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PCF2113DU/2/F4 数据表(PDF) 52 Page - NXP Semiconductors |
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PCF2113DU/2/F4 数据表(HTML) 52 Page - NXP Semiconductors |
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52 / 65 page ![]() PCF2113_FAM_4 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 04 — 4 March 2008 52 of 65 NXP Semiconductors PCF2113x LCD controllers/drivers 16.5 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 24). It should be noted that both lines of the display are always shifted together; data does not shift from one line to the other. 15 ‘write data’ to CGRAM/DDRAM writes ‘P’; the cursor is incremented by 1 and shifted to the right 1 0 01010000P 16 ‘write data’ to CGRAM/DDRAM writes ‘H’ 1 0 01001000PH 17 : writes ‘ILIPS’ : 22 return home returns both display and cursor to the original position (address 0) 0 0 00000010 PHILIPS Table 23. 8-bit operation, 1-line display and icon example; using internal reset (character set ‘A’) …continued Step Instruction Display Operation RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 Table 24. 8-bit operation, 2-line display example; using internal reset Step Instruction Display Operation RS R/W DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0 1 power supply on (PCF2113x is initialized by the internal reset) initialized; no display appears 2 function set sets to 8-bit operation, selects 1-line display and VLCD = VA 0 0 00110100 3 display control turns on display and cursor; entire display is blank after initialization 0 0 00001110 4 entry mode set sets mode to increment the address by 1 and to shift the cursor to the right at the time of the write to the DDRAM/CGRAM; display is not shifted 0 0 00000110 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 1 0 01010000P 6 to 10 : writes ‘HILIP’ : 11 ‘write data’ to CGRAM/DDRAM writes ‘S’ 1 0 01010011 PHILIPS 12 sets DDRAM address sets DDRAM to position the cursor at the start of the 2nd line 0 0 11000000 PHILIPS |
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