LM3S102-IRN20(T) Luminary Micro, Inc., LM3S102-IRN20(T) Datasheet - Page 229

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LM3S102-IRN20(T)

Manufacturer Part Number
LM3S102-IRN20(T)
Description
Microcontroller
Manufacturer
Luminary Micro, Inc.
Datasheet
12
12.1
Figure 12-1. SSI Module Block Diagram
October 6, 2006
Synchronous Serial Interface (SSI)
The Stellaris Synchronous Serial Interface (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 SSI has the following features:
Block Diagram
SSIPCellID0
SSIPCellID1
SSIPCellID2
SSIPCellID3
System Clock
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
Interrupt
Identification Registers
SSIPeriphID 0
SSIPeriphID 1
SSIPeriphID 2
SSIPeriphID 3
Control / Status
SSICR0
SSICR1
SSISR
SSIPeriphID 4
SSIPeriphID 5
SSIPeriphID 6
SSIPeriphID 7
Preliminary
Interrupt Control
Prescaler
SSICPSR
Clock
SSIMIS
SSIICR
SSIDR
SSIRIS
SSIIM
RxFIFO
TxFIFO
8 x 16
8 x 16
.
.
.
.
.
.
LM3S102 Data Sheet
Transmit /
Receive
Logic
SSITx
SSIRx
SSIFss
SSIClk
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