MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 141

• 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

Chapter 5
Rapid GPIO (RGPIO)
5.1
Introduction
The Rapid GPIO (RGPIO) module provides a 16-bit general-purpose I/O module directly connected to the
processor’s high-speed 32-bit local bus. This connection plus support for single-cycle, zero wait-state data
transfers allows the RGPIO module to provide improved pin performance when compared to more
traditional GPIO modules located on the internal slave peripheral bus.
Many of the pins associated with a device may be used for several different functions. Their primary
functions are to provide external interfaces to access off-chip resources. When not used for their primary
function, many of the pins may be used as general-purpose digital I/O (GPIO) pins. The definition of the
exact pin functions and the affected signals is specific to each device. Every GPIO port, including the
RGPIO module, has registers that configure, monitor, and control the port pins.
Figure 5-1
shows the MCF51EM256/128 block diagram with the RGPIO highlighted.
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Freescale Semiconductor
5-1