 Board RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| AC164128 | 功能描述:子卡和OEM板 dsPICDEM Motor Cntrl PICtail Plus RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
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| AC164130 | 功能描述:网络开发工具 ECAN/LIN PICtail Plus Daughter Board RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
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