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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF8534AHL/1 датащи(PDF) 27 Page - NXP Semiconductors |
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PCF8534AHL/1 датащи(HTML) 27 Page - NXP Semiconductors |
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27 / 47 page  PCF8534A_5 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 05 — 6 August 2009 27 of 47 NXP Semiconductors PCF8534A Universal LCD driver for low multiplex rates [1] The bank select command has no effect in 1:3 or 1:4 multiplex drive modes. [1] Only normal blinking can be selected in multiplexer 1:3 or 1:4 drive modes. 8.4 Display controller The display controller executes the commands identified by the command decoder. It contains the status registers of the PCF8534A and coordinates their effects. The controller also loads display data into the display RAM as required by the storage order. Table 13. Bank select command bit description See Section 7.10, Section 7.11, Section 7.12, Section 7.13 and Section 7.14. Bit Symbol Value Description Static 1:2 multiplex[1] 7 to 2 - 11 1110 fixed value 1I input bank selection: storage of arriving display data 0 RAM bit 0 RAM bits 0 and 1 1 RAM bit 2 RAM bits 2 and 3 0O output bank selection: retrieval of LCD display data 0 RAM bit 0 RAM bits 0 and 1 1 RAM bit 2 RAM bits 2 and 3 Table 14. Blink select command bit description See Section 7.15. Bit Symbol Value Description 7 to 3 - 1 1110 fixed value 2A blink mode selection 0 normal blinking[1] 1 blinking by alternating display RAM banks 1 to 0 BF[1:0] blink frequency selection 00 off 01 1 10 2 11 3 |
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