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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CC2430-RTR1-F32Z датащи(PDF) 167 Page - Texas Instruments |
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CC2430-RTR1-F32Z датащи(HTML) 167 Page - Texas Instruments |
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167 / 234 page  CC2430 CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A Page 167 of 232 The RF interrupt is the combined interrupt from eight different sources in the radio. Two SFR registers are used for setting the eight individual RFIF radio interrupt flags and interrupt enables. These are the RFIF and RFIM registers. The interrupt flags in SFR register RFIF show the status for each interrupt source for the RF interrupt vector. The interrupt enable bits in RFIM are used to disable individual interrupt sources for the RF interrupt vector. Note that masking an interrupt source in RFIM does not affect the update of the status in the RFIF register. Due to the use of the individual interrupt masks in RFIM, and the main interrupt mask for the RF interrupt given by IEN2.RFIE there is two-layered masking of this interrupt. Special attention needs to be taken when processing this type of interrupt as described below. To clear the RF interrupt, S1CON.RFIF and the interrupt flag in RFIF need to be cleared. The order and method of doing this is shown in Figure 40. Note that S1CON is cleared after RFIF, otherwise S1CON.RFIF could be set once again due to the same interrupt. MOV RFIF,#00h ;clear all interrupt flags MOV S1CON,#00h ;clear main interrupt flags MOV RFIM,RFIM ;set interrupt mask Figure 40: Clearing RF Interrupt |
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