4.2.18 PIOSCSTAT Register (Offset = 0x154) [reset = 0x00400040]
Precision Internal Oscillator Statistics (PIOSCSTAT)
This register provides the user information on the PIOSC calibration. A 32.768-kHz oscillator must be used as the Hibernation module clock source for the user to calibrate the PIOSC.
PIOSCSTAT is shown in Figure 4-24 and described in Table 4-30.
Return to Summary Table.
Figure 4-24 PIOSCSTAT Register
| 31 |
30 |
29 |
28 |
27 |
26 |
25 |
24 |
| RESERVED |
| R-0x0 |
|
| 23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
| RESERVED |
DT |
| R-0x0 |
R-0x40 |
|
| 15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
| RESERVED |
RESULT |
| R-0x0 |
R-0x0 |
|
| 7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
| RESERVED |
CT |
| R-0x0 |
R-0x40 |
|
Table 4-30 PIOSCSTAT Register Field Descriptions
| Bit |
Field |
Type |
Reset |
Description |
| 31-23 |
RESERVED |
R |
0x0 |
|
| 22-16 |
DT |
R |
0x40 |
Default Trim Value.
This field contains the default trim value. This value is loaded into the PIOSC after every full power up. |
| 15-10 |
RESERVED |
R |
0x0 |
|
| 9-8 |
RESULT |
R |
0x0 |
Calibration Result
0x0 = Calibration has not been attempted.
0x1 = The last calibration operation completed to meet 1% accuracy.
0x2 = The last calibration operation failed to meet 1% accuracy.
0x3 = Reserved
|
| 7 |
RESERVED |
R |
0x0 |
|
| 6-0 |
CT |
R |
0x40 |
Calibration Trim Value.
This field contains the trim value from the last calibration operation. After factory calibration, CT and DT are the same. |