ATMEGA165P-16MUR Atmel, ATMEGA165P-16MUR Datasheet - Page 157

• Manufacturer Part Number: ATMEGA165P-16MUR
• Description: IC MCU AVR 16K 16MHZ 64MLF
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA165P-16MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SPI, UART/USART, USI
• Peripherals: Brown-out Detect/Reset, 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): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17.5.3
8019K–AVR–11/10
SPDR – SPI Data Register
The SPI Data Register is a read/write register used for data transfer between the Register File
and the SPI Shift Register. Writing to the register initiates data transmission. Reading the regis-
ter causes the Shift Register Receive buffer to be read.
Bit
0x2E (0x4E)
Read/Write
Initial Value
MSB
R/W
X
7
R/W
6
X
R/W
X
5
R/W
4
X
R/W
X
3
R/W
X
2
R/W
ATmega165P
1
X
LSB
R/W
X
0
Undefined
SPDR
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