MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 294

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

8.12.3 Change of Lock Interrupt Register (COLIR)
U = Unaffected by reset
8.12.4 VDDSRAM Control Register (VSRMCR)
MPC555
USER’S MANUAL
COLIR — Change of Lock Interrupt Register
RESET:
MSB
Bit(s)
Bit(s)
27:31
10:15
0
0
0:7
26
10
8
9
The COLIR is 16-bit read/write register. It controls the change of lock interrupt gener-
ation, and is used for reporting a loss of lock interrupt source. It contains the interrupt
request level and the interrupt status bit. This register is readable and writable at any
time. A status bit is cleared by writing a one (writing a zero does not affect a status bit’s
value). The COLIR is memory mapped into the MPC555 / MPC556 USIU register map.
This register contains control bits for enabling or disabling the VDDSRAM supply de-
tection circuit. There are also four bits that indicate the failure detection. All four bits
have the same function and are required to improve the detection capability in extreme
cases.
/
1
0
MPC556
COLIRQ
COLIS
COLIE
Name
Name
DIVF
—
—
—
2
0
Table 8-10 PLPRCR Bit Descriptions (Continued)
3
0
COLIRQ
Reserved
The DIVF bits control the value of the pre-divider in the SPLL circuit. The DIVF bits can be
read and written at any time. However, the DIVF field can be write-protected by setting the
MF and pre-divider lock (MFPDL) bit in the SCCR. Changing the DIVF bits causes the SPLL
to lose lock.
Change of lock interrupt request level. These bits determine the interrupt priority level of the
change of lock. To specify certain level, the appropriate one of these bits should be set.
If set (“one”), the bit indicates that a change in the PLL lock status was detected. The PLL
was locked and lost lock, or the PLL was unlocked and got locked. The bit should be cleared
by writing a one.
Reserved
Change of Lock Interrupt enable. If COLIE bit is asserted, an interrupt will generate when the
COLIS bit is asserted.
0 = Change of lock Interrupt disable
1 = Change of lock Interrupt enable
Reserved
4
0
Table 8-11 COLIR Bit Descriptions
CLOCKS AND POWER CONTROL
5
0
Rev. 15 October 2000
6
0
7
0
COLIS
8
0
Description
Description
served
Re-
9
0
COLIE
10
U
11
U
12
U
Reserved
13
U
0x2F C28C
MOTOROLA
14
U
LSB
15
8-34
U