MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 520

• 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

LCD Driver Module
Stop2 provides the lowest power consumption state where the LCD module is functional. To operate the
LCD in stop2 mode, use an external crystal.
24.1.5
Figure 24-1
24-4
LP
Wait
Stop2
Stop3
Mode
, Wait
Block Diagram
is a block diagram of the LCD module.
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Depending on the state of the LCDSTP bit, the LCD module can operate an LCD panel in stop2 mode. If
LCDSTP = 1, LCD module clock generation is turned off and the LCD module enters a power
conservation state and is disabled.If LCDSTP = 0, the LCD module can operate an LCD panel in stop2,
and the LCD module continues to display the current LCD panel contents based on the LCD operation
prior to the stop2 event.
If the LCD is enabled in stop2, the selected LCD clock source, OSCOUT, must be enabled to operate in
stop2.
The LCD frame interrupt does not cause the MCU to exit stop2.
Depending on the state of the LCDSTP bit, the LCD module can operate an LCD panel in stop3 mode. If
LCDSTP = 1, LCD module clock generation is turned off and the LCD module enters a power
conservation state and is disabled. If LCDSTP = 0, the LCD module can operate an LCD panel in stop3,
and the LCD module continues displaying the current LCD panel contents based on the LCD operation
prior to the stop3 event.
If the LCD is enabled in stop3, the selected LCD clock source, OSCOUT or the Alternate Clock, must be
enabled to operate in stop3.
In stop3 mode the LCD frame interrupt can cause the MCU to exit stop3.
Depending on the configuration, the LCD module can operate an LCD panel in wait mode. If LCDWAI =
1, the LCD module clock generation is turned off and the LCD module enters a power-conservation state
and is disabled. If LCDWAI = 0, the LCD module can operate an LCD panel in wait, and the LCD module
continues displaying the current LCD panel contents base on the LCDWF registers.
In wait mode, the LCD frame interrupt can cause the MCU to exit wait.
Table 24-2. LCD-Module Operation Modes
Operation
Freescale Semiconductor