MCF5282CVM66 Datasheet, PDF (176/766 Pages) Freescale Semiconductor, Inc – MCF5282 and MCF5216 ColdFire® Microcontroller User’s Manual

Clock Module
9.6.2 Register Descriptions
This subsection provides a description of the clock module registers.
9.6.2.1 Synthesizer Control Register (SYNCR)
15
Field LOLRE
Reset
R/W
14
MFD2
13
MFD1
12
MFD0
11
LOCRE
0010_0001
R/W
10
RFD2
Field
Reset
R/W
Address
7
LOCEN
6
DISCLK
5
FWKUP
4
3
2
—
STPMD1 STPMD0
0000_0000
R/W
R
R/W
IPSBAR + 0x0012_0000
Figure 9-3. Synthesizer Control Register (SYNCR)
9
RFD1
8
RFD0
1
0
—
—
R
Table 9-4. SYNCR Field Descriptions
Bit(s)
15
Name
LOLRE
Description
Loss of lock reset enable. Determines how the system handles a loss of lock
indication. When operating in normal mode or 1:1 PLL mode, the PLL must be locked
before setting the LOLRE bit. Otherwise reset is immediately asserted. To prevent an
immediate reset, the LOLRE bit must be cleared before writing the MFD[2:0] bits or
entering stop mode with the PLL disabled.
1 Reset on loss of lock
0 No reset on loss of lock
Note: In external clock mode, the LOLRE bit has no effect.
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
9-6
Freescale Semiconductor