Serial Peripheral Interface (SPI) is used for generic serial communication between AVR32 processors and peripherals.
Two SPI interfaces are available. The first one is used to configure DataFlash and SD/MMC Interface. The second one is routed to the dedicated SPI header.
Dataflash (1)
SD and MMC (2)
SPI (3)
Signal | Description | Peripheral and connectors | Available on GPIO |
---|---|---|---|
SPI0_SCK | Serial clock | 1,2,3,4 | |
SPI0_MISO | Master In Slave Out | 1,2,3,4 | |
SPI0_MOSI | Master Out Slave In | 1,2,3,4 | |
SPI0_CS0 | Peripheral chip select/Slave select | 1,4 | |
SPI0_CS1 | Peripheral chip select | 2,4 | |
SPI0_CS2 | Peripheral chip select | 5 |