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PCF2119DU/2/2 Datasheet(PDF) 61 Page - NXP Semiconductors |
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PCF2119DU/2/2 Datasheet(HTML) 61 Page - NXP Semiconductors |
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61 / 79 page  PCF2119X_5 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 05 — 13 August 2009 61 of 79 NXP Semiconductors PCF2119x LCD controllers/drivers 16.11 8-bit operation, 2-line display For a 2-line display the cursor automatically moves from the first to the second line after the 40th digit of the first line has been written. Thus, if there are only 8 characters in the first line, the DDRAM address must be set after the 8th character is completed (see Table 41). It should be noted that both lines of the display are always shifted together; data does not shift from one line to the other. Table 41. 8-bit operation, 2-line display example; using external reset (character set ‘A’) Instruction Step RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Display Operation 1 power supply on initialized by the external reset; no display appears 2 Function_set sets to 8-bit operation; selects 2-line display and VLCD generator off 0000110100 3 display mode on/off control turns on display and cursor; entire display is blank after initialization 0000001110 4 Entry_mode_set sets mode to increment the address by 1 and to shift the cursor to the right at the time of write to the CG/DDRAM; display is not shifted 0000000110 5 Write_data to CGRAM/DDRAM writes ‘P’; the DDRAM has already been selected by initialization at power-on; the cursor is incremented by 1 and shifted to the right 1001010000 P 6 to 10 : PHILIP writes ‘HILIP’ 11 Write_data to CGRAM/DDRAM writes ‘S’ 1001010011 PHILIPS 12 Set_DDRAM sets DDRAM address to position the cursor at the head of the 2nd line 0011000000 PHILIPS 13 Write_data to CGRAM/ DDRAM writes ‘M’ 1001001101 PHILIPS M 14 to 18 : PHILIPS MICROC writes ‘ICROC’ 19 Write_data to CGRAM/DDRAM writes ‘O’ 1001001111 PHILIPS MICROCO 20 Write_data to CGRAM/DDRAM sets mode for display shift at the time of write 0000000111 PHILIPS MICROCO 21 Write_data to CGRAM/DDRAM writes ‘M’; display is shifted to the left; the first and second lines shift together 1001001101 HILIPS ICROCOM |
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