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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST10F296 датащи(PDF) 209 Page - STMicroelectronics |
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ST10F296 датащи(HTML) 209 Page - STMicroelectronics |
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209 / 346 page  Obsolete Product(s) - Obsolete Product(s) ST10F296E Real-time clock (RTC) 209/346 18.2 Programming the RTC RTC interrupt request signals are connected to Port 2, pad 10 (RTCSI) and pad 11 (RTCAI). An alternate function of Port 2 is to generate fast interrupts, firq[7:0]. To trigger firq[2] and firq[3] the EXICON register must be used. RTC interrupt requests are rising edge active and the EXICON register controls the external interrupt edge selection. The EXISEL register enables Port 2 alternate sources. RTC interrupts are alternate sources 2 and 3. The following Interrupt control registers are common with the CAPCOM1 unit: CC10IC (RTCSI) and CC11IC (RTCAI). EXICON register EXISEL register EXICON (F1C0h/E0h) ESFR Reset value: 0000h 15 14 13 12 11 10 9 8 7 6 5 4 3210 EXI7ES EXI6ES EXI5ES EXI4ES EXI3ES(1)(2) 1. EXI2ES and EXI3ES must be configured as 01b because RTC interrupt request lines are rising edge active. 2. Alarm interrupt request line (RTCAI) is linked with EXI3ES EXI2ES(1)(3) 3. Timed interrupt request line (RTCSI) is linked with EXI2ES EXI1ES EXI0ES R/W R/W R/W R/W R/W R/W R/W R/W EXISEL (F1DAh/EDh) ESFR Reset value: 0000h 15 14 13 12 11 10 9 8 7 6 5 4 3210 EXI7SS EXI6SS EXI5SS EXI4SS EXI3SS(1) 1. Alarm interrupt request (RTCAI) is linked with EXI3SS EXI2SS(2) 2. Timed interrupt request (RTCSI) is linked with EXI2SS EXI1SS EXI0SS R/W R/W R/W R/W R/W R/W R/W R/W Table 125. EXISEL register description Bit Bit name Function 15-0 EXIxSS External interrupt x source selection (x = 7 to 0) 00: Input from associated Port 2 pin 01: Input from ‘alternate source’(1) 10: Input from Port 2 pin ORed with ‘alternate source’(1) 11: Input from Port 2 pin ANDed with ‘alternate source’ 1. Advised configuration Obsolete Product(s) - Obsolete Product(s) |
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