Article ID: 000084139 Content Type: Troubleshooting Last Reviewed: 08/27/2013

Can I use the nCEO pin as a regular I/O after configuration, when it is used in multi-device configuration mode?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

No, you cannot use the nCEO pin as a regular I/O after configuration, when it is used in multi-device configuration mode.

For example, if there are two devices in a chain which are linked by connecting nCEO to nCE, then the nCEO pin on the first device must be set as "Use as Programming pin" in the Dual Purpose Pins settings dialog box in the Quartus® II software.

Related Products

This article applies to 3 products

Cyclone® IV FPGAs
Cyclone® IV GX FPGA
Cyclone® IV E FPGA

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