參數(shù)資料
型號(hào)： μSAP70300-B03
廠商： NEC Corp.
元件分類： 8位微控制器
英文描述： 8 Bit Single Chip Microcontrollers
中文描述： 8位單片機(jī)微控制器
文件頁(yè)數(shù)： 69/102頁(yè)
文件大?。?/td> 282K
代理商： ΜSAP70300-B03
59
CHAPTER 2 LIBRARY SPECIFICATIONS
Table 2-18. VRAM Setting Members
Member
Explanation
VRAM_W_Pixel
Number of pixels in horizontal direction of assumed image
VRAM_H_Pixel
Number of pixels in vertical direction of assumed image
VRAM_Line_Byte
Number of bytes equivalent to VRAM address difference of one pixel in vertical direction
VRAM_Pixel_Byte
Number of bytes equivalent to VRAM address difference of one pixel in horizontal
direction
VRAM_Gap1_Byte
YCbCr:
Number of bytes equivalent to VRAM address difference of Y and Cb components of
same pixel
RGB:
Number of bytes equivalent to VRAM address difference of R and G components of
same pixel
VRAM_Gap2_Byte
YCbCr:
Number of bytes equivalent to VRAM address difference of Y and Cr components of
same pixel
RGB:
Number of bytes equivalent to VRAM address difference of R and B components of
same pixel
Setting Example
[VRAM specification]
[Setting member of JPEGINFO structure variable]
Number of horizontal pixels of assumed image : 320
x.VRAM_W_Pixel
= 320 ;
Number of vertical pixels of assumed image
: 240
x.VRAM_H_Pixel
= 240 ;
Number of horizontal bytes of VRAM
: 0x3C0
x.VRAM_Line_Byte
= 0x3C0 ;
Mode
: YCbCr
x.VRAM_Pixel_Byte
= 3 ;
1 pixel
: 3 bytes
x.VRAM_Gap1_Byte
= 1 ;
Y = Cb = Cr = 1 byte/continuous
x.VRAM_Gap2_Byte
= 2 ;
JPEGINFO structure variable
: x
–>
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