Analog Devices ADSP-21261 SHARC Hardware Reference Manual page 18

Contents
Slave Mode DMA Operation .......................................... 10-17
Slave Transfer Preparation ........................................... 10-18
Changing SPI Configuration ........................................... 10-20
Switching From Transmit To Receive DMA ..................... 10-21
Switching From Receive to Transmit DMA ..................... 10-22
DMA Error Interrupts .................................................... 10-24
DMA Chaining .............................................................. 10-25
SPI Transfer Formats ................................................................ 10-26
Beginning and Ending an SPI Transfer ................................ 10-28
SPI Word Lengths .................................................................... 10-29
8-Bit Word Lengths ............................................................ 10-30
16-Bit Word Lengths .......................................................... 10-30
32-Bit Word Lengths .......................................................... 10-31
Packing .............................................................................. 10-31
SPI Interrupts ........................................................................... 10-32
SPI Registers ............................................................................ 10-34
Control and Status Registers ................................................ 10-34
SPI Baud Setup Register (SPIBAUD) .............................. 10-34
Use of DSxEN Bits in SPIFLG
for Multiple Slave SPI Systems ..................................... 10-36
SPI Device Select Input Pin ............................................ 10-37
Buffering and Transmit/Receive Registers ............................ 10-37
SPI Transmit Data Buffer Register (TXSPI) ..................... 10-38
SPI Receive Data Buffer Register (RXSPI) ....................... 10-39
xviii ADSP-2126x SHARC Processor Hardware Reference