MC56F8257MLH Freescale Semiconductor, MC56F8257MLH Datasheet - Page 587

• 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

Chapter 19
Cyclic Redundancy Check Generator (CRC)
19.1 Introduction
The Cyclic Redundancy Check (CRC) generator module uses the 16-bit CRC-CCITT
polynomial, x
code is calculated for 8 bits of data at a time and provides a simple check for all
accessible memory locations, whether they be in flash memory or RAM.
19.1.1 Features
Features of the CRC module include:
19.1.2 Modes of Operation
This section defines the CRC operation in run, wait, and stop modes.
Freescale Semiconductor
• Hardware CRC generator circuit using 16-bit shift register
• CRC16-CCITT compliancy with x
• Error detection for all single, double, odd, and most multi-bit errors
• Programmable initial seed value
• High-speed CRC calculation
• Optional ability to transpose input data and CRC result via transpose register,
• Run Mode - This is the basic mode of operation.
required on applications where bytes are in LSb (Least Significant bit) format.
16
+ x
12
+ x
MC56F825x/4x Reference Manual, Rev. 2, 10/2010
5
+ 1, to generate a CRC code for error detection. The 16-bit
16
Preliminary
+ x
12
+ x
5
+ 1 polynomial
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