S9S12G96F0MLH Freescale Semiconductor, S9S12G96F0MLH Datasheet - Page 408
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S9S12G96F0MLH
Manufacturer Part Number
S9S12G96F0MLH
Description
16-bit Microcontrollers - MCU 16BIT 96K FLASH
Manufacturer
Freescale Semiconductor
Datasheet
1.S9S12G96F0CLL.pdf
(1292 pages)
Specifications of S9S12G96F0MLH
Rohs
yes
Core
S12
Processor Series
MC9S12G
Data Bus Width
16 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
96 KB
Data Ram Size
8192 B
On-chip Adc
Yes
Operating Supply Voltage
3.13 V to 5.5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-64
Mounting Style
SMD/SMT
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
S9S12G96F0MLH
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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S12 Clock, Reset and Power Management Unit (S12CPMU)
10.4.6
10.4.6.1
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 50 MHz VCOCLK with POSTDIV set to 0x03. If locked (LOCK=1) this results
in a PLLCLK of 12.5 MHz and a Bus clock of 6.25 MHz. The PLL can be re-configured to other bus
frequencies.
The clock sources for COP and RTI can be based on the internal reference clock generator (IRC1M) or the
RC-Oscillator (ACLK).
10.4.6.2
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 clock sources for COP and RTI can be based on the internal reference clock generator or on the
external oscillator clock or the RC-Oscillator (ACLK).
This mode can be entered from default mode PEI by performing the following steps:
Loosing PLL lock status (LOCK=0) means loosing the oscillator status information as well (UPOSC=0).
The impact of loosing the oscillator status (UPOSC=0) 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.
10.4.6.3
In this mode, the Bus Clock is based on the external oscillator clock. The reference clock for the PLL is
based on the external oscillator.
The clock sources for COP and RTI can be based on the internal reference clock generator or on the
external oscillator clock or the RC-Oscillator (ACLK).
410
1. Configure the PLL for desired bus frequency.
2. Enable the external oscillator (OSCE bit).
3. Wait for oscillator to start-up and the PLL being locked (LOCK = 1) and (UPOSC =1).
4. Clear all flags in the CPMUFLG register to be able to detect any future status bit change.
5. Optionally status interrupts can be enabled (CPMUINT register).
•
•
The PLLCLK is derived from the VCO clock (with its actual frequency) divided by four until the
PLL locks again.
The OSCCLK provided to the MSCAN module is off.
System Clock Configurations
PLL Engaged Internal Mode (PEI)
PLL Engaged External Mode (PEE)
PLL Bypassed External Mode (PBE)
MC9S12G Family Reference Manual,
Rev.1.23
Freescale Semiconductor
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