Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Manuale Utente Scaricare il pdf (Pagina 85)

LCD Controller 1/4 Duty Cycle Drive Example

In this example, SEG0 and SEG1 are used to drive the LCD segments. The segments and common signals are connected as shown

in Figure 18.

Table 46. 1/4 Duty Drive Example Common Signal Selection

According to the 1/4 duty drive memory map table, LCD0 should be set to 0D7h as shown in Table 47.

Table 47. 1/4 Duty Drive Example Register Content

MAXQ Family User’s Guide:

MAXQ2000 Supplement

SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0

COM0

ON ON

COM1

off ON

COM2

ON ON

COM3

ON off

BIT 7

COM3

BIT 6

COM2

BIT 5

COM1

BIT 4

COM0

BIT 3

COM3

BIT 2

COM2

BIT 1

COM1

BIT 0

COM0

LCD0

11010111

LCD1

LCD2

LCD3

SEG1SEG0

COM1

COM2

COM3

COM0

Figure 18. 1/4 Duty Drive Example Display Connection

Maxim Integrated

1 2 ... 80 81 82 83 84 85 86 87 88 89 90 91 92 93

MAXQ Family User’s Guide: 1
MAXQ2000 Supplement 1

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Maxim-integrated MAXQ Family Users Guide: MAXQ2000 Supplement Manuale Utente Pagina 85

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