MC9S12P64VQK Freescale Semiconductor, MC9S12P64VQK Datasheet - Page 243

• Manufacturer Part Number: MC9S12P64VQK
• Description: 16-bit Microcontrollers - MCU 16 BIT 64K FLASH
• Manufacturer: Freescale Semiconductor

Specifications of MC9S12P64VQK

• Rohs: yes
• Core: S12
• Processor Series: MC9S12P
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 64 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 4 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 5 V
• Operating Temperature Range: - 40 C to 105 C
• Package / Case: QFP-80
• Mounting Style: SMD/SMT
• Interface Type: I2C, SCI, SPI
• Program Memory Type: Flash

The use of the filter function is only possible if the VCOCLK-to-OSCCLK ratio divided by two ((f
f
If enabled, the oscillator filter is sampling the incoming oscillator clock signal (EXTAL) with the
VCOCLK frequency.
Using VCOCLK, a time window is defined during which an edge of the OSCCLK is expected. In case of
OSCBW = 1 the width of this window is three VCOCLK cycles, if the OSCBW = 0 it is one VCOCLK
cycle.
The noise detection is active for certain combinations of OSCFILT[4:0] and OSCBW bit settings as shown
in
Freescale Semiconductor
OSC
Table 7-24
)/2) is an integer number. This integer value must be written to the OSCFILT[4:0] bits.
If the VCOCLK frequency is higher than 25 MHz the wide bandwidth must
be selected (OSCBW = 1).
OSCFILT[4:0]
2 or 3
>=4
0
1
S12P-Family Reference Manual, Rev. 1.13
Table 7-24. Noise Detection Settings
OSCBW
0
1
x
x
x
NOTE
Detection
disabled
disabled
disabled
S12 Clock, Reset and Power Management Unit (S12CPMU)
active
active
disabled
active
active
active
active
Filter
VCO
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