AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 263
AT32UC3C1512C Automotive
Manufacturer Part Number
AT32UC3C1512C Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.AT32UC3C0512C_AUTOMOTIVE.pdf
(1312 pages)
3.AT32UC3C0512C_AUTOMOTIVE.pdf
(107 pages)
- AT90CAN128_AUTOMOTIVE PDF datasheet
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #2
- AT32UC3C0512C_AUTOMOTIVE PDF datasheet #3
- Current page: 263 of 1312
- Download datasheet (20Mb)
15.7
9166C–AVR-08/11
Security bit
The lock bits are implemented using the lowest 16 general-purpose fuse bits. This means that
the 16 lowest general-purpose fuse bits can also be written/erased using the commands for
locking/unlocking regions, see
The security bit allows the entire chip to be locked from external JTAG or other debug access for
code security. The security bit can be written by a dedicated command, Set Security Bit (SSB).
Once set, the only way to clear the security bit is through the JTAG Chip Erase command.
Once the Security bit is set, the following Flash controller commands will be unavailable and
return a lock error if attempted:
One error can be detected in the FSR register after issuing the command:
• Write General-Purpose Fuse Bit (WGPB) to BOOTPROT or EPFL fuses
• Erase General-Purpose Fuse Bit (EGPB) to BOOTPROT or EPFL fuses
• Program General-Purpose Fuse Byte (PGPFB) of fuse byte 2
• Erase All General-Purpose Fuses (EAGPF)
• Programming Error: A bad keyword and/or an invalid command have been written in the
FCMD register.
Section
15.5.3.
AT32UC3C
263
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