mcf5282 Freescale Semiconductor, Inc, mcf5282 Datasheet - Page 176

• Manufacturer Part Number: mcf5282
• Manufacturer: Freescale Semiconductor, Inc

Clock Module
9.6.2
This subsection provides a description of the clock module registers.
9.6.2.1
9-6
Bit(s)
15
Address
Register Descriptions
Reset
Reset
Synthesizer Control Register (SYNCR)
Field
Field
R/W
R/W
LOLRE
Name
LOCEN
LOLRE
15
7
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Figure 9-3. Synthesizer Control Register (SYNCR)
DISCLK
MFD2
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.
R/W
14
6
Table 9-4. SYNCR Field Descriptions
FWKUP
MFD1
13
5
IPSBAR + 0x0012_0000
MFD0
—
12
R
0010_0001
4
0000_0000
R/W
Description
STPMD1
LOCRE
11
3
R/W
STPMD0
RFD2
10
2
RFD1
—
Freescale Semiconductor
9
1
R
RFD0
—
8
0