LM3S1150-IQC50 Luminary Micro, Inc., LM3S1150-IQC50 Datasheet - Page 291

• Manufacturer Part Number: LM3S1150-IQC50
• Description: Microcontroller
• Manufacturer: Luminary Micro, Inc.

13
13.1
June 14, 2007
Synchronous Serial Interface (SSI)
SSI
The Stellaris
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.
Each Stellaris
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Block Diagram
Figure 13-1. SSI Module Block Diagram
SSIPCellID0
SSIPCellID1
SSIPCellID2
SSIPCellID3
Master or slave operation
Programmable clock bit rate and prescale
Separate transmit and receive FIFOs, 16 bits wide, 8 locations deep
Programmable interface operation for Freescale SPI, MICROWIRE, or Texas Instruments
synchronous serial interfaces
Programmable data frame size from 4 to 16 bits
Internal loopback test mode for diagnostic/debug testing
System Clock
Interrupt
Identification Registers
®
®
microcontroller includes two Synchronous Serial Interface (SSI) modules. Each SSI
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SSIPeriphID0
SSIPeriphID1
SSIPeriphID2
SSIPeriphID3
SSI module has the following features:
Control / Status
SSICR0
SSICR1
SSISR
SSIPeriphID4
SSIPeriphID5
SSIPeriphID6
SSIPeriphID7
Interrupt Control
Prescaler
SSICPSR
Clock
SSIDR
SSIMIS
SSIRIS
SSIICR
SSIIM
RxFIFO
TxFIFO
8 x 16
8 x 16
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.
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LM3S1150 Microcontroller
Transmit/
Receive
Logic
291
SSITx
SSIRx
SSIFss
SSIClk