Reference Design Example

4.5Synchronous serial port

The synchronous serial port PrimeCell is used to implement the SPI interface. Refer to the ARM PrimeCell Synchronous Serial Port Master and Slave (PL022) Technical Reference Manual for information about this device.

The SSP is clocked by the CLK1 signal from the logic module. This clock is set to 25MHz by default.

ARM DUI 0163B

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Arm Enterprises IM-AD1 manual Synchronous serial port