Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Instrukcja Użytkownika Pobierz pdf (Strona 84)

Table 44. 1/3 Duty Drive Example Common Signal Selection

According to the 1/3 duty drive memory map table, LCD0 should be set to 071h and LCD1 should be set to 05h as shown in Table 45.

Table 45. 1/3 Duty Drive Example Register Content

MAXQ Family User’s Guide:

MAXQ2000 Supplement

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 1110 001

LCD1

0 0 0 0 0 101

LCD2

LCD3

1 FRAME (f

FRAME

)

LCD

LCD1

LCD2

GND

SEG2

LCD

LCD1

LCD2

GND

SEG1

LCD

LCD1

LCD2

GND

COM2

LCD

LCD1

LCD2

GND

COM1

LCD

LCD1

LCD2

GND

COM0

LCD

2/3 V

LCD

1/3 V

LCD

GND

-1/3 V

LCD

-2/3 V

LCD

-V

LCD

COM1–SEG1

(ON)

LCD

2/3 V

LCD

1/3 V

LCD

GND

-1/3 V

LCD

-2/3 V

LCD

-V

LCD

COM1–SEG0

(OFF)

LCD

LCD1

LCD2

GND

SEG0

Figure 17. 1/3 Duty Drive Example Waveform Timing

Maxim Integrated

1 2 ... 79 80 81 82 83 84 85 86 87 88 89 ... 92 93

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