Maxim Integrated MAXQ Family Users Guide: MAXQ2000 Supplement - Manual (Page 82)

LCD Controller 1/2 Duty Cycle Drive Example
In this example, SEG0 through SEG3 are used to drive the LCD segments. The segments and common signals are connected as shown
in Figure 14.
Table 42. 1/2 Duty Drive Example Common Signal Selection
According to the 1/2 duty drive memory map table, a value of 0DEh should be written to the LCD0 register as shown in Table 43.
Table 43. 1/2 Duty Drive Example Register Content
MAXQ Family User’s Guide:
MAXQ2000 Supplement
SEG3 SEG2 SEG1
SEG0
COM1 COM0
Figure 14. 1/2 Duty Drive Example Display Connection
SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 SEG0
COM0 ON ON ON off
COM1 ON off ON ON
COM2
COM3
BIT 7
COM1
BIT 6
COM0
BIT 5
COM1
BIT 4
COM0
BIT 3
COM1
BIT 2
COM0
BIT 1
COM1
BIT 0
COM0
LCD0 1 1 0 1 1 1 1 0
LCD1
LCD2
LCD3
Maxim Integrated 82