PCF2113EU Просмотр технического описания (PDF) - NXP Semiconductors.

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PCF2113EU

LCD controllers/drivers

NXP Semiconductors. 

NXP Semiconductors

PCF2113x

LCD controllers/drivers

Table 8. State after reset

Step Function

Control bit state

Conditions

1

clear display

2

entry mode set

I/D = 1

+1 (increment)

S=0

no shift

3

display control

D=0

display off

C=0

cursor off

B=0

cursor character blink off

4

function set

DL = 1

8-bit interface

M=0

1-line display

H=0

normal instruction set

SL = 0

MUX 1:18 mode

5

default address pointer the Busy Flag (BF) indicates the busy state lasts 2 ms; the chip

to DDRAM

the busy state (BF = 1) until may also be initialized by software;

initialization ends

see Table 26 (8-bit interface) and

Table 27 (4-bit interface).

6

icon control

IM = 0; IB = 0; DM = 0

icons, icon blink and Direct mode

disabled

7

display or screen

configuration

L = 0; P = 0; Q = 0

default configurations

8

VLCD temperature

coefficient

TC1 = 0; TC2 = 0

default temperature coefficient

9

set VLCD

VA = 0; VB = 0

10 I2C-bus interface reset

VLCD generator off

11 set HVgen stages

S1 = 1; S0 = 0

VLCD generator voltage multiplier

set at factor 4

9. Instructions

Only two PCF2113x registers, the Instruction Register (IR) and the Data Register (DR),

can be directly controlled by the microcontroller. Before internal operation, control

information is stored temporarily in these registers to allow interfacing to various types of

microcontrollers which operate at different speeds or to allow interfacing to peripheral

control ICs.

The instruction set for I2C-bus commands is given in Table 9. Section 11.2.1 discusses

how these control and command bytes are embedded in the I2C-bus protocol.

Table 9. Instruction set for I2C-bus commands

I2C-bus

Control byte

commands

[1]

Co[2] RS 0 0 0 0 0 0

Command byte

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

I2C-bus

commands

[1]

[1] R/W is set together with the slave address.

[2] For explanation, see Table 11.

The PCF2113x operation is controlled by the instructions shown in Table 10 together with

their execution time. Details are explained in subsequent sections.

PCF2113_FAM_4

Product data sheet

Rev. 04 — 4 March 2008

© NXP B.V. 2008. All rights reserved.

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