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Maxq family user’s guide: maxq2010 supplement – Maxim Integrated MAXQ Family Users Guide: MAXQ2010 Supplement User Manual

Page 109

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MAXQ Family User’s Guide:

MAXQ2010 Supplement

20-17

Table 20-11. 1/3 Duty Drive Example Common Signal Selection

Table 20-12. 1/3 Duty Drive Example Register Content

Figure 20-10. 1/3 Duty Drive Example Waveform Timing

1 FRAME (f

FRAME

)

V

LCD

V

LCD1

V

LCD2

GND

SEG2

V

LCD

V

LCD1

V

LCD2

GND

SEG1

V

LCD

V

LCD1

V

LCD2

GND

COM2

V

LCD

V

LCD1

V

LCD2

GND

COM1

V

LCD

V

LCD1

V

LCD2

GND

COM0

V

LCD

2/3 V

LCD

1/3 V

LCD

GND

-1/3 V

LCD

-2/3 V

LCD

-V

LCD

COM1–SEG1

(ON)

V

LCD

2/3 V

LCD

1/3 V

LCD

GND

-1/3 V

LCD

-2/3 V

LCD

-V

LCD

COM1–SEG0

(OFF)

V

LCD

V

LCD1

V

LCD2

GND

SEG0

SEG7

SEG6

SEG5

SEG4

SEG3

SEG2

SEG1

SEG0

COM0

On

On

On

COM1

Off

On

Off

COM2

On

On

(Don’t Care)

COM3

BIT 7

BIT 6

COM2

BIT 5

COM1

BIT 4

COM0

BIT 3

BIT 2

COM2

BIT 1

COM1

BIT 0

COM0

LCD0

0

1

1

1

0

0

0

1

LCD1

0

0

0

0

0

1

0

1

LCD2
LCD3