ST7MC2S4 STMicroelectronics, ST7MC2S4 Datasheet - Page 141

• Manufacturer Part Number: ST7MC2S4
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC,BRUSHLESS MOTOR CONTROL, 5 TIMERS, SPI, LINSCI(TM)
• Manufacturer: STMicroelectronics

MOTOR CONTROLLER (Cont’d)
Figure 73. Chronogram of Events (in Autoswitched Mode)
.
Voltage on phase A
Voltage on phase A
Voltage on phase B
Voltage on phase B
Voltage on phase C
Voltage on phase C
P signal when sampled
P signal when sampled
(Threshold value for
(Threshold value for
Input comparator)
Input comparator)
(Output of the
(Output of the
analog MUX)
analog MUX)
V
V
Z
Z
REF
REF
Cn processing
Cn processing
H
H
or Z
or Z
Wait for C
Wait for C
Wait for D
Wait for D
Wait for Z
Wait for Z
C
C
D
D
D
D
H
H
H
H
S
S
S
S
event
event
event
event
event
event
event
event
T
T
V
V
V
V
n
n
n
n
Z
Z
D
D
C
C
DD
DD
SS
SS
n
n
n
n
n
n
ST7MC1xx/ST7MC2xx
sampling
sampling
t
t
BEMF
BEMF
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