ATMEGA48V_09 ATMEL [ATMEL Corporation], ATMEGA48V_09 Datasheet - Page 169
ATMEGA48V_09
Manufacturer Part Number
ATMEGA48V_09
Description
8-bit Microcontroller with 8K Bytes In-System Programmable Flash
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATMEGA48V_09.pdf
(378 pages)
- Current page: 169 of 378
- Download datasheet (5Mb)
18.5.3
2545R–AVR–07/09
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
X
4
R/W
X
3
R/W
ATmega48/88/168
X
2
R/W
1
X
LSB
R/W
X
0
Undefined
SPDR
169
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