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ST7MC1K2 数据表(PDF) 273 Page - STMicroelectronics |
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ST7MC1K2 数据表(HTML) 273 Page - STMicroelectronics |
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273 / 371 page  Obsolete Product(s) - Obsolete Product(s) ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto On-chip peripherals 273/371 Motor D event filter register (MDFR) 2:0 CFW[2:0] Current window filter bits These bits select the length of the blanking window activated each time PWM is turned on(2): 000: blanking window = off 001: blanking window = 0.5µs 010: blanking window = 1µs 011: blanking window = 1.5µs 100: blanking window = 2µs 101: blanking window = 2.5µs 110: blanking window = 3µs 111: blanking window = 3.5µs The filter blanks the output of the current comparator. 1. Sampling is done at fPERIPH/4. 2. Times are indicated for 4 MHz fPERIPH. MDFR Reset value: 0000 1111 (0Fh) 7 654 32 10 DEF[3:0] DWF[3:0] R/W R/W Table 139. MDFR register description Bit Name Function 7:4 DEF[3:0] D event filter bits These bits select the number of valid consecutive D events (when the D event is detected) needed to generate the active event. See Table 140. 3:0 DWF[3:0] D window filter bits These bits select the length of the blanking window activated at each C event. The filter blanks the D event detection. See Table 141. Table 140. D event filter setting(1) DEF3 DEF2 DEF1 DEF0 D event samples SR = 1 0000 1 No D event filter 0001 2 0010 3 0011 4 0100 5 0101 6 0110 7 0111 8 1000 9 Table 138. MCFR register description (continued) Bit Name Function Obsolete Product(s) - Obsolete Product(s) |
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