MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 102

• 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

Memory
successfully launched, the FCCF flag in the FxSTAT register will set after the mass erase operation has
completed.
3-46
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Clock Register
Written
Check
Bit Polling for
Command Completion
Check
Command
Buffer Empty Check
Access Error and
Protection Violation
Check
Read: FxCDIV register
Figure 3-14. Example Mass Erase Command Flow
2.
3.
1.
yes
FDIVLD
Write: FxCMD register
Mass Erase Command 0x41
Write: FxSTAT register
Clear FCBEF 0x80
Write: Flash Memory Address
and Dummy Data
START
Set?
Read: FxSTAT register
Read: FxSTAT register
FACCERR/FPVIOL
yes
FCBEF
yes
no
FCCF
Set?
Set?
EXIT
Write: FxCDIV register
Set?
no
no
yes
no
Write: FxSTAT register
Clear FACCERR/FPVIOL 0x30
Note: FxCDIV needs to
be set after each reset
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