ST7FMC2S6T3 STMicroelectronics, ST7FMC2S6T3 Datasheet - Page 237

• Manufacturer Part Number: ST7FMC2S6T3
• Description: IC MCU 8BIT 32K FLASH 44-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FMC2S6T3

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LINSCI, SPI
• Peripherals: LVD, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 26
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-LQFP
• Processor Series: ST7FMC2x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 60
• Number Of Timers: 3
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7MC-KIT/BLDC, ST7MDT50-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 16 Channel
• For Use With: 497-8402 - BOARD EVAL COMPLETE INVERTER497-8400 - KIT IGBT PWR MODULE CTRL ST7MC497-6408 - BOARD EVAL BLDC SENSORLESS MOTOR497-4734 - EVAL KIT 3KW POWER DRIVER BOARD497-4733 - EVAL KIT 1KW POWER DRIVER BOARD497-4732 - EVAL KIT 300W POWER DRIVER BOARD497-4731 - EVAL KIT PWR DRIVER CONTROL BRD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

10-BIT A/D CONVERTER (ADC) (Cont’d)
10.8.3.3 Digital A/D Conversion Result
The conversion is monotonic, meaning that the re-
sult never decreases if the analog input does not
and never increases if the analog input does not.
If the input voltage (V
(high-level voltage reference) then the conversion
result is FFh in the ADCDRMSB register and 03h
in the ADCDRLSB register (without overflow indi-
cation).
If the input voltage (V
level voltage reference) then the conversion result
in the ADCDRMSB and ADCDRLSB registers is
00 00h.
The A/D converter is linear and the digital result of
the conversion is stored in the ADCDRMSB and
ADCDRLSB registers. The accuracy of the con-
version is described in the Electrical Characteris-
tics Section.
R
for an analog input signal. If the impedance is too
high, this will result in a loss of accuracy due to
leakage and sampling not being completed in the
alloted time.
R
mented in the device between V
AIN
REF
is the maximum recommended impedance
is the value of the resistive bridge imple-
AIN
AIN
) is lower than V
) is greater than V
REF+
and V
REF-
REF-.
(low-
REF+
10.8.3.4 A/D Conversion
The analog input ports must be configured as in-
put, no pull-up, no interrupt. Refer to the «I/O
ports» chapter. Using these pins as analog inputs
does not affect the ability of the port to be read as
a logic input. If the application used the high-im-
pedance analog inputs, then the sample time
should be stretched by setting the ADSTS bit in
the MCCBCR register.
In the ADCCSR register:
ADC Conversion mode
In the ADCCSR register:
– Set the ADON bit to enable the A/D converter
– The EOC bit is kept low by hardware during the
Note: Changing the A/D channel during conver-
sion will stop the current conversion and start con-
version of the newly selected channel.
and to start the conversion. From this time on,
the ADC performs a continuous conversion of
the selected channel.
conversion.
– Select the CS[3:0] bits to assign the analog
channel to convert.
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