11.5.41 CMU_SYNCBUSY - Synchronization Busy Register
Offset
Bit Position
0x140
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
6
5
4
3
2
1
0
Reset
0
0
0
0
0
0
0
0
0
0
0
0
Access
R
R
R
R
R
R
R
R
R
R
R
R
Name
Bit
Name
Reset
Access Description
31:30
Reserved
To ensure compatibility with future devices, always write bits to 0. More information in
29
LFXOBSY
0
R
LFXO Busy
Used to check the synchronization status of CMU_LFXOCTRL.
Value
Description
0
CMU_LFXOCTRL is ready for update
1
CMU_LFXOCTRL is busy synchronizing new value
28
HFXOBSY
0
R
HFXO Busy
Used to check the synchronization status of CMU_HFXOCTRL, CMU_HFXOSTARTUPCTRL, CMU_HFXOSTEADYSTA-
TECTRL, CMU_HFXOTIMEOUTCTRL, CMU_HFXOCTRL1.
Value
Description
0
CMU_HFXOCTRL, CMU_HFXOSTARTUPCTRL, CMU_HFXOSTEA-
DYSTATECTRL, CMU_HFXOTIMEOUTCTRL, CMU_HFXOCTRL1 are
ready for update
1
CMU_HFXOCTRL, CMU_HFXOSTARTUPCTRL, CMU_HFXOSTEA-
DYSTATECTRL, CMU_HFXOTIMEOUTCTRL, CMU_HFXOCTRL1 are
busy synchronizing new value. HFXO is also BUSY when these regis-
ters are actively being used (e.g. when HFXOENS=1).
27
LFRCOVREFBSY
0
R
LFRCO VREF Busy
Used to check the synchronization status of GMCCURTUNE.
Value
Description
0
CMU_LFRCOCTRL GMCCURTUNE bitfield is ready for update
1
CMU_LFRCOCTRL GMCCURTUNE bitfield is busy synchronizing new
value
26
LFRCOBSY
0
R
LFRCO Busy
Used to check the synchronization status of CMU_LFRCOCTRL.
Value
Description
0
CMU_LFRCOCTRL is ready for update
Reference Manual
CMU - Clock Management Unit
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