Datasheet

06 February 2012 Broadcom Europe Ltd. 406 Science Park Milton Road Cambridge CB4 0WW Page 148
© 2012 Broadcom Corporation. All rights reserved
10 SPI
10.1 Introduction
This Serial interface peripheral supports the following features:
• Implements a 3 wire serial protocol, variously called Serial Peripheral Interface (SPI)
or Synchronous Serial Protocol (SSP).
• Implements a 2 wire version of SPI that uses a single wire as a bidirectional data wire
instead of one for each direction as in standard SPI.
• Implements a LoSSI Master (Low Speed Serial Interface)
• Provides support for polled, interrupt or DMA operation.
10.2 SPI Master Mode
10.2.1 Standard mode
In Standard SPI master mode the peripheral implements the standard 3 wire serial protocol
described below.
Figure 10-1 SPI Master Typical Usage