Solution ID: rd09161999_1536
Last Modified: Feb 08, 2006
Product Category: N/A
Product Area: N/A
Product Sub-area: N/A

Problem

Can I configure an APEX^™ 20K or FLEX^® 10K device with an EPC1064 or EPC1213 configuration Device?

Solution

You cannot configure a APEX 20K or FLEX 10K device with an EPC1064 or EPC1213 configuration device for the following reasons:

• The EPC1064 and EPC1213 configuration devices do not have an on-chip oscillator, which is present in the EPC1, EPC1441, and EPC2 devices.

• The EPC1064 and EPC1213 configuration devices do not have a program length counter; EPC1, EPC1441, and EPC2 devices have this counter. The program length counter tells the device how long the programming file is, so it knows when it should receive a high signal on the CONF_DONE pin. The program length counter allows for error detection during configuration. FLEX 8000, EPC1, EPC1441, and EPC2 devices have a program length counter; APEX 20K, FLEX 10K, FLEX 6000, EPC1064, and EPC1213 devices do not.
  Moving the program length counter and the oscillator into EPC1, EPC1441, and EPC2 configuration devices gives them full control over the configuration process.
  

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Altera does not warrant that this solution will work for the customer's intended purpose and disclaims all liability for use of or reliance on the solution.