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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST7MC1K2-Auto датащи(PDF) 277 Page - STMicroelectronics |
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ST7MC1K2-Auto датащи(HTML) 277 Page - STMicroelectronics |
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277 / 371 page  Obsolete Product(s) - Obsolete Product(s) ST7MC1K2-Auto, ST7MC1K6-Auto, ST7MC2S4-Auto, ST7MC2S6-Auto On-chip peripherals 277/371 Repetition counter register (MREP) Compare phase W preload register high (MCPWH) Compare phase W preload register low (MCPWL) MREP Reset value: 0000 0000 (00h) 7 654 32 10 REP[7:0] R/W Table 145. MREP register description Bit Name Function 7:0 REP[7:0] Repetition counter value (N) This register allows the user to set up the update rate of the PWM counter compare register (that is, periodic transfers from preload to active registers), as well as the PWM Update interrupt generation rate, if these interrupts are enabled. Each time the MREP related down-counter reaches zero, the compare registers are updated, a U interrupt is generated and it re-starts counting from the MREP value. After a microcontroller reset, setting the CKE bit in the MCRA register (that is, enabling the clock for the MTC peripheral) forces the transfer from the MREP preload register to its active register and generates a U interrupt. During run-time (while CKE bit = 1) a new value entered in the MREP preload register is taken into account after a U event. As shown in Figure 123, (N+1) value corresponds to: The number of PWM periods in edge-aligned mode The number of half PWM periods in center- aligned mode MCPWH Reset value: 0000 0000 (00h) 7 654 32 10 CPWH[7:0 R/W Table 146. MCPWH register description Bit Name Function 7:0 CPWH[7:0] Most significant byte of phase W preload value MCPWL Reset value: 0000 0000 (00h) 7 654 32 10 CPWL[7:3] Reserved R/W - Obsolete Product(s) - Obsolete Product(s) |
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