Datasheet

112
32117D–AVR-01/12
AT32UC3C
8.6.15 Voltage Regulator Control Register
Name: VREGCTRL
Access Type: Read/Write
Offset: 0x0040
Reset Value: 0x00000000
• SFV: Store Final Value
0: The register is read/write.
1: The register is read-only, to protect against further accidental writes.
• VREG33CTL: 3.3 Voltage Regulator Control
Note that this register is protected by a lock. To write to this register the UNLOCK register has to be written first. Please
refer to the UNLOCK register description for details.
31 30 29 28 27 26 25 24
SFV-------
23 22 21 20 19 18 17 16
--------
15 14 13 12 11 10 9 8
--------
76543210
---- VREG33CTL -
Table 8-9. Operation mode of 3.3V Voltage Regulator
VREG33CTL Description
0x0 3.3V Regulator is ON
0x1 Reserved
0x2 Reserved
0x3 3.3V Regulator is OFF