Rainbow-electronics ATmega64M1 Manual do Utilizador descarregar pdf (Página 163)

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8209A–AVR–08/09

ATmega16M1/32M1/64M1

19.5.4 SPDR – SPI Data Register

• Bits 7:0 - SPD7:0: SPI Data

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 76543210

SPD7 SPD6 SPD5 SPD4 SPD3 SPD2 SPD1 SPD0 SPDR

Read/Write R/W R/W R/W R/W R/W R/W R/W R/W

Initial Value XXXXXXXXUndefined

1 2 ... 158 159 160 161 162 163 164 165 166 167 168 ... 342 343

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