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Altera_Forum
Honored Contributor
Honored ContributorExternal SPI master clock connect to CPLD global clock network ?
When using SPI communication, where a CPLD is acting as the slave and a microcontroller is the master, would the SPI clock (SCK) be connected to a global clock network of the CPLD? I.e. one of the CL...
Altera_ForumHonored Contributor
Honored ContributorIt can be, yes. However, it doesn't have to be - you could use an ordinary I/O pin instead.
What is best for your design depends on what you're expecting to do with your slave CPLD. Cheers, Alex
