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Solution ID: rd01162001_9692
Last Modified: Feb 03, 2006
Product Category: N/A
Product Area: N/A
Product Sub-area: N/A
Problem
Is the Bus-Hold feature in MAX 7000B devices active during JTAG Boundary Scan Testing (BST) and in-system programmability (ISP)?
Solution
If the design pattern that is in the part specifies that a pin uses the Bus-Hold feature, the Bus-Hold feature will remain active during JTAG boundary scan testing.
If the design pattern in the part does not specify that a pin uses the Bus-hold feature,
then the Bus-Hold feature will not be active during JTAG boundary scan testing.
During ISP, the user's design pattern (which specifies which pins use the
Bus-Hold feature) is being changed. Therefore, the Bus-Hold feature is
disabled during ISP.
Feedback
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.
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