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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HE84760B датащи(PDF) 13 Page - King blillion Electronics Co.,Ltd. |
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HE84760B датащи(HTML) 13 Page - King blillion Electronics Co.,Ltd. |
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13 / 51 page  KING BILLION ELECTRONICS CO., LTD 駿 億 電 子 股 份 有 限 公 司 HE84760B HE80004 Series June 29, 2005 13 V1.0 This specification is subject to change without notice. Please contact sales person for the latest version before use. 8. LCD Display RAM Map The gray-scale LCD driver can be configured to be a 4 gray-scales or black and white display by mask option MO_GRAY_MODE. MO_GRAY_MODE[1..0] Gray levels 00 Not allowed 01 4 10 2 (B/W) 11 2 (B/W) For 4 gray-scale display, 2-bit of RAM is required for each pixel and 1-bit for black and white display. For different LCD configuration, the LCD display RAM is arranged differently. The following figure shows one byte of RAM in different LCD configurations: 0F 0E 0D 0C 0B 0A 09 08 07 06 05 04 03 02 01 00 xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Black/White SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0 4 Gray scales SEG3 SEG2 SEG1 SEG0 The 4 Gray Scale register GRAY0 ~ GRAY3 is the mapping register between the levels selected in RAM and the real gray scale. In other words, if the content of GRAY0 is 0x03, when value of a certain pixel is 0, the displayed effect will correspond to actual gray level 3. The 4 gray scale display utilizes registers GRAY0 ~ GRAY3 to select among 32 gray levels to correspond to level 0 ~ 3. Thus user can pick the gray levels which give the best and most linear effect. 4 Gray Scale registers share a common register address GRAY16. When writing is made to the register, it will step down to next register in order. The writing sequence can be reset by clearing bit 5 of LCDC register. GRAY16 Field Seq. Bit4 Bit3 Bit2 Bit1 Bit0 Reset 1 GRAY0 0x00 2 GRAY1 0x02 3 GRAY2 0x04 4 GRAY3 0x06 |
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