MC68HC908GR8CP Freescale Semiconductor, MC68HC908GR8CP Datasheet - Page 119

• Manufacturer Part Number: MC68HC908GR8CP
• Description: IC MCU FLASH 8BIT 8MHZ 4K 28-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908GR8CP

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: LVD, POR, PWM
• Number Of I /o: 17
• Program Memory Size: 7.5KB (7.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

7.6.3 PLL Multiplier Select Register High
MC68HC908GR8 — Rev 4.0
MOTOROLA
Address:
ACQ — Acquisition Mode Bit
The PLL multiplier select register high (PMSH) contains the
programming information for the high byte of the modulo feedback
divider.
MUL11–MUL8 — Multiplier Select Bits
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
When the AUTO bit is set, ACQ is a read-only bit that indicates
whether the PLL is in acquisition mode or tracking mode. When the
AUTO bit is clear, ACQ is a read/write bit that controls whether the
PLL is in acquisition or tracking mode.
In automatic bandwidth control mode (AUTO = 1), the last-written
value from manual operation is stored in a temporary location and is
recovered when manual operation resumes. Reset clears this bit,
enabling acquisition mode.
These read/write bits control the high byte of the modulo feedback
divider that selects the VCO frequency multiplier N. (See
and
registers configures the modulo feedback divider the same as a value
of $0001. Reset initializes the registers to $0040 for a default multiply
value of 64.
For More Information On This Product,
1 = VCO frequency correct or locked
0 = VCO frequency incorrect or unlocked
1 = Tracking mode
0 = Acquisition mode
Figure 7-6. PLL Multiplier Select Register High (PMSH)
Programming the
$0038
Bit 7
0
0
Clock Generator Module (CGMC)
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= Unimplemented
6
0
0
PLL.) A value of $0000 in the multiplier select
5
0
0
4
0
0
MUL11
3
0
Clock Generator Module (CGMC)
MUL10
2
0
MUL9
CGMC Registers
1
0
PLL Circuits
Technical Data
MUL8
Bit 0
0
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