cancel
Showing results for 
Search instead for 
Did you mean: 

Knowledge Base Articles

Corruption in a Particular Location of nvSRAM even Though WE# is Pulled Up to VCC – KBA83102

Anonymous
Not applicable

Corruption in a Particular Location of nvSRAM even Though WE# is Pulled Up to VCC – KBA83102

Version: **

Translation - Japanese: VCCにプルアップされているWE#端子を持つnvSRAMの特定領域での破損 - KBA83102 - Community Translated (JA)

Question:

What is the reason for corruption in a particular location of nvSRAM (typically 0x0000) even though WE# is pulled up to VCC?

Answer:

Certain controllers/FPGAs may pull the I/Os low during their startup. As a result, the WE# may be pulled low by the controller/FPGA. The pull-up resistance on the WE# may not be effective in ensuring a logic HIGH on the WE# pin. In this case, you must ensure that the controller/FPGA is configured to tristate its pins during the boot up phase.

The need for pull-up resistance on the WE# of the nvSRAM is explained in Pull-Up Resistor on the WE# Control Line of an nvSRAM – KBA83047.

0 Likes
Version history
Revision #:
1 of 1
Last update:
‎Jan 30, 2012 01:33 AM
Updated by:
Anonymous
 
Contributors