UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 207

• Manufacturer Part Number: UPD78F9418AGK-9EU
• Manufacturer: Renesas Electronics America

Specifications of UPD78F9418AGK-9EU

• Lead Free Status / Rohs Status: Supplier Unconfirmed

14.3 Registers Controlling LCD Controller/Driver
LCDM0
The following three registers are used to control the LCD controller/driver.
• LCD display mode register 0 (LCDM0)
• LCD port selector 0 (LPS0)
• LCD clock control register 0 (LCDC0)
(1)
Note When the LCD display panel is not used, VAON0 and LIPS0 must be fixed to 0 to conserve power.
Caution Before attempting to manipulate VAON0, set LIPS0 and LCDON0 to 0 to turn off the LCD.
Symbol
LCD display mode register 0 (LCDM0)
LCDM0 specifies whether to enable display operation. It also specifies the operation mode, LCD drive power
supply, and display mode.
LCDM0 is set using a 1-bit or 8-bit memory manipulation instruction.
RESET input sets LCDM0 to 00H.
LCDON0
LIPS0
LCDM02
LCDON0 VAON0
VAON0
Other than above
0
1
0
0
0
0
1
0
1
0
1
7
LCDM01
Display off (all segment outputs are deselected.)
Display on
Normal operation
Low-voltage operation
LCD drive power is not supplied.
LCD drive power is supplied to the BIAS pin.
6
0
0
1
1
0
LCDM00
0
1
0
1
0
5
0
Figure 14-2. Format of LCD Display Mode Register 0
LIPS0
4
3
2
3
Static
Setting prohibited
4
CHAPTER 14 LCD CONTROLLER/DRIVER
3
0
Number of time slices
LCDM02 LCDM01 LCDM00
User’s Manual U13952EJ3V1UD
2
LCD controller/driver operation mode
LCD controller/driver display mode selection
1
LCD drive power supply selection
Control of LCD display
0
Address
FFB0H
1/3
1/3
1/2
1/2
After reset
Note
00H
Bias mode
R/W
R/W
205