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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STS1TXQTR датащи(PDF) 53 Page - STMicroelectronics |
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STS1TXQTR датащи(HTML) 53 Page - STMicroelectronics |
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53 / 70 page  DocID025109 Rev 1 53/70 STS1TX MCU interface The only available analog output is the temperature sensor, see Section 8.8. 10.4 MCU clock The STS1TX can directly provide the system clock to the MCU in order to avoid the need for an additional crystal. The clock signals for the MCU can be available on the GPIO pins. The source oscillator can be the internal RCO or the XO depending on the active state. When XO is active, it is the source clock (the RCO is not available in this condition). In addition, different ratios are available and programmable through the MCU_CK_CONF configuration register, as described in Table 32. 3 Wakeup from external input (sensor output) 4 External clock @ 34.7 kHz (used for LDC modes timing) From 5 to 31 Not used Table 31. Digital inputs (continued) I/O selection Input signal Table 32. MCU_CK_CONF configuration register MCU_CK_CONF[4:0] Clock source Division ratio XO_RATIO RCO_RATIO Don’t care 0 RCO 1 1 1/128 0 Don’t care XO 1 1 2/3 2 1/2 3 1/3 4 1/4 5 1/6 6 1/8 71/12 81/16 91/24 10 1/36 11 1/48 12 1/64 13 1/96 14 1/128 15 1/192 |
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