ST7MC2N6 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST7MC2N6
STMicroelectronics
ST7MC2N6 Datasheet PDF : 309 Pages
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ST7MC1xx/ST7MC2xx
MOTOR CONTROLLER (Cont’d)
MOTOR Z EVENT FILTER REGISTER (MZFR)
Read/Write
Reset Value: 0000 1111 (0Fh)
7
6
5
4
3
2
1
0
ZEF3 ZEF2 ZEF1 ZEF0 ZWF3 ZWF2 ZWF1 ZWF0
Bits 7:4 = ZEF[3:0]: Z Event Filter bits
These bits select the number of valid consecutive
Z events (when the Z event is detected) needed to
generate the active event. Sampling is done at the
selected fSCF frequency (see Table 82.) or at
PWM frequency.
Table 80. Z Event filter Setting
ZEF3 ZEF2 ZEF1 ZEF0 Z event Samples
0
0
0
0
1
0
0
0
1
2
0
0
1
0
3
0
0
1
1
4
0
1
0
0
5
0
1
0
1
6
0
1
1
0
7
0
1
1
1
8
1
0
0
0
9
1
0
0
1
10
1
0
1
0
11
1
0
1
1
12
1
1
0
0
13
1
1
0
1
14
1
1
1
0
15
1
1
1
1
16
Bits 3:0 = ZWF[3:0]: Z Window Filter bits
These bits select the length of the blanking win-
dow activated at each D event. The filter blanks
the Z event detection until the end of the time win-
dow.
Table 81. Z Window filter Setting
D to Z window fil-
ZWF3 ZWF2 ZWF1 ZWF0 ter in Sensorless SR=1
Mode (SR=0)
0
0
0
0
5 µs
0
0
0
1
10 µs
0
0
1
0
15 µs
0
0
1
1
20 µs
0
1
0
0
25 µs
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
1
0
0
1
1
0
1
0
30 µs
35 µs
40 µs
60 µs
80 µs
100 µs
No
Win-
dow
Filter
after
D
event
1
0
1
1
120 µs
1
1
0
0
140 µs
1
1
0
1
160 µs
1
1
1
0
180 µs
1
1
1
1
200 µs
Note: Times are indicated for 4 MHz fPERIPH
226/309
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