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M32R Debugger and Trace 24 Security Levels of the M32R Family

Security Levels of the M32R Family

Security Level

Depending on the verification result and the security level, the following

accesses to the device is possible:

• Security ID code matches: Any access is possibly, there are no limitations

• Security ID code does not match:

Security Level 0: There is no access at all, even flashing is not possible. The debugger

generates an error message and remains in down state.

Security Level 1: The debugger reaches up state, but all read/write access to the Flash memory,

to RAM, to registers and peripherals are blocked. No command will be accepted, except a

special command to erase the complete Flash area. Any attempt to execute a command (except

the Flash erase command) will cause an error message.

The special Flash erase command takes care that just a complete erased Flash allows access to

the device by the default Security ID code.

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Renesas M32R-FPU Manuale Utente Pagina 24