STK1000/SPI interface
From AVRFreaks Wiki
Serial Peripheral Interface (SPI) is used for generic serial communication between AVR32 processors and peripherals.
The SPI is used to configure both the external DAC and the LCD screen. In addition the interface is routed to the dedicated SPI header, the general expansion headers and the PCI style expansion connector.
Peripherals and connectors
- External DAC (1)
- LCD screen (2)
- PCI style expansion connector (3)
- General expansion headers (4)
- SPI header (5)
Signals
Please refer the datasheet for the AVR32 processor on you daughter board for a description of these signals
Signal | Description | Available on * |
---|---|---|
SPI_SCK | Serial clock | 1,2,3,4,5 |
SPI_MISO | Master In Slave Out | 1,3,4,5 |
SPI_MOSI | Master Out Slave In | 1,2,3,4,5 |
SPI_NPCS0 | Peripheral chip select/Slave select | 1,3,4 |
SPI_NPCS1 | Peripheral chip select | 2,3,4 |
SPI_NPCS2 | Peripheral chip select | 3,4 |
- The numbers refer to the peripherals an connectors listed above.