Chapter 17
LCD
Operation
XVII - 25
17.3.6
Setup Examples of REFVOL and BSTVOL
The following example shows how to display "23" on a 8-segment type LCD panel by using SEG0-SEG3 and
COM0-COM3, with the voltage generated with REFVOL and BSTVOL.
The display mode with 1/4 duty output and 1/3 bias is selected.
Setup Procedure
Description
(1) Select the boost mode
of BSTVOL
LCDMD4 (0x03ECE)
bp0: LCUPMD = 0
(1) Select the three times boost mode.
(2) Activate BSTVOL and REFVOL
LCDMD1 (0x03E81)
bp7: LCVREN = 1
LCDMD0 (0x03E80)
bp7: LCUPEN = 1
(2) Activate BSTVOL and REFVOL.
(3) SEG & COM pins setting
LCCTR0 (0x03E86)
bp7-4: SEGSL3-0 = 1111
bp3-0: COMSL3-0 = 1111
LCDSEL (0x03E8E)
bp3-0: COMSL7-4 = 0000
(3) Select SEG0-3 and COM0-3 pins.
(4) Select a LCDCLK
LCDMD3 (0x3E83)
bp6-3: LCCK3-0 = 0111
bp2-0: LCCKS2-0 = 101
(4) Select "HCLK/2
18
" as a display clock.
(5) Select a display duty.
LCDMD2 (0x03E82)
bp2-0: LCDTY2-0 = 011
(5) Select "1/4" as a display duty.
(6) Set the display data.
LCDATA0 (0x03E90) = 0x0E
LCDATA1 (0x03E91) = 0x05
LCDATA2 (0x03E92) = 0x0C
LCDATA3 (0x03E93) = 0x07
(6) Set the display data, "23" on the segment output latch.
(7) Activate the LCD.
LCDMD2 (0x03E82)
bp7: LCEN = 1
(7) Start the LCD.
Summary of Contents for MN101L Series
Page 1: ...Cover MICROCOMPUTER MN101L MN101LR05D 04D 03D 02D LSI User s Manual Pub No 21705 015E ...
Page 2: ......
Page 8: ......
Page 10: ......
Page 11: ...Contents Contents 0 ...
Page 22: ... Contents 11 ...
Page 23: ...I Chapter 1 Overview 1 ...
Page 62: ...Chapter 1 Overview I 40 Cautions for Circuit Setup ...
Page 63: ...II Chapter 2 CPU 2 ...
Page 94: ...Chapter 2 CPU II 32 Reset ...
Page 95: ...III Chapter 3 Interrupts 3 ...
Page 143: ...IV Chapter 4 Clock Mode Voltage Control 4 ...
Page 175: ...V Chapter 5 Watchdog Timer WDT 5 ...
Page 180: ...Chapter 5 Watchdog Timer WDT V 6 Operation ...
Page 181: ...VI Chapter 6 Power Supply Voltage Detection 6 ...
Page 189: ...VII Chapter 7 I O Port 7 ...
Page 248: ...Chapter 7 I O Port VII 60 Port 8 ...
Page 249: ...VIII Chapter 8 8 bit Timer 8 ...
Page 282: ...Chapter 8 8 bit Timer VIII 34 8 bit Timer Cascade Connection ...
Page 283: ...IX Chapter 9 16 bit Timer 9 ...
Page 346: ...Chapter 9 16 bit Timer IX 64 IGBT Output with Dead Time ...
Page 347: ...X Chapter 10 General Purpose Time Base Free Running Timer 10 ...
Page 361: ...XI Chapter 11 RTC Time Base Timer RTC TBT 11 ...
Page 371: ...XII Chapter 12 Real Time Clock RTC 12 ...
Page 389: ...XIII Chapter 13 Serial Interface 13 ...
Page 458: ...Chapter 13 Serial Interface XIII 70 IIC Communication ...
Page 459: ...XIV Chapter 14 DMA Controller 14 ...
Page 472: ...Chapter 14 DMA Controller XIV 14 DMA Data Transfer ...
Page 473: ...XV Chapter 15 Buzzer 15 ...
Page 479: ...XVI Chapter 16 A D Converter ADC 16 ...
Page 493: ...XVII Chapter 17 LCD 17 ...
Page 530: ...Chapter 17 LCD XVII 38 LCD Display Examples ...
Page 531: ...XVIII Chapter 18 ReRAM 18 ...
Page 538: ...Chapter 18 ReRAM XVIII 8 Command Library ...
Page 539: ...XIX Chapter 19 On Board Debugger 19 ...
Page 542: ...Chapter 19 On Board Debugger XIX 4 List of on board debugging functions ...
Page 543: ...XX Chapter 20 Appendix 20 ...