MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 471

• 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

21.4.7
The ADCSC3 register controls the calibration, continuous convert and hardware averaging functions of
the ADC module.
Freescale Semiconductor
REFSEL
ACREN
ACFGT
Field
[1:0]
1:0
4
3
Reset:
W
R
Status and Control Register 3 (ADCSC3)
Compare Function Greater Than Enable - ACFGT configures the compare function to check the conversion
result relative to the compare value register(s) (ADCCV1H:ADCCV1L and ADCCV2H:ADCCV2L) based upon
the value of ACREN. The ACFE bit must be set for ACFGT to have any effect. The compare function modes are
further detailed in
0 Configures Less Than Threshold, Outside Range Not Inclusive and Inside Range Not Inclusive functionality
1 Configures GreaterThan Or EqualTo Threshold, Outside Range Inclusive and Inside Range Inclusive
Compare Function Range Enable - ACREN configures the compare function to check the conversion result of
the input being monitored is either between or outside the range formed by the compare value registers
(ADCCV1H:ADCCV1L and ADCCV2H:ADCCV2L) determined by the value of ACFGT.The ACFE bit must be set
for ACFGT to have any effect. The compare function modes are further detailed in
0 Range function disabled. Only the compare value 1 register (ADCCV1H:ADCCV1L) is compared.
1 Range function enabled. Both compare value registers (ADCCV1H:ADCCV1L and ADCCV2H:ADCCV2L) are
Voltage Reference Selection - REFSEL bits select the voltage reference source used for conversions.Refer to
Section 21.5.3
00 Default voltage reference pin pair (External pins V
01 Alternate reference pair (V
10 Internal bandgap reference and associated ground reference (V
11 Reserved - Selects default voltage reference (V
based on the values placed in the ADCCV1 and ADCCV2 registers.
functionality based on the values placed in the ADCCV1 and ADCCV2 registers.
compared.
depending on MCU configuration.Consult the module introduction for information on the Voltage Reference
specific to this MCU.
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
CAL
7
0
Table 21-11. ADCSC2 Register Field Descriptions (continued)
for more information on voltage reference selection.
Figure 21-12. Status and Control Register 3 (ADCSC3)
CALF
Table 21-24
0
6
ALTH
in
0
0
Section
5
and V
ALTL
21.5.6.
). This pair may be additional external pins or internal sources
0
0
4
Description
REFH
REFH
and V
ADCO
and V
0
3
REFL
REFL
) pin pair.
BGH
).
AVGE
and V
Analog-to-Digital Converter (S08ADC16)
0
2
BGL
Table 21-24
).
0
1
AVGS
in
Section
0
0
21.5.6.
21-15