Serial Peripheral Interface Controller
UG0331 User Guide Revision 15.0
524
The following table lists main APIs for SPI. For complete information on the APIs, refer to the
as shown in the preceding figure.
7.
For more information on SPI usage, the sample projects are available and can be generated, as
shown in the following figure.
Figure 225 •
SPI Sample Project
Note:
The MSS SPI does not support full behavioral simulation models. Refer to
for more information.
Table 497 •
MSS SPI APIs
Category
API
Description
Initialization and
configuration
functions
MSS_SPI_init()
Initializes the SPI
MSS_SPI_configure_master_mode()
Configures the protocol mode, serial clock speed and
frame size for a specific target SPI slave device
MSS_SPI_configure_slave_mode()
Configures a MSS SPI block for operations as a SPI slave
device
Data transfer
functions
MSS_SPI_set_slave_select()
Selects a specific slave by a MSS SPI master
MSS_SPI_transfer_frame()
Used by a MSS SPI master to transmit and receive a
frame up to 32 bits long
MSS_SPI_transfer_block()
Used by MSS SPI masters to transmit and receive blocks
of data
MSS_SPI_clear_slave_select()
To deselect a specific slave by a MSS SPI master
MSS_SPI_set_slave_tx_frame()
Used by MSS SPI slaves to specify the frame that will be
transmitted
MSS_SPI_set_frame_rx_handler()
Used by MSS SPI slaves to specify the receive handler
function
DMA block
transfer functions
MSS_SPI_disable()
To temporarily disable a MSS SPI
MSS_SPI_set_transfer_byte_count()
Specifies the number of bytes
MSS_SPI_enable()
To re-enable a MSS SPI
MSS_SPI_tx_done()
To find out if a DMA controlled transfer has completed