AT90S8515

Manufacturer Part NumberAT90S8515
Description8-bit microcontroller with 8K bytes in-system programmable flash, 2.7-6.0V
ManufacturerATMEL Corporation
AT90S8515 datasheet
 
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Page 51/112:

SPI Data Register SPDR

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SPI Data Register – SPDR
0841G–09/01
Bit
7
6
5
$0F ($2F)
MSB
Read/Write
R/W
R/W
R/W
Initial Value
x
x
x
The SPI Data Register is a read/write register used for data transfer between the regis-
ter file and the SPI Shift Register. Writing to the register initiates data transmission.
Reading the register causes the Shift Register Receive buffer to be read.
AT90S8515
4
3
2
1
LSB
R/W
R/W
R/W
R/W
R/W
x
x
x
x
0
SPDR
x
Undefined
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