LM3S6G11 Datasheet, PDF (578/827 Pages) Texas Instruments – Stellaris® LM3S6G11 Microcontroller

OBSOLETE: TI has discontinued production of this device.
Synchronous Serial Interface (SSI)
13 Synchronous Serial Interface (SSI)
The Stellaris^® microcontroller includes two Synchronous Serial Interface (SSI) modules. Each SSI
is a master or slave interface for synchronous serial communication with peripheral devices that
have either Freescale SPI, MICROWIRE, or Texas Instruments synchronous serial interfaces.
The Stellaris LM3S6G11 controller includes two SSI modules with the following features:
■ Programmable interface operation for Freescale SPI, MICROWIRE, or Texas Instruments
synchronous serial interfaces
■ Master or slave operation
■ Programmable clock bit rate and prescaler
■ Separate transmit and receive FIFOs, each 16 bits wide and 8 locations deep
■ Programmable data frame size from 4 to 16 bits
■ Internal loopback test mode for diagnostic/debug testing
■ Standard FIFO-based interrupts and End-of-Transmission interrupt
■ Efficient transfers using Micro Direct Memory Access Controller (µDMA)
– Separate channels for transmit and receive
– Receive single request asserted when data is in the FIFO; burst request asserted when FIFO
contains 4 entries
– Transmit single request asserted when there is space in the FIFO; burst request asserted
when FIFO contains 4 entries
578
July 24, 2012
Texas Instruments-Production Data