PCF2113EU datasheet(22/72 Pages) PHILIPS

22 / 72 page

2001 Dec 19

Philips Semiconductors

Product speciﬁcation

LCD controllers/drivers

PCF2113x

7.16

Reset function

The PCF2113x automatically initializes (resets) when power is turned on. The chip executes a reset sequence, including

a ‘clear display’, requiring 165 oscillator cycles. After the reset the chip has the state shown in Table 3.

Table 3

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 Tables 17 and 18

icon control

IM = 0; IB = 0; DM = 0

icons, icon blink and direct

mode disabled

display/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

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