Datasheet

FS98O22
Rev. 1.6 120/146
The LCD frame frequency could be setup by setting the LCDCKS[1:0] register flags. FS98O22 divides the LCD
Module input clock to get LCDCK. (Please see Table 13-1 and Table 13-2)
Table 13-1 LCD frame frequency selection table
LCDCKS [1:0]
LCD frame frequency (LCDCK)
00 LCD Input clock Frequency/8
01 LCD Input clock Frequency/16
10 LCD Input clock Frequency/32
11 LCD Input clock Frequency/64
Table 13-2 LCD duty selection table
LCD_DUTY [1:0] Control
mode
SEG 1 – SEG12
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
00 static - - - -
01 1/2 - - COM2 COM1 - - COM2 COM1
10 1/3 - COM3 COM2 COM1 - COM3 COM2 COM1
11 1/4 COM4 COM3 COM2 COM1 COM4 COM3 COM2 COM1
FORTUNE'
Properties
For Reference Only