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AS8267 Datasheet(PDF) 56 Page - ams AG |
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AS8267 Datasheet(HTML) 56 Page - ams AG |
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56 / 136 page  Data Sheet AS8267 / AS8268 Revision 1.0, 19-Jun-07 Page 56 of 136 LCD Display Data Select Register (USE_REG, 921Eh) The use_reg register selects either Data Register 1 or Data Register 2 for display on the LCD. Select ‘0’ for Data Register 1 and ‘1’ for Data Register 2. MSB LSB - - - - - - - use_reg LCD Voltage Select Register (SELVLCD, 921Fh) The LCD voltage select register, SELVLCD enables variation of the LCD contrast by selecting on of the 8 pre- set voltage levels. MSB LSB - - - - - selvlcd.2 selvlcd.1 selvlcd.0 Bit Symbol Function 7 - Not used 6 - Not used 5 - Not used 4 - Not used 3 - Not used Bit2 Bit1 Bit0 VLCD 0 0 0 2.5V 2 selvlcd.2 0 0 1 2.5714V 0 1 0 2.6428V 0 1 1 2.7142V 1 selvlcd.1 1 0 0 2.7856V 1 0 1 2.8570V 1 1 0 2.9284V 0 selvlcd.0 These bits set the LCD voltage level for the LCD contrast setting. 1 1 1 3.0V LCD Power-Down (LCDD_PD, 9220h) The lcdd_pd register enables the analog part of the LCDD to be powered-down. Select ‘0’ for LCD display on and ‘1’ for LCD display off. MSB LSB - - - - - - - lcdd_pd |
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