S9S12P32J0MFT Freescale Semiconductor, S9S12P32J0MFT Datasheet - Page 237

• Manufacturer Part Number: S9S12P32J0MFT
• Description: MCU 128K FLASH AUTO 48-QFN
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of S9S12P32J0MFT

• 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: 128KB (128K 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

7.4
7.4.1
The PLL is used to generate a high speed PLLCLK based on a low frequency REFCLK.
The REFCLK is by default the IRCCLK which is trimmed to f
If using the oscillator (OSCE=1) REFCLK will be based on OSCCLK. For increased flexibility, OSCCLK
can be divided in a range of 1 to 16 to generate the reference frequency REFCLK using the REFDIV[3:0]
bits. Based on the SYNDIV[5:0] bits the PLL generates the VCOCLK by multiplying the reference clock
by a 2, 4, 6,... 126, 128. Based on the POSTDIV[4:0] bits the VCOCLK can be divided in a range of 1,2,
3, 4, 5, 6,... to 32 to generate the PLLCLK.
Freescale Semiconductor
.
If oscillator is enabled (OSCE=1)
If oscillator is disabled (OSCE=0)
f VCO
If PLL is locked (LOCK=1)
If PLL is not locked (LOCK=0)
If PLL is selected (PLLSEL=1)
Functional Description
=
Phase Locked Loop with Internal Filter (PLL)
2 f REF
×
Although it is possible to set the dividers to command a very high clock
frequency, do not exceed the specified bus frequency limit for the MCU.
×
(
SYNDIV
+
f PLL
f bus
1
f PLL
S12P-Family Reference Manual, Rev. 1.13
)
=
=
=
f REF
f REF
f PLL
------------ -
---------------------------------------- -
(
f VCO
---------------
POSTDIV
2
4
=
=
f VCO
------------------------------------
(
f IRC1M
REFDIV
NOTE
f OSC
+
1
)
+
1
S12 Clock, Reset and Power Management Unit (S12CPMU)
)
IRC1M_TRIM
=1MHz.
237