PCF8562 datasheet(22/44 Pages) PHILIPS

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PCF8562

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Product data sheet

Rev. 6 — 16 June 2011

22 of 43

NXP Semiconductors

PCF8562

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 PCF8562 are defined in Table 9.

[1]

Not used.

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

shown in Figure 18. When this bit is set, it indicates that the next byte of the transfer to

arrive will also represent a command. If this bit is reset, it indicates that the command byte

is the last in the transfer. Further bytes will be regarded as display data (see Table 10).

Table 9.

Definition of PCF8562 commands

Command

Operation code

Reference

Bit

mode-set

-[1]

M[1:0]

Table 11

load-data-pointer

P[4:0]

Table 12

device-select

110

0A[2:0]

Table 13

bank-select

Table 14

blink-select

BF[1:0]

Table 15

Table 10.

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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