MC908MR8MPE Freescale Semiconductor, MC908MR8MPE Datasheet - Page 115
MC908MR8MPE
Manufacturer Part Number
MC908MR8MPE
Description
IC MCU 8BIT 8K FLASH 28-PDIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCHC908MR8VFAE.pdf
(372 pages)
Specifications of MC908MR8MPE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI
Peripherals
LVD, POR, PWM
Number Of I /o
12
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
28-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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8.4.2 Phase-Locked Loop Circuit (PLL)
8.4.2.1 PLL Circuits
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
$005C
$005D
$005E
Addr.
PLL Bandwidth Control Reg-
PLL Programming Register
Register Name
PLL Control Register
See page 126.
See page 129.
See page 131.
ister (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:
(PCTL)
(PPG)
•
•
Figure 8-2. CGM I/O Register Summary
Voltage-controlled oscillator (VCO)
Modulo VCO frequency divider
Read
Read
Read
Write
Write
Write
Re-
set:
Re-
set:
Re-
set:
Clock Generator Module (CGM)
:
:
:
:
:
:
AUTO
PLLIE
MUL7
Bit 7
R
0
0
0
= Reserved
LOCK
MUL6
PLLF
R
R
6
0
0
1
PLLON
MUL5
ACQ
5
1
0
1
MUL4
BCS
XLD
4
0
0
0
VRS7
Clock Generator Module (CGM)
R
R
3
1
1
0
0
0
VRS6
R
R
Functional Description
2
1
1
0
0
1
VRS5
Technical Data
R
R
1
1
1
0
0
1
VRS4
Bit 0
R
R
1
1
0
0
0
115
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