ATMEGA169V-8MI Atmel, ATMEGA169V-8MI Datasheet - Page 219
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ATMEGA169V-8MI
Manufacturer Part Number
ATMEGA169V-8MI
Description
IC MCU AVR 16K 1.8V 1MHZ 64-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA169V-8MI
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
54
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
For Use With
ATAVRBFLY - KIT EVALUATION AVR BUTTERFLYATSTK502 - MOD EXPANSION AVR STARTER 500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
ATMEGA169V-1MI
ATMEGA169V-1MI
ATMEGA169V-1MI
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LCD Control and Status
Register A – LCDCRA
2514P–AVR–07/06
Note:
• Bit 7 – LCDEN: LCD Enable
Writing this bit to one enables the LCD Controller/Driver. By writing it to zero, the LCD is
turned off immediately. Turning the LCD Controller/Driver off while driving a display,
Bit
Read/Write
Initial Value
Assembly Code Example
C Code Example
LCD_disable:
Wait_1:
Wait_2:
Void LCD_disable(void);
{
while ( !(LCDCRA & (1<<LCDIF)) )
while ( !(LCDCRA & (1<<LCDIF)) )
}
; Wait until a new frame is started.
lds
sbrs r16, LCDIF
rjmp Wait_1
; Set LCD Blanking and clear interrupt flag
; by writing a logical one to the flag.
ldi
sts
; Wait until LCD Blanking is effective.
lds
sbrs r16, LCDIF
rjmp Wait_2
; Disable LCD.
ldi
sts
ret
/* Wait until a new frame is started. */
;
/* Set LCD Blanking and clear interrupt flag */
/* by writing a logical one to the flag. */
LCDCRA = (1<<LCDEN)|(1<<LCDIF)|(1<<LCDBL);
/* Wait until LCD Blanking is effective. */
;
/* Disable LCD */
LCDCRA = (0<<LCDEN);
1. See “About Code Examples” on page 6.
r16, LCDCRA
r16, (1<<LCDEN)|(1<<LCDIF)|(1<<LCDBL)
LCDCRA, r16
r16, LCDCRA
r16, (0<<LCDEN)
LCDCRA, r16
LCDEN
R/W
7
0
(1)
LCDAB
R/W
6
0
(1)
R
5
–
0
LCDIF
R/W
4
0
LCDIE
R/W
3
0
R
2
–
0
ATmega169/V
R
1
–
0
LCDBL
R/W
0
0
LCDCRA
219
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