Table of Contents
Advertisement
1.6
Emulation Mode
1.7
Reset
SPRU760B
In emulation mode, SPI has a slightly different functionality: a read of SPI_RX
does not clear the bit RX_FULL (SPI_DSR [0]). Thus, SPI_RX is still
considered as not read for SPI.
Otherwise, SPI behavior in emulation mode is the same as in functional mode.
A read of the bits EMUSOFT and EMUFREE (SPI_SCR [6:5]) always gives 01.
A write has no effect on these bits.
Before accessing or using the module, the local host must ensure that internal
reset is released by reading the system status register (SPI_SSR).
SPI Master/Slave
Serial Interfaces
55
Advertisement
Chapters
Table of Contents
