ST7FMC2R6T6 STMicroelectronics, ST7FMC2R6T6 Datasheet - Page 160

• Manufacturer Part Number: ST7FMC2R6T6
• Description: MCU 8BIT 32K FLASH 64TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FMC2R6T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LINSCI, SPI
• Peripherals: LVD, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 44
• 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: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• 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: + 85 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
• Other names: 497-4868

ST7MC1xx/ST7MC2xx
MOTOR CONTROLLER (Cont’d)
Depending on the frequency and the duty cycle of
the PWM signal, the delay inserted before sam-
pling could cause it sample the signal OFF time in-
stead of the ON time. In this case an interrupt can
be generated and the sample will not be taken into
acount. When a sample occurs outside the PWM
signal ON time, the SOI bit in the MCONF register
is set and an interrupt request is generated if the
SOM bit is set in the MCONF register. This inter-
rupt is enabled only if a delay value has been set in
the DS[3:0] bits. In this case, the sampling is done
at the PWM frequency but only during the ON time
of the PWM signal.
in detail the generation of the sampling order when
the delay is added.
Figure 84. Adding the Delay to sample during ON time for Z detection
Figure 85. Sampling Out interrupt generation
160/309
1
PWM signal
Figure 84
PWM signal
T
Sampling
PWM OFF
time
and
Figure 85
T
Sampling
PWM OFF
time
Current
sample
DS[3:0]
shows
DS[3:0]
For complete flexibility, the possibility of sampling
at f
PWM signal is also available when the SPLG bit is
set as if there is a delay value in the DS[3:0] bits.
This means that when the sampling is to be per-
formed, after the delay a sampling window at f
frequency is opened until the next OFF time of the
PWM signal. The Sampling Out interrupt will be
generated if the delay added is longer than the
duty cycle of the PWM signal. As the SPLG bit is
set and a value has been put in the DS[3:0] bits,
no minimum off time is required for the PWM sig-
nal and it is automatically set to 0µs in current
mode. A true 100% duty cycle can be also set in
the 12-bit Timer in voltage mode.
in detail the sampling at f
ing ON time.
Current
sample
SO
DS[3:0]
SCF
high frequency during the ON time of the
SO
New sample during next
OFF time. Sample not taken into
account. SO interrupt generated.
sample
New
To interrupt generator
SCF
high frequency dur-
Figure 86
shows
SCF