MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 481

• 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

21.5
The ADC module is disabled during reset, stop2 or when the ADCHn bits are all high. The module is idle
when a conversion has completed and another conversion has not been initiated. When idle and the
asynchronous clock output enable is disabled (ADACKEN=0), the module is in its lowest power state. The
ADC can perform an analog-to-digital conversion on any of the software selectable channels. All modes
perform conversion by a successive approximation algorithm.
To meet accuracy specifications, the ADC module must be calibrated using the on chip calibration
function. Calibration is recommended to be done after any reset. See
perform calibration.
When the conversion is completed, the result is placed in the data registers (ADCRHn and ADCRLn). The
conversion complete flag (COCOn) is then set and an interrupt is generated if the respective conversion
complete interrupt has been enabled (AIENn=1).
The ADC module has the capability of automatically comparing the result of a conversion with the
contents of the compare value registers. The compare function is enabled by setting the ACFE bit and
operates with any of the conversion modes and configurations.
Freescale Semiconductor
ADPC31
ADPC30
ADPC29
ADPC28
ADPC27
ADPC26
ADPC25
ADPC24
Field
7
6
5
4
3
2
1
0
Functional Description
ADC Pin Control 31 - ADPC31 controls the pin associated with channel AD31.
0 AD31 pin I/O control enabled
1 AD31 pin I/O control disabled
ADC Pin Control 30 - ADPC30 controls the pin associated with channel AD30.
0 AD30 pin I/O control enabled
1 AD30 pin I/O control disabled
ADC Pin Control 29 - ADPC29 controls the pin associated with channel AD29.
0 AD29 pin I/O control enabled
1 AD29 pin I/O control disabled
ADC Pin Control 28 - ADPC28 controls the pin associated with channel AD28.
0 AD28 pin I/O control enabled
1 AD28 pin I/O control disabled
ADC Pin Control 27 - ADPC27 controls the pin associated with channel AD27.
0 AD27 pin I/O control enabled
1 AD27 pin I/O control disabled
ADC Pin Control 26 - ADPC26 controls the pin associated with channel AD26.
0 AD26 pin I/O control enabled
1 AD26 pin I/O control disabled
ADC Pin Control 25 - ADPC25 controls the pin associated with channel AD25.
0 AD25 pin I/O control enabled
1 AD25 pin I/O control disabled
ADC Pin Control 24 - ADPC24 controls the pin associated with channel AD24.
0 AD24 pin I/O control enabled
1 AD24 pin I/O control disabled
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Table 21-16. APCTL4 Register Field Descriptions
Description
Section 21.5.7
Analog-to-Digital Converter (S08ADC16)
for details on how to
21-25