PCF8537 datasheet(12/82 Pages) NXP

12 / 82 page

PCF8537

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Product data sheet

Rev. 1 — 31 May 2012

12 of 82

NXP Semiconductors

PCF8537

Industrial LCD driver for multiplex rates up to 1:8

8.1.9 Command: Set-MUX-mode

The multiplex drive mode is configured with the bits described in Table 13.

[1]

Default value.

8.1.10 Command: Set-bias-mode

The Set-bias-mode command allows setting the bias level.

[1]

Not applicable for static drive mode.

[2]

Default value.

8.1.11 Command: Load-data-pointer

The Load-data-pointer command defines the display RAM address where the following

display data will be sent to.

Table 13.

Set-MUX-mode - set multiplex drive mode command bit description

For further information, see Section 8.4.5 on page 31.

Bit

Symbol

Binary value

Description

7 to 3

00000

fixed value

2 to 0

M[2:0]

000[1]

011

101

111

1:8 multiplex drive mode

8 backplanes and 44 segments

110

1:6 multiplex drive mode

6 backplanes and 46 segments

100

1:4 multiplex drive mode

4 backplanes and 44 segments

010

1:2 multiplex drive mode

2 backplanes and 44 segments

001

static drive mode

1 backplane and 44 segments

Table 14.

Set-bias-mode - set bias mode command bit description

For further information, see Section 8.4.5 on page 31.

Bit

Symbol

Binary value

Description

7 to 2

110001

fixed value

1 to 0

B[1:0]

LCD bias configuration[1]

00[2]

1⁄4 bias

1⁄3 bias

1⁄2 bias

Table 15.

Load-data-pointer - load data pointer command bit description

For further information, see Section 8.8 on page 44.

Bit

Symbol

Binary value

Description

7 to 6

fixed value

5 to 0

P[5:0]

000000 to

101101

RAM address

6-bit binary value of 0 to 45

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