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21489 spi slave boot flow control

Question asked by babazaroni on Dec 19, 2014
Latest reply on Dec 20, 2014 by KRZ

From the app note:


I see that some processors have a flow control bit when booting in SPI slave mode.


The 21489 is not mentioned in the app-note, possibly because the app note came out before the 214xx series.


The earlier processors had only a 2-word fifo so flow control was necessary while the boot kernel was doing something that might take some time.


Does the 21489 also need flow-control in spi slave boot mode?