MEMORY MAP KS57C2308/P2308/C2316/P2316
4-18
LCON — LCD Output Control Register F8EH
Bit 3210
Identifier "0" .2 "0".0
RESET Value 0000
Read/Write WWWW
Bit Addressing 4444
.3 LCD Bias Selection Bit
0This bit is used for internal testing only; always logic zero.
.2 LCD Clock Output Disable/Enable Bit
0Disable LCDCK and LCDSY signal outputs.
1Enable LCDCK and LCDSY signal outputs.
.1 Bit 1
0Always logic zero
.0 LCD Display Control Bit
0LCD output low, turns display off: cut off current to dividing resistor, and output
port 8 latch contents.
1If LMOD.3 = “0”, turns display off; output port 8 latch contents;
If LMOD.3 = “1”, COM and SEG output in display mode; LCD display on.
NOTES:
1. You can manipulate LCON.0, when you try to turn ON/OFF LCD display internally. If you want to control LCD
ON/OFF or LCD contrast externally, you should set the LCON.0 to "0". refer to chapter 12, if you need more
information.
2. To select the LCD bias, you must properly configure both LMOD register and the external LCD bias circuit
connection.