ATMEGA169PV-8AUR Atmel, ATMEGA169PV-8AUR Datasheet - Page 176
ATMEGA169PV-8AUR
Manufacturer Part Number
ATMEGA169PV-8AUR
Description
MCU AVR 16KB FLASH 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA169PV-8AU.pdf
(395 pages)
Specifications of ATMEGA169PV-8AUR
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
*
Package
64TQFP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
2.5|3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
54
Interface Type
SPI/USART/USI
On-chip Adc
8-chx10-bit
Number Of Timers
3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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8018P–AVR–08/10
For the assembly code, the baud rate parameter is assumed to be stored in the r17:r16
Registers.
Note:
More advanced initialization routines can be made that include frame format as parameters, dis-
able interrupts and so on. However, many applications use a fixed setting of the baud and
control registers, and for these types of applications the initialization code can be placed directly
in the main routine, or be combined with initialization code for other I/O modules.
Assembly Code Example
C Code Example
USART_Init:
#define FOSC 1843200// Clock Speed
#define BAUD 9600
#define MYUBRR FOSC/16/BAUD-1
void main( void )
{
}
void USART_Init( unsigned int ubrr)
{
}
; Set baud rate
sts
sts
; Enable receiver and transmitter
ldi
sts
; Set frame format: 8data, 2stop bit
ldi
sts
ret
...
USART_Init ( MYUBRR );
...
/* Set baud rate */
UBRRH0 = (unsigned char)(ubrr>>8);
UBRRL0 = (unsigned char)ubrr;
/* Enable receiver and transmitter */
UCSR0B = (1<<RXEN0)|(1<<TXEN0);
/* Set frame format: 8data, 2stop bit */
UCSRnC = (1<<USBS0)|(3<<UCSZ00);
1.
See ”About Code Examples” on page 10.
UBRRH0, r17
UBRRL0, r16
r16, (1<<RXEN0)|(1<<TXEN0)
UCSR0B,r16
r16, (1<<USBS0)|(3<<UCSZ00)
UCSR0C,r16
(1)
(1)
ATmega169P
176
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