st7pmc2s6 STMicroelectronics, st7pmc2s6 Datasheet - Page 236

• Manufacturer Part Number: st7pmc2s6
• Description: 8-bit Mcu For Automotive With Nested Interrupts, Flash, 10-bit Adc, Brushless Motor Control, 5 Timers, Spi, Linsci?
• Manufacturer: STMicroelectronics

On-chip peripherals
Note:
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Table 102. Current window filter setting
1. Times are indicated for 4 MHz f
The current window filter is activated each time the PWM is turned ON. It blanks the output
of the current comparator during the time set by the CFW[2:0] bits in the MCFR register. The
reset value is 000b (blanking window off).
The current feedback filter sets the number of consecutive valid samples (when current is
above the limit) needed to generate the active CL event used to turn off the PWM. The reset
value is 1.
The sampling of the current comparator is done at f
Table 103. Current feedback filter setting
The ON time of the resulting PWM starts at the end of the measurement window (rising
edge), and ends either at the beginning of the next measurement window (falling edge), or
when the current level is reached.
Be careful that the current comparator is OFF until the CKE and/or DAC bits are set in the
MCRA register.
CFW2
CFF2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto
CFW1
CFF1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
PERIPH
CFW0
CFF0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
.
No. of feedback samples needed to turn off PWM
(1)
PERIPH
Blanking window length
Blanking window off
/4.
0.5 µs
1.5 µs
2.5 µs
3.5 µs
1 µs
2 µs
3 µs
1
2
3
4
5
6
7
8