PXD20RM Datasheet, PDF (218/1628 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

8.3.3.1.14 Auxiliary Clock 4 Select Control Register (CGM_AC4_SC)
Address 0xC3FE_03A0
Access: User read, Supervisor read/write, Test read/write
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R0 0 0 0
W
SELCTL
00000000
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 8-16. Auxiliary Clock 4 Select Control Register (CGM_AC4_SC)
This register is used to select the current clock source for the following clocks:
• Undivided: unused
• Divided by auxiliary clock 4 divider 0: DCULite clock
Table 8-17. CGM_AC4_SC field descriptions
Field
Description
SELCTL Auxiliary Clock 4 Source Selection Control — This value selects the current source for auxiliary clock
4.
0000 div. 16 MHz int. RC osc.
0001 div. 4-16 MHz ext. xtal osc.
0010 secondary PLL
0011 primary PLL/2
0100 reserved
0101 reserved
0110 reserved
0111 reserved
1000 reserved
1001 reserved
1010 reserved
1011 reserved
1100 reserved
1101 reserved
1110 reserved
1111 reserved
8-22
PXD20 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
Freescale Semiconductor