MC9S12P96CFT Freescale Semiconductor, MC9S12P96CFT Datasheet - Page 234
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MC9S12P96CFT
Manufacturer Part Number
MC9S12P96CFT
Description
MCU 16BIT 96K FLASH 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.S9S12P32J0MFT.pdf
(566 pages)
Specifications of MC9S12P96CFT
Core Processor
HCS12
Core Size
16-Bit
Speed
32MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
96KB (96K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
6K x 8
Voltage - Supply (vcc/vdd)
1.72 V ~ 5.5 V
Data Converters
A/D 10x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-QFN Exposed Pad
Processor Series
S12P
Core
HCS12
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
KIT33812ECUEVME, DEMO9S12PFAME
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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S12 Clock, Reset and Power Management Unit (S12CPMU)
7.3.2.21
This registers configures the external oscillator (OSCLCP).
Read: Anytime
Write: If PROT=0 (CPMUPROT register) and PLLSEL=1 (CPMUCLKS register), then write anytime.
Else write has no effect.
234
0x02FA
OSCFILT
OSCBW
Reset
OSCE
Field
4-0
7
6
W
R
OSCE
Oscillator Enable Bit — This bit enables the external oscillator (OSCLCP). The UPOSC status bit in the
CPMUFLG register indicates when the oscillation is stable and OSCCLK can be selected as Bus Clock or source
of the COP or RTI. A loss of oscillation will lead to a clock monitor reset.
0 External oscillator is disabled.
1 External oscillator is enabled.Clock monitor is enabled.
Note: When starting up the external oscillator (either by programming OSCE bit to 1 or on exit from Full Stop
Oscillator Filter Bandwidth Bit — If the VCOCLK frequency exceeds 25 MHz wide bandwidth must be
selected.The Oscillator Filter is described in more detail at
0 Oscillator filter bandwidth is narrow (window for expected OSCCLK edge is one VCOCLK cycle).
1 Oscillator filter bandwidth is wide (window for expected OSCCLK edge is three VCOCLK cycles).
Oscillator Filter Bits — When using the oscillator a noise filter can be enabled, which filters noise from the
OSCCLK and detects if the OSCCLK is qualified or not (quality status shown by bit UPOSC).
The f
calculated integer value to enable the oscillator filter).
0x0000 Oscillator Filter disabled.
else Oscillator Filter enabled:
S12CPMU Oscillator Register (CPMUOSC)
0
7
REFCLK for PLL is IRCCLK.
REFCLK for PLL is the external oscillator clock divided by REFDIV.
Write to this register clears the LOCK and UPOSC status bits.
If the chosen VCOCLK-to-OSCCLK ratio divided by two is not an integer
number, then the filter can not be used and the OSCFILT[4:0] bits must be
set to 0.
VCO
Mode with OSCE bit is already 1) the software must wait for a minimum time equivalent to the startup-time
of the external oscillator t
-to- f
OSCBW
OSC
Figure 7-28. S12CPMU Oscillator Register (CPMUOSC)
0
6
ratio divided by two must be an integer value. The OSCFILT[4:0] bits must be set to the
Table 7-22. CPMUOSC Field Descriptions
S12P-Family Reference Manual, Rev. 1.13
0
0
5
UPOSC
before entering Pseudo Stop Mode.
NOTE.
NOTE.
0
4
Description
Section 7.4.5.2, “The Adaptive Oscillator
0
3
OSCFILT[4:0]
0
2
Freescale Semiconductor
0
1
Filter.
0
0
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