nRF51 SDK - S120 SoftDevice
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SPI Slave
Features supported
  • Full duplex communication through SPI.
  • SPI slave EasyDMA functionality for reading and writing from and to the RAM.
  • SPI1_TWI1_IRQHandler used as IRQ handler.

The internal design of the SPI slave driver is illustrated by the statemachine below.

SPI slave driver statemachine