224
32099I–01/2012
AT32UC3L016/32/64
13.6.17
Voltage Regulator Calibration Register
Name:
VREGCR
Access Type:
Read/Write
Reset Value:
-
SFV: Store Final Value
0: The register is read/write.
1: The register is read-only, to protect against further accidental writes.
This bit is cleared by a Power-on Reset.
INTPD: Internal Pull-down
This bit is used for test purposes only.
0: The voltage regulator output is not pulled to ground.
1: The voltage regulator output has a pull-down to ground.
POR33MASK: Power-on Reset 3.3V Output Mask
0: Power-on Reset 3.3V is not masked.
1: Power-on Reset 3.3V is masked.
POR33STATUS: Power-on Reset 3.3V Status
0: Power-on Reset is disabled.
1: Power-on Reset is enabled.
This bit is read-only. Writing to this bit has no effect.
POR33EN: Power-on Reset 3.3V Enable
0: Writing a zero to this bit disables the POR33 detector.
1: Writing a one to this bit enables the POR33 detector.
DEEPDIS: Disable Regulator Deep Mode
0: Regulator will enter deep mode in low-power sleep modes for lower power consumption.
1: Regulator will stay in full-power mode in all sleep modes for shorter start-up time.
FCD: Flash Calibration Done
0: The flash calibration will be redone after any reset.
1: The flash calibration will only be redone after a Power-on Reset.
This bit is cleared after a Power-on Reset.
This bit is set when the CALIB field has been updated by flash calibration after a reset.
CALIB: Calibration Value
Calibration value for Voltage Regulator. This is calibrated during production and should not be changed.
31
30
29
28
27
26
25
24
SFV
INTPD
-
DBG-
--
23
22
21
20
19
18
17
16
-
POR33MASK
POR33STAT
US
POR33EN
DEEPDIS
FCD
15
14
13
12
11
10
9
8
----
CALIB
76543210
ON
VREGOK
EN
-
SELVDD