Flash Storage Solutions for Embedded Designs
High Reliability Flash SSDs, Cards and Modules for Industrial Applications
Posted by David Chen on Thursday, 01 May 2014
CompactFlash Card with Write Protect Switch
Recently a gaming OEM customer has contacted Fortasa to investigate and evaluate our CompactFlash card solution for their Video Poker Machine. What attracted this customer was the specific features we offered that were very beneficial to the application:
Write Protect Switch
Fortasa offers a variant of our standard CompactFlash card product with a built-in hardware Write Protect switch. Typically customer loads the data image onto the Flash card and then sets the WP switch to an on position. With the WP switch in place any destructive host command to the card such as Write or Erase would be ignored by Flash controller. Because the controller ignores the destructive command and not gives an error message, the host can continue to execute code for Flash card access and not be halted by any error messages relating to Write/Erase ignored commands. Even though with the WP switch in the on position all Write/Erase commands are ignored, the Flash controller continuous to monitor the Flash usage and could transparently move around the stored data in case of high bit error rate due to affects of Flash media from read disturb.
Protection Zones
The poker video game system has three different storage requirements:
In the past, this customer needed to have three different storage devices to accomplish these requirements:
With the Fortasa CompactFlash card all three of these functions can be addressed in a single product with multiple memory zones.
Please see related article about the Protection Zone capabilities in Fortasa CompactFlash cards.
Please contact Fortasa for any specific features of our Industrial CompactFlash card products.
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