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Cable - When powering a cable with 5 volts and using a 3.3 volt xl part, what voltage are the control signals?
Record #5501
Problem Title:
Cable - When powering a cable with 5 volts and using a 3.3 volt xl part, what voltage are
the control signals?
Problem Description:
Urgency: Standard
General Description:
When powering a cable with five volts, yet programming a Xilinx XL (3.3 volts),
what is the result?
Solution 1:
The power that you provide to an xchecker and JTAG cable is what the control signals will be at. If
you provide 5 volts to a cable and you are programming a 3.3 volt part, you will be driving it with
5 volt control signals which is ok in 5 volt tolerant devices.
The XChecker cable needs to be powered at 3.6 volts or higher.
The JTAG cable can run at 3.3 volts and up.
End of Record #5501 - Last Modified: 01/10/00 18:43 |
