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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCA9620 датащи(PDF) 10 Page - NXP Semiconductors |
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PCA9620 датащи(HTML) 10 Page - NXP Semiconductors |
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10 / 71 page  PCA9620 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved. Product data sheet Rev. 1 — 9 December 2010 10 of 71 NXP Semiconductors PCA9620 Universal LCD driver for low multiplex rates 7.1.12 Bank select commands For multiplex drive modes 1:4, 1:2 and static drive mode, it is possible to write data to one area of the RAM whilst displaying from another. These areas are named as RAM banks. Input and output banks can be set independently from one another with the input-bank-select and the output-bank-select command. For further information see Section 7.9.2 on page 46. 7.1.12.1 Command: input-bank-select [1] Not applicable for multiplex drive mode 1:6 and 1:8. [2] Default value. 7.1.12.2 Command: output-bank-select [1] Not applicable for multiplex drive mode 1:6 and 1:8. [2] Default value. Table 18. Input-bank-select - input bank select command bit description[1] Bit Symbol Value Description 7 to 3 - 00001 fixed value 2 to 0 IB[2:0] selects RAM bank to write to static drive mode 1:2 drive mode 1:4 drive mode 000[2] bank 0: RAM-row 0 bank 0: RAM-rows 0 and 1 bank 0: RAM-rows 0, 1, 2, and 3 001 bank 1: RAM-row 1 010 bank 2: RAM-row 2 bank 2: RAM-rows 2 and 3 011 bank 3: RAM-row 3 100 bank 4: RAM-row 4 bank 4: RAM-rows 4 and 5 bank 4: RAM-rows 4, 5, 6, and 7 101 bank 5: RAM-row 5 110 bank 6: RAM-row 6 bank 6: RAM-rows 6 and 7 111 bank 7: RAM-row 7 Table 19. Output-bank-select - output bank select command bit description[1] Bit Symbol Value Description 7 to 3 - 00010 fixed value 2 to 0 OB[2:0] selects RAM bank to read from to the LCD static drive mode 1:2 drive mode 1:4 drive mode 000[2] bank 0: RAM-row 0 bank 0: RAM-rows 0 and 1 bank 0: RAM-rows 0, 1, 2, and 3 001 bank 1: RAM-row 1 010 bank 2: RAM-row 2 bank 2: RAM-rows 2 and 3 011 bank 3: RAM-row 3 100 bank 4: RAM-row 4 bank 4: RAM-rows 4 and 5 bank 4: RAM-rows 4, 5, 6, and 7 101 bank 5: RAM-row 5 110 bank 6: RAM-row 6 bank 6: RAM-rows 6 and 7 111 bank 7: RAM-row 7 |
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