Renesas FLASH Development Toolkit 3.07, User Manual

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14.2 Security Protection
QzROM also introduces the concept of Security Protection into FDT, which is optionally set as FDT
disconnects (Note – once set, this cannot be undone).
The majority of devices have two levels of protection, Full (which prevents any later reconnection to the
device) or None (which allows reconnection normally). Newer devices have more levels - allowing a partial
protection of the device and yet still allowing a later connection (but with the protected data region
masked).
There are three options for the setting of security protection:
1. Automatic – FDT will protect the device as it disconnects. The level of protection will be determined
when Automatic is initially selected, typically ‘Full’. If the device offers multiple levels of protection
then a dialog will appear to allow the user to select the level that should automatically be applied:
Figure 14-2 Automatic Protect choice
2. Prompt – FDT will ask what to do during the disconnect, i.e. whether to protect or not. The choice is
between full protection (or other levels if supported by the device) or no protection at all. The default is
‘No’.
Figure 14-3 Disconnect Protect choice
3. None – FDT will not protect the device on disconnect.
As the disconnect actually happens the result of the operation will be echoed to the Output window.
There are several ways of changing this setting depending on the current mode of operation: