S9S12P64J0MFT Freescale Semiconductor, S9S12P64J0MFT Datasheet - Page 247
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S9S12P64J0MFT
Manufacturer Part Number
S9S12P64J0MFT
Description
MCU 64K FLASH AUTO 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.S9S12P32J0MFT.pdf
(566 pages)
Specifications of S9S12P64J0MFT
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
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K 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
Available stocks
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The internal reset of the MCU remains asserted while the reset generator completes the 768 PLLCLK
cycles long reset sequence. In case the RESET pin is externally driven low for more than these 768
PLLCLK cycles (External Reset), the internal reset remains asserted longer.
7.5.2.1
If the external oscillator is enabled (OSCE=1) in case of loss of oscillation or the oscillator frequency is
below the failure assert frequency f
generates a Clock Monitor Reset.In Full Stop Mode the external oscillator and the clock monitor are
disabled.
7.5.2.2
The COP (free running watchdog timer) enables the user to check that a program is running and
sequencing properly. When the COP is being used, software is responsible for keeping the COP from
timing out. If the COP times out it is an indication that the software is no longer being executed in the
intended sequence; thus COP reset is generated.
The clock source for the COP is either IRCCLK or OSCCLK depending on the setting of the
COPOSCSEL bit. In Stop Mode with PSTP=1 (Pseudo Stop Mode), COPOSCSEL=1 and PCE=1 the COP
continues to run, else the COP counter halts in Stop Mode.
Three control bits in the CPMUCOP register allow selection of seven COP time-out periods.
When COP is enabled, the program must write $55 and $AA (in this order) to the CPMUARMCOP
register during the selected time-out period. Once this is done, the COP time-out period is restarted. If the
program fails to do this and the COP times out, a COP reset is generated. Also, if any value other than $55
or $AA is written, a COP reset generated.
Freescale Semiconductor
Clock Monitor Reset
Computer Operating Properly Watchdog (COP) Reset
PLLCLK
RESET
S12P-Family Reference Manual, Rev. 1.13
CMFA
Figure 7-37. RESET Timing
(see device electrical characteristics for values), the S12CPMU
S12_CPMU drives
RESET pin low
512 cycles
)
(
f
VCORST
S12 Clock, Reset and Power Management Unit (S12CPMU)
S12_CPMU releases
RESET pin
256 cycles
f
VCORST
)
(
possibly
RESET
driven low
externally
)
(
247
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