Programmable Devices
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nCE pin in PS configuration mode

Altera_Forum
Honored Contributor II
‎03-04-2011 02:22 PM
1,474 Views

As I understand, the nce pin disables configuration. But what will happen if it will be toggled during configuration in Passive Configuration mode? Will it temporary stop accepting stream, or will it stop a configuration process at all? 

 

In my application, I want to use the same SPI interface of CPU for reading data from serial flash, and to configure FPGA (Cyclone III). Memory has a CS, so no problem. But what about FPGA - will the nCE pin act as a Chip Select and temporary disable configuration while nCE=1? 

 

Thanks in advance for comments.
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