saa-xc886clm Infineon Technologies Corporation, saa-xc886clm Datasheet - Page 26

• Manufacturer Part Number: saa-xc886clm
• Description: 8-bit Single Chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

Table 3
Flash Protection Without hardware
External access
to D-Flash
D-Flash
program
D-Flash erase
BSL mode 6, which is used for enabling Flash protection, can also be used for disabling
Flash protection. Here, the programmed password must be provided by the user. A
password match triggers an automatic erase of the protected P-Flash and D-Flash
contents, including the programmed password. The Flash protection is then disabled
upon the next reset.
Although no protection scheme can be considered infallible, the SAA-XC886 memory
protection strategy provides a very high level of protection for a general purpose
microcontroller.
Data Sheet
Flash Protection Modes (cont’d)
protection
Not possible
Possible
Possible
With hardware protection
Not possible
Possible
Possible, on
condition that bit
DFLASHEN in
register MISC_CON
is set to 1 prior to
each erase operation
19
Functional Description
Not possible
Not possible
Not possible
SAA-XC886CLM
V1.0, 2009-09