S9S12P96J0MFT Freescale Semiconductor, S9S12P96J0MFT Datasheet - Page 244
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S9S12P96J0MFT
Manufacturer Part Number
S9S12P96J0MFT
Description
MCU 96K FLASH AUTO 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.S9S12P32J0MFT.pdf
(566 pages)
Specifications of S9S12P96J0MFT
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 ~ 125°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)
7.4.6
7.4.6.1
This mode is the default mode after System Reset or Power-On Reset.
The Bus Clock is based on the PLLCLK, the reference clock for the PLL is internally generated (IRC1M).
The PLL is configured to 64 MHz VCOCLK with POSTDIV set to 0x03. If locked (LOCK=1) this results
in a PLLCLK of 16 MHz and a Bus Clock of 8 MHz. The PLL can be re-configured to other bus
frequencies.
The clock sources for COP and RTI are based on the internal reference clock generator (IRC1M).
7.4.6.2
In this mode, the Bus Clock is based on the PLLCLK as well (like PEI). The reference clock for the PLL
is based on the external oscillator. The adaptive spike filter and detection logic which uses the VCOCLK
to filter and qualify the external oscillator clock can be enabled.
The clock sources for COP and RTI can be based on the internal reference clock generator or on the
external oscillator clock.
This mode can be entered from default mode PEI by performing the following steps:
Since the adaptive spike filter (filter and detection logic) uses the VCOCLK to continuously filter and
qualify the external oscillator clock, loosing PLL lock status (LOCK=0) means loosing the oscillator status
information as well (UPOSC=0).
The impact of loosing the oscillator status in PEE mode is as follows:
Application software needs to be prepared to deal with the impact of loosing the oscillator status at any
time.
244
1. Configure the PLL for desired bus frequency.
2. Optionally the adaptive spike filter and detection logic can be enabled by calculating the integer
3. Enable the external oscillator (OSCE bit).
4. Wait for the PLL being locked (LOCK = 1) and the oscillator to start-up and additionally being
5. Clear all flags in the CPMUFLG register to be able to detect any future status bit change.
6. Optionally status interrupts can be enabled (CPMUINT register).
•
value for the OSCFIL[4:0] bits and setting the bandwidth (OSCBW) accordingly.
qualified if the adaptive spike filter is enabled (UPOSC =1).
The PLLCLK is derived from the VCO clock (with its actual frequency) divided by four until the
PLL locks again.
System Clock Configurations
PLL Engaged Internal Mode (PEI)
PLL Engaged External Mode (PEE)
S12P-Family Reference Manual, Rev. 1.13
Freescale Semiconductor
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