MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 25

• 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

1.2
The MCF51EM256 series devices contain a version of the V1 ColdFire platform that is optimized for area
and low power. The CPU implements ColdFire instruction set architecture revision C (ISA_C) with added
capabilities:
An integrated multi-master crossbar switch on the ColdFire system busses provides access to system
resources by the CPU.
For more details on the V1 ColdFire core, see
1.2.1
Table 1-5
registers:
1.2.2
System programmers use the supervisor programming model to implement operating system functions.
All accesses that affect the control features of ColdFire processors must be made in supervisor mode and
can be accessed only by privileged instructions. The supervisor programming model consists of the
registers available in user mode as well as the registers listed in
Freescale Semiconductor
•
•
•
•
•
Voltage Reference (VREF)
Voltage Regulator (VREG)
Interrupt Request (IRQ)
Programmable Delay Block (PDB)
System Integration Module (SIM)
Cyclic Redundancy Check
Flash Wrapper
GPIO
Port Control
Hardware MAC support for 16×16 ± 32 and 32×32 ± 32 bit multiply-accumulate operations (32-bit
accumulator)
Upward compatibility with all other ColdFire cores (V2–V5)
16 general-purpose 32-bit registers (D0–D7, A0–A7)
32-bit program counter (PC)
8-bit condition code register (CCR)
V1 ColdFire Core
illustrates the integer portion of the user programming model. It consists of the following
User Programming Model
Supervisor Programming Model
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Table 1-4. Versions of On-Chip Modules (continued)
Module
Chapter 8, “ColdFire Core.”
Table
1-5.
Version
Device Overview
1
1
3
1
1
3
1
2
1
1-7