PCA9620 datasheet(8/71 Pages) NXP

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PCA9620

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Product data sheet

Rev. 1 — 9 December 2010

8 of 71

NXP Semiconductors

PCA9620

Universal LCD driver for low multiplex rates

[1]

Default value.

7.1.7 Command: display-enable

[1]

Default value.

7.1.8 Command: set-MUX-mode

[1]

Default value.

7.1.9 Command: set-bias-mode

[1]

Default value.

7.1.10 Command: load-data-pointer

The load-data-pointer command defines one of the 60 display RAM addresses where the

following display data will be sent to. For further information, see Section 7.9.1 on

page 41.

Table 11.

Set-VPR-LSB - set VPR LSB command bit description

Bit

Symbol

Value

Description

7 to 4

0101

fixed value

3 to 0

VPR[3:0]

0000[1] to 1111 the four least significant bits of VPR[7:0]

Table 12.

Display-enable - display enable command bit description

Bit

Symbol

Value

Description

7 to 1

0011100

fixed value

0[1]

display disabled;

backplane and segment outputs are internally

connected to VSS

display enabled

Table 13.

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

Bit

Symbol

Value

Description

7 to 3

00000

fixed value

2 to 0

M[2:0]

000[1], 011,

110, 111

1:8 multiplex drive mode: 8 backplanes

001

static drive mode: 1 backplane

010

1:2 multiplex drive mode: 2 backplanes

100

1:4 multiplex drive mode: 4 backplanes

101

1:6 multiplex drive mode: 6 backplanes

Table 14.

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

Bit

Symbol

Value

Description

7 to 2

110001

fixed value

1 to 0

B[1:0]

00[1], 01

⁄

4 bias

⁄

3 bias

⁄

2 bias

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