1 lcd_a controller introduction – Texas Instruments MSP430x4xx User Manual

Page 352

Advertising
background image

LCD_A Controller Introduction

19-2

LCD_A Controller

19.1 LCD_A Controller Introduction

The LCD_A controller directly drives LCD displays by creating the ac segment
and common voltage signals automatically. The MSP430 LCD controller can
support static, 2-mux, 3-mux, and 4-mux LCDs.

The LCD controller features are:

-

Display memory

-

Automatic signal generation

-

Configurable frame frequency

-

Blinking capability

-

Regulated charge pump

-

Contrast control by software

-

Support for 4 types of LCDs:

J

Static

J

2-mux, 1/2 bias or 1/3 bias

J

3-mux, 1/2 bias or 1/3 bias

J

4-mux, 1/2 bias or 1/3 bias

The LCD controller block diagram is shown in Figure 19−1.

Note:

Maximum LCD Segment Control

The maximum number of segment lines available differs with device. See the
device-specific datasheet for available segment pins.

Advertising