PCF8531U2DA datasheet(44/51 Pages) NXP

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PCF8531

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Product data sheet

Rev. 6 — 16 May 2011

44 of 51

NXP Semiconductors

PCF8531

34 x 128 pixel matrix driver

1000

0000

control byte; Co = 1; RS = 0

0000

0001

H[1:0] independent

command; select function

and RAM command page

H[1:0] = 00

1000

0000

control byte; Co = 1; RS = 0

0000

1001

function and RAM command

page; select display setting

command page H[1:0] = 01

1000

0000

control byte; Co = 1; RS = 0

0000

0001

H[1:0] independent

command; select function

and RAM command page

H[1:0] = 00

1000

0000

control byte; Co = 1; RS = 0

0000

1101

display control; set inverse

video mode (D = 1; E = 1

and IM = 0)

1000

0000

control byte; Co = 1; RS = 0

1000

0000

set X address of RAM; set

address to ‘0000000’

0100

0000

control byte; Co = 0; RS = 1

0000

data write

Table 17.

Programming example for PCF8531 …continued

Step

Serial bus byte

Display

Operation

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

mgs411

mgs412

mgs414

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