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ST72141K2 Datasheet(PDF) 52 Page - STMicroelectronics

No. de pieza ST72141K2
Descripción Electrónicos  8-BIT MCU WITH ELECTRIC-MOTOR CONTROL, ADC, 16-BIT TIMERS, SPI INTERFACE
PDF  132 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72141K2 Datasheet(HTML) 52 Page - STMicroelectronics

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MOTOR CONTROLLER (Cont’d)
Table 15. Modes permitting BEMF reading after Demagnetization (D event)
SR bit
(Sensor/
Sensor-
less Mode)
Demagnet-
ization
V0C1 bit
(Voltage/
Current
Mode)
OS[2:0]
bits
(PWM
Output
Config.)
Significant
PWM
Group
REO bit
(Read
BEMF on
Even/Odd
group)
BEMF reading permitted after D event
when:
0
After D
event
1
x00
Even
0
Sensorless mode, Current Mode, PWM
output only on Even group and
BEMF
read on Even group
x01
Odd
1
Sensorless mode, Current Mode, PWM
output only on Odd group and
BEMF read
on Odd group
x10
Even
0
Sensorless mode, Current Mode, PWM
output on alternate groups but
BEMF
read only on Even group
x10
Odd
1
Sensorless mode, Current Mode, PWM
output on alternate groups but
BEMF
read only on Odd group
0
000
Even
0
Sensorless mode, Voltage Mode, PWM
output only on Even group and
BEMF
read on Even group
001
Odd
1
Sensorless mode, Voltage Mode, PWM
output only on Odd group and
BEMF read
on Odd group
100
Even
0
Sensorless mode, Voltage Mode, PWM
output only on Even group and BEMF
Read on Even group
101
Odd
1
Sensorless mode, Voltage Mode, PWM
output only on Odd group and BEMF Read
on Odd group
110
Even
0
Sensorless mode, Voltage Mode, PWM
output on alternate groups but BEMF read
only on Even group
110
Odd
1
Sensorless mode, Voltage Mode, PWM
output on alternate groups but BEMF read
on Odd group
x
x11
Even and
Odd
x
Sensorless mode, Current or Voltage
Mode, PWM output on both groups, BEMF
read on either group
1
Not Used
x
xxx
Odd or
Even
x
Sensor Mode, in any PWM output configu-
ration, BEMF read on either group
Other cases
BEMF reading forbidden



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