User manual
...the world's most energy friendly microcontrollers
2012-04-24 - Giant Gecko Family - d0053_Rev0.96 146
www.energymicro.com
11.5.12 CMU_STATUS - Status Register
Offset Bit Position
0x02C
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
1
0
0
0
0
0
0
0
0
1
1
Access
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Name
USBCLFRCOSEL
USBCLFXOSEL
USBCHFCLKSEL
CALBSY
LFXOSEL
LFRCOSEL
HFXOSEL
HFRCOSEL
LFXORDY
LFXOENS
LFRCORDY
LFRCOENS
AUXHFRCORDY
AUXHFRCOENS
HFXORDY
HFXOENS
HFRCORDY
HFRCOENS
Bit Name Reset Access Description
31:18 Reserved
To ensure compatibility with future devices, always write bits to 0. More information in Section 2.1 (p. 3)
17 USBCLFRCOSEL 0 R USBC LFRCO Selected
LFRCO is selected (and active) as HFCORECLK
USBC
.
16 USBCLFXOSEL 0 R USBC LFXO Selected
LFXO is selected (and active) as HFCORECLK
USBC
.
15 USBCHFCLKSEL 0 R USBC HFCLK Selected
HFCLK is selected (and active) as HFCORECLK
USBC
.
14 CALBSY 0 R Calibration Busy
Calibration is on-going.
13 LFXOSEL 0 R LFXO Selected
LFXO is selected as HFCLK clock source.
12 LFRCOSEL 0 R LFRCO Selected
LFRCO is selected as HFCLK clock source.
11 HFXOSEL 0 R HFXO Selected
HFXO is selected as HFCLK clock source.
10 HFRCOSEL 1 R HFRCO Selected
HFRCO is selected as HFCLK clock source.
9 LFXORDY 0 R LFXO Ready
LFXO is enabled and start-up time has exceeded.
8 LFXOENS 0 R LFXO Enable Status
LFXO is enabled.
7 LFRCORDY 0 R LFRCO Ready
LFRCO is enabled and start-up time has exceeded.
6 LFRCOENS 0 R LFRCO Enable Status
LFRCO is enabled.
5 AUXHFRCORDY 0 R AUXHFRCO Ready
AUXHFRCO is enabled and start-up time has exceeded.
4 AUXHFRCOENS 0 R AUXHFRCO Enable Status
AUXHFRCO is enabled.
3 HFXORDY 0 R HFXO Ready
HFXO is enabled and start-up time has exceeded.
2 HFXOENS 0 R HFXO Enable Status
HFXO is enabled.
1 HFRCORDY 1 R HFRCO Ready