MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 448

• Manufacturer Part Number: MCF51EM256CLL
• Description: IC MCU 32BIT 256KB FLASH 100LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr

Specifications of MCF51EM256CLL

• Core Processor: Coldfire V1
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LCD, LVD, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Processor Series: MCF51EM
• Core: ColdFire V1
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: RS-232, LIN
• Maximum Clock Frequency: 50 MHz
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: DEMOEM
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Cyclic Redundancy Check (CRC)
20.1.1
Features of the CRC module include:
20.1.2
This section defines the CRC operation in run, wait, and stop modes.
20-2
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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 feature to transpose input data and CRC result via transpose register, required on
applications where bytes are in LSb (Least Significant bit) format.
Run Mode — This is the basic mode of operation.
Wait Mode — The CRC module is operational.
Stop 1 and 2 Modes- The CRC module is not functional in these modes and will be put into its reset
state upon recovery from stop.
Stop 3 Mode — In this mode, the CRC module will go into a low power standby state. Any CRC
calculations in progress will stop and resume after the CPU goes into run mode.
Features
Modes of Operation
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
16
+ x
12
+ x
5
+ 1 polynomial
Freescale Semiconductor