ATMEGA1280V-8AUR Atmel, ATMEGA1280V-8AUR Datasheet - Page 195
ATMEGA1280V-8AUR
Manufacturer Part Number
ATMEGA1280V-8AUR
Description
MCU AVR 128K FLASH 8MHZ 100TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA1280V-8AUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
86
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
For Use With
ATSTK600-TQFP100 - STK600 SOCKET/ADAPTER 100-TQFPATSTK503 - STARTER KIT AVR EXP MODULE 100P
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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20. SPI – Serial Peripheral Interface
2549M–AVR–09/10
The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the
ATmega640/1280/1281/2560/2561 and peripheral devices or between several AVR devices.
The ATmega640/1280/1281/2560/2561 SPI includes the following features:
•
•
•
•
•
•
•
•
USART can also be used in Master SPI mode, see
The Power Reduction SPI bit, PRSPI, in
page 50 must be written to zero to enable SPI module.
Figure 20-1. SPI Block Diagram
Note:
The interconnection between Master and Slave CPUs with SPI is shown in
196. The system consists of two shift Registers, and a Master clock generator. The SPI Master
initiates the communication cycle when pulling low the Slave Select SS pin of the desired Slave.
Full-duplex, Three-wire Synchronous Data Transfer
Master or Slave Operation
LSB First or MSB First Data Transfer
Seven Programmable Bit Rates
End of Transmission Interrupt Flag
Write Collision Flag Protection
Wake-up from Idle Mode
Double Speed (CK/2) Master SPI Mode
1. Refer to
/2/4/8/16/32/64/128
DIVIDER
Figure 1-1 on page
ATmega640/1280/1281/2560/2561
(1)
2, and
“PRR0 – Power Reduction Register 0” on page 56
Table 12-6 on page 79
“USART in SPI Mode” on page
for SPI pin placement.
Figure 20-2 on page
232.
195
on
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