PCF2113DUSLASH2SLASHF4 datasheet(24/65 Pages) NXP

24 / 65 page

PCF2113_FAM_4

Product data sheet

Rev. 04 — 4 March 2008

24 of 65

NXP Semiconductors

PCF2113x

LCD controllers/drivers

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.

[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.

Table 8.

State after reset

Step

Function

Control bit state

Conditions

clear display

entry mode set

I/D = 1

+1 (increment)

S = 0

no shift

display control

D = 0

display off

C = 0

cursor off

B = 0

cursor character blink off

function set

DL = 1

8-bit interface

M = 0

1-line display

H = 0

normal instruction set

SL = 0

MUX 1:18 mode

default address pointer

to DDRAM

the Busy Flag (BF) indicates

the busy state (BF = 1) until

initialization ends

the busy state lasts 2 ms; the chip

may also be initialized by software;

see Table 26 (8-bit interface) and

Table 27 (4-bit interface).

icon control

IM = 0; IB = 0; DM = 0

icons, icon blink and Direct mode

disabled

display or screen

conﬁguration

L = 0; P = 0; Q = 0

default conﬁgurations

8VLCD temperature

coefﬁcient

TC1 = 0; TC2 = 0

default temperature coefﬁcient

set VLCD

VA = 0; VB = 0

VLCD generator off

I2C-bus interface reset

set HVgen stages

S1 = 1; S0 = 0

VLCD generator voltage multiplier

set at factor 4

Table 9.

Instruction set for I2C-bus commands

I2C-bus

commands

Control byte

Command byte

I2C-bus

commands

[1]

Co[2] RS

000000

DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0

[1]

PCF2113DU/2/F4 数据表(PDF) 24 Page - NXP Semiconductors

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