PCF8536AT datasheet(9/74 Pages) NXP

9 / 74 page

PCF8536

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Product data sheet

Rev. 2 — 21 February 2012

9 of 74

NXP Semiconductors

PCF8536

Universal LCD low multiplex driver with 6 channel PWM generator

8.1.4 Command: mode-settings

[1]

Default value.

[2]

See Section 8.1.4.2.

8.1.4.1

Backplane swapping

Backplane swapping can be configured with the BPS bit (see Table 8). It moves the

location of the backplane and the associated segment outputs from one side of the

PCF8536 to the other. Backplane swapping is sometimes desirable to aid with the routing

of PCBs that do not use multiple layers.

The BPS bit has to be set to the required value before enabling the display. Failure to do

so does not damage the PCF8536 or the display, however unexpected display content

may appear.

Table 8.

Mode-settings - mode settings command bit description

Bit

Symbol

Value

Description

7 to 4

0101

fixed value

BPS

backplane swapping

0[1]

backplane configuration 0

backplane configuration 1

2INV

set inversion mode

0[1][2]

Driving scheme A: LCD line inversion mode

Driving scheme B: LCD frame inversion mode

1PD

set power mode

power-down mode; backplane and segment

outputs are connected to VSS and the internal

oscillator is switched off

0[1]

power-up mode

display switch

0[1]

display disabled; backplane and segment

outputs are connected to VSS

display enabled

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