PCF8576DTSLASH2 datasheet(24/57 Pages) NXP

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PCF8576D

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Product data sheet

Rev. 14 — 10 June 2013

24 of 57

NXP Semiconductors

PCF8576D

Universal LCD driver for low multiplex rates

7.12 Command decoder

The command decoder identifies command bytes that arrive on the I2C-bus. The

commands available to the PCF8576D are defined in Table 10.

[1]

Not used.

All available commands carry a continuation bit C in their most significant bit position as

shown in Figure 19. When this bit is set logic 1, it indicates that the next byte of the

transfer to arrive will also represent a command. If this bit is set logic 0, it indicates that

the command byte is the last in the transfer. Further bytes will be regarded as display data

(see Table 11).

Table 10.

Definition of PCF8576D commands

Command

Operation code

Reference

Bit

mode-set

-[1]

M[1:0]

Table 12

load-data-pointer

P[5:0]

Table 13

device-select

110

0A[2:0]

Table 14

bank-select

Table 15

blink-select

BF[1:0]

Table 16

Table 11.

C bit description

Bit

Symbol

Value

Description

continue bit

last control byte in the transfer; next byte will be regarded

as display data

control bytes continue; next byte will be a command too

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