ST7FMC1K2TC STMICROELECTRONICS [STMicroelectronics], ST7FMC1K2TC Datasheet - Page 225

• Manufacturer Part Number: ST7FMC1K2TC
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, BRUSHLESS MOTOR CONTROL, FIVE TIMERS, SPI, LINSCI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

MOTOR CONTROLLER (Cont’d)
MOTOR Z EVENT FILTER REGISTER (MZFR)
Read/Write
Reset Value: 0000 1111 (0Fh)
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 f
PWM frequency.
Table 80. Z Event filter Setting
ZEF3 ZEF2 ZEF1 ZEF0
ZEF3
7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
ZEF2
6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
SCF
ZEF1
5
frequency (see
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
ZEF0
4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
ZWF3 ZWF2 ZWF1 ZWF0
3
Z event Samples
Table
2
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
82.) or at
1
0
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
Note: Times are indicated for 4 MHz f
ZWF3 ZWF2 ZWF1 ZWF0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
D to Z window fil-
ter in Sensorless
Mode (SR=0)
ST7MC1/ST7MC2
100 µs
120 µs
140 µs
160 µs
180 µs
200 µs
10 µs
15 µs
20 µs
25 µs
30 µs
35 µs
40 µs
60 µs
80 µs
5 µs
PERIPH
225/308
SR=1
event
Filter
Win-
after
dow
No
D