mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 109

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

Phase-Locked
Loop Circuit (PLL)
Circuits
5-cgm
MOTOROLA
PLL Programming Register (PPG)
PLL Bandwidth Control Register
PLL Control Register (PCTL)
Register Name
(PBWC)
The PLL is a frequency generator that can operate in either acquisition
mode or tracking mode, depending on the accuracy of the output
frequency. The PLL can change between acquisition and tracking
modes either automatically or manually.
The PLL consists of these circuits:
Reset:
Reset:
Reset:
Read:
Read:
Read:
Write:
Write:
Write:
Table 1. I/O Register Address Summary
Register
Address
Freescale Semiconductor, Inc.
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For More Information On This Product,
Voltage-controlled oscillator (VCO)
Modulo VCO frequency divider
Phase detector
Loop filter
Lock detector
Figure 2. I/O Register Summary
AUTO
Bit 7
PLLIE
MUL7
0
0
0
Clock Generator Module (CGM)
Go to: www.freescale.com
$001C
PCTL
= Unimplemented
LOCK
MUL6
PLLF
6
0
0
1
PLLON
MUL5
ACQ
5
1
0
1
PBWC
$001D
MUL4
BCS
XLD
4
0
0
0
$001E
PPG
VRS7
3
1
1
0
0
0
Clock Generator Module (CGM)
MC68HC08AZ60 — Rev 1.0
VRS6
2
1
0
1
1
0
Functional Description
VRS5
1
1
1
0
0
1
Bit 0
VRS4
1
1
0
0
0
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