The Arm PL022 provides an interface for synchronous serial communication with peripheral devices connected to the SoC via the Advanced Peripheral Bus (APB). It supports a choice of interface operation, Motorola compatible Serial Peripheral Interface (SPI), National Semiconductor Microwire, or Texas Instruments synchronous serial interface. See the Techology page for details.
rami hariri
Rashi Dutt
Daniel Newbrook
Peter Richards
Kun-Chih (Jimmy) Chen