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ST7MC1K2-Auto датащи(PDF) 195 Page - STMicroelectronics |
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ST7MC1K2-Auto датащи(HTML) 195 Page - STMicroelectronics |
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195 / 371 page ![]() Obsolete Product(s) - Obsolete Product(s) ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto On-chip peripherals 195/371 Z event detection In sensorless mode, the Z window filter becomes active after each D event. It blanks out the Z event during the time window defined by the ZWF[3:0] bits in the MZFR register (see Table 86). The reset value is 200µs. This window filter becomes active after both hardware and software D events. The Z event filter becomes active after the Z window filter. It counts the number of consecutive Z events up to a limit defined by the ZEF[3:0] bits in the MZFR register. The reset value is 1. The Z bit is set when the counter limit is reached. Sampling is done at a selectable frequency (fSCF), see Table 166. The Z event filter is active only for a hardware Z event (ZH). For a simulated (ZS) event, it is forced to 1. Z event filter is also active in sensor mode. Figure 81. Z window and event filter flowchart 1110 15 No D event filter 1111 16 Table 85. D event filter setting (continued) DEF3 DEF2 DEF1 DEF0 D event limit SR = 1 D No End of blanking Z event? Sampling Limit = 1? Reset counter Increment counter Set the Z bit Counter = limit? Yes Window filter Event filter window? No No No Yes Yes Yes Obsolete Product(s) - Obsolete Product(s) |
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