MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 470

• 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

Analog-to-Digital Converter (S08ADC16)
21.4.6
The ADCSC2 register contains the conversion active, hardware/software trigger select, compare function
and voltage reference select of the ADC module.
21-14
ADTRG
ADACT
ACFE
Field
7
6
5
Reset:
Reset:
Reset:
W
W
W
R
R
R
Status and Control Register 2 (ADCSC2)
Conversion Active - ADACT indicates that a conversion or hardware averaging is in progress. ADACT is set
when a conversion is initiated and cleared when a conversion is completed or aborted.
0 Conversion not in progress
1 Conversion in progress
Conversion Trigger Select - ADTRG selects the type of trigger used for initiating a conversion. Two types of
trigger are selectable: software trigger and hardware trigger. When software trigger is selected, a conversion is
initiated following a write to ADCSC1A. When hardware trigger is selected, a conversion is initiated following the
assertion of the ADHWT input after a pulse of the ADHWTSn input.Refer to
on initiating conversions.
0 Software trigger selected
1 Hardware trigger selected
Compare Function Enable - ACFE enables the compare function.
0 Compare function disabled
1 Compare function enabled
ADACT
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
7
0
7
0
7
0
Figure 21-9. Compare Value 2 High Register (ADCCV2H)
Figure 21-10. Compare Value 2Low Register(ADCCV2L)
Figure 21-11. Status and Control Register 2 (ADCSC2)
ADTRG
Table 21-11. ADCSC2 Register Field Descriptions
0
0
0
6
6
6
ACFE
0
0
0
5
5
5
ACFGT
0
0
0
4
4
4
CV2[15:8]
Description
CV2[7:0]
ACREN
0
0
0
3
3
3
Section 21.5.5.1
0
0
0
0
2
2
2
Freescale Semiconductor
0
0
0
1
1
1
REFSEL
for more information
0
0
0
0
0
0