Datasheet

58
32133D–11/2011
UC3D
These fuses should never be programmed.
8.9.1.1 Default Fuse Value
The devices are shipped with the FGPFRLO register value: 0xFFF5FFFF:
• BODEN fuses set to 11.
• BODHYST fuse set to 1. The BOD hysteresis is enabled.
• BODLEVEL fuses set to 11111. BOOTPROT fuses set to 010. The bootloader protected size
is 8KBytes.
• EPFL fuse set to 1. External privileged fetch is not locked.
• Reserved fuses set to 1.
• LOCK fuses set to 1111111111111111. No region locked.
After the JTAG or aWire chip erase command, the FGPFR register value is 0xFFFFFFFF.
8.9.2 First Word of the User Page (Address= 0x80800000)
WDTAUTO: WatchDog Timer Auto Enable at Startup
0: The WDT is automatically enabled at startup.
1: The WDT is not automatically enabled at startup.
Please refer to the WDT chapter for detail about timeout settings when the WDT is automatically
enabled.
8.9.2.1 Default user page first word value
The devices are shipped with the User page erased (all bits 1):
• WDTAUTO set to 1, WDT disabled.
8.10 Bootloader Configuration
The bootloader uses two words in the flash User page to store its configuration:
31 30 29 28 27 26 25 24
- -------
23 22 21 20 19 18 17 16
- -------
15 14 13 12 11 10 9 8
- -------
7 6543210
- ------WDTAUTO