ATMEGA649-16MI Atmel, ATMEGA649-16MI Datasheet - Page 238
ATMEGA649-16MI
Manufacturer Part Number
ATMEGA649-16MI
Description
IC AVR MCU FLASH 64K 5V 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA649-16MI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, LCD, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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ATmega329/3290/649/6490
Note:
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 9.
r16, LCDCRA
r16, (1<<LCDEN)|(1<<LCDIF)|(1<<LCDBL)
LCDCRA, r16
r16, LCDCRA
r16, (0<<LCDEN)
LCDCRA, r16
(1)
(1)
2552K–AVR–04/11
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