PXD20RM Datasheet, PDF (210/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

8.3.3.1.4 System Clock Select Status Register (CGM_SC_SS)
Address 0xC3FE_0378
Access: User read, Supervisor read, Test read
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0 0 0 0
SELSTAT
00000000
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
R0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 8-6. System Clock Select Status Register (CGM_SC_SS)
This register provides the current system clock source selection.
Table 8-7. System Clock Select Status Register (CGM_SC_SS) Field Descriptions
Field
Description
SELSTAT
System Clock Source Selection Status — This value indicates the current source for the system clock.
0000 16 MHz int. RC osc.
0001 reserved
0010 reserved
0011 div. 4-16 MHz ext. xtal osc.
0100 primary PLL/2
0101 reserved
0110 reserved
0111 reserved
1000 reserved
1001 reserved
1010 reserved
1011 reserved
1100 reserved
1101 reserved
1110 reserved
1111 system clock is disabled
8-14
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor