ATMEGA3290PV-10AUR Atmel, ATMEGA3290PV-10AUR Datasheet - Page 238

• Manufacturer Part Number: ATMEGA3290PV-10AUR
• Description: MCU AVR 32K FLASH 10MHZ 64TQFP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA3290PV-10AUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 69
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8021G–AVR–03/11
Note:
Before a re-initialization is done, the LCD controller/driver should be disabled
Assembly Code Example
C Code Example
LCD_Init:
Void LCD_Init(void);
{
LCDCRB = (1<<LCDCS) | (1<<LCDMUX1)| (1<<LCDPM2);
}
; Use 32kHz crystal oscillator
; 1/3 Bias and 1/3 duty, SEG21:SEG24 is used as port pins
ldi
sts
; Using 16 as prescaler selection and 7 as LCD Clock Divide
; gives a frame rate of 49 Hz
ldi
sts
; Set segment drive time to 125 µs and output voltage to 3.3 V
ldi
sts
; Enable LCD, default waveform and no interrupt enabled
ldi
sts
ret
/* Use 32kHz crystal oscillator */
/* 1/3 Bias and 1/3 duty, SEG21:SEG24 is used as port pins */
/* Using 16 as prescaler selection and 7 as LCD Clock Divide */
/* gives a frame rate of 49 Hz */
LCDFRR = (1<<LCDCD2) | (1<<LCDCD1);
/* Set segment drive time to 125 µs and output voltage to 3.3 V*/
LCDCCR = (1<<LCDDC1) | (1<<LCDCC3) | (1<<LCDCC2) | (1<<LCDCC1);
/* Enable LCD, default waveform and no interrupt enabled */
LCDCRA = (1<<LCDEN);
1. See
r16, (1<<LCDCS) | (1<<LCDMUX1)| (1<<LCDPM2)
LCDCRB, r16
r16, (1<<LCDCD2) | (1<<LCDCD1)
LCDFRR, r16
r16, (1<<LCDDC1) | (1<<LCDCC3) | (1<<LCDCC2) | (1<<LCDCC1)
LCDCCR, r16
r16, (1<<LCDEN)
LCDCRA, r16
”About Code Examples” on page 9
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ATmega329P/3290P
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