MC9S12C32CFUE16 Freescale Semiconductor, MC9S12C32CFUE16 Datasheet - Page 59

• Manufacturer Part Number: MC9S12C32CFUE16
• Description: IC MCU 32K FLASH 16MHZ 80-QFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12C32CFUE16

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: CAN, EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 60
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Processor Series: S12C
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 2 KB
• Interface Type: CAN/SCI/SPI
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 60
• Number Of Timers: 8
• Operating Supply Voltage: - 0.3 V to + 6.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: M68EVB912C32EE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8-ch x 10-bit
• For Use With: CML12C32SLK - KIT STUDENT LEARNING 16BIT HCS12
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

The security byte resides in a portion of the Flash array.
Check the Flash Block User Guide for more details on the security configuration.
1.5.2.2
1.5.2.2.1
This will be the most common usage of the secured part. Everything will appear the same as if the part was
not secured with the exception of BDM operation. The BDM operation will be blocked.
1.5.2.2.2
The user may wish to execute from external space with a secured microcontroller. This is accomplished
by resetting directly into expanded mode. The internal FLASH will be disabled. BDM operations will be
blocked.
1.5.2.3
In order to unsecure the microcontroller, the internal FLASH must be erased. This can be done through an
external program in expanded mode or via a sequence of BDM commands. Unsecuring is also possible via
the Backdoor Key Access. Refer to Flash Block Guide for details.
Once the user has erased the FLASH, the part can be reset into special single chip mode. This invokes a
program that verifies the erasure of the internal FLASH. Once this program completes, the user can erase
and program the FLASH security bits to the unsecured state. This is generally done through the BDM, but
the user could also change to expanded mode (by writing the mode bits through the BDM) and jumping to
an external program (again through BDM commands). Note that if the part goes through a reset before the
security bits are reprogrammed to the unsecure state, the part will be secured again.
1.5.3
The microcontroller features three main low power modes. Consult the respective Block User Guide for
information on the module behavior in stop, pseudo stop, and wait mode. An important source of
information about the clock system is the Clock and Reset Generator User Guide (CRG).
1.5.3.1
Executing the CPU STOP instruction stops all clocks and the oscillator thus putting the chip in fully static
mode. Wake up from this mode can be done via reset or external interrupts.
1.5.3.2
This mode is entered by executing the CPU STOP instruction. In this mode the oscillator is still running
and the real time interrupt (RTI) or watchdog (COP) sub module can stay active. Other peripherals are
turned off. This mode consumes more current than the full stop mode, but the wake up time from this mode
is significantly shorter.
Freescale Semiconductor
Low-Power Modes
Operation of the Secured Microcontroller
Unsecuring the Microcontroller
Stop
Pseudo Stop
Normal Single Chip Mode
Executing from External Memory
MC9S12C-Family / MC9S12GC-Family
Rev 01.24
Chapter 1 MC9S12C and MC9S12GC Device Overview (MC9S12C128)
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