PCF8545ATT datasheet(4/48 Pages) NXP

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PCE85176AUG

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Product data sheet

Rev. 1 — 12 January 2015

4 of 48

NXP Semiconductors

PCE85176AUG

4 × 40 LCD segment driver for Chip-On-Glass

Functional description

The PCE85176AUG is a versatile peripheral device designed to interface between any

microcontroller to a wide variety of LCD segment or dot matrix displays (see Figure 9). It

can directly drive any static or multiplexed LCD containing up to four backplanes and up to

40 segments.

7.1 Commands of PCE85176AUG

The commands available to the PCE85176AUG are defined in Table 5.

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

shown in Figure 22. 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 are regarded as display data

(see Table 6).

Table 5.

Definition of PCE85176AUG commands

Bit position labeled as - is not used.

Command

Operation Code

Reference

Bit

mode-set

M[1:0]

Table 8

load-data-pointer

P[5:0]

Table 10

initialize-RAM

110

0000

Table 12

bank-select

Table 14

blink-select

BF[1:0]

Table 16

Table 6.

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 as

well

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