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| PIC18F87K90 Datasheet, PDF (282/566 Pages) Microchip Technology – 64/80-Pin, High-Performance Microcontrollers with LCD Driver and nanoWatt XLP Technology | |||
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PIC18F87K90 FAMILY
20.3.2.2 Contrast Control
The LCD contrast control circuit consists of a 7-tap
resistor ladder, controlled by the LCDCST bits (see
Figure 20-6.).
FIGURE 20-6:
INTERNAL REFERENCE AND CONTRAST CONTROL BLOCK DIAGRAM
VDD
7 Stages
R
R
R
R
Internal Reference
Contrast Control
Analog
MUX
7
To Top of
Reference Ladder
0
LCDCST<2:0>
3
DS39957B-page 282
Preliminary
ï£ 2010 Microchip Technology Inc.
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