Maxim Integrated MAXQ Family Users Guide: MAXQ2000 Supplement - Manual (Page 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 1 1 0 1 0 1 1 1
LCD1
LCD2
LCD3
SEG1 SEG0
COM1
COM2
COM3
COM0
Figure 18. 1/4 Duty Drive Example Display Connection
Maxim Integrated 85