MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 619

• Manufacturer Part Number: MC56F8257MLH
• Description: DSC 64K FLASH 60MHZ 64-LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxxr

Specifications of MC56F8257MLH

• Core Processor: 56800E
• Core Size: 16-Bit
• Speed: 60MHz
• Connectivity: CAN, I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Ram Size: 4K x 16
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x12b, D/A 1x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 105°C
• Package / Case: 64-LQFP
• Product: DSCs
• Processor Series: 56800E
• Core: 56800E
• Device Million Instructions Per Second: 60 MIPs
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 54
• Data Ram Size: 8 KB
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

The back-door method of unsecuring the device has no effect on the program and erase
protections defined in the protection register.
20.3.10.3 JTAG Lockout Recovery
To unsecure a secured device, mass erase the flash memory by using a sequence of JTAG
commands. On the next reset, the part will be unsecured.
See the information about security features in the device's data sheet.
20.4 Resets
The flash module responds to a system reset.
20.5
20.5.1 General
The flash module can generate an interrupt when all flash commands are completed,
when the data and command buffers are empty, or when an access error occurs.
20.5.2 Interrupt Operation
The following figure outlines the operation of the interrupt request generated by the flash
module. The flash module interrupt request lines are connected to the Interrupt
Controller. Software can also be used to poll the CCIF, CBEIF, and ACCERR flags.
This system uses the CBEIE, CCIE, and AEIE bits in the configuration register to enable
interrupt generation.
Freescale Semiconductor
Interrupts
The user application must execute the back-door access that
disables flash security at run-time, according to the proper
access sequence provided in the preceding directions.
Otherwise, the flash security is not opened, and therefore the
code after this access operation will not be executed.
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
Preliminary
NOTE
Chapter 20 Flash Memory (HFM)
619