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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CC2430-RTR1-F64 датащи(PDF) 144 Page - Texas Instruments |
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CC2430-RTR1-F64 датащи(HTML) 144 Page - Texas Instruments |
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144 / 234 page  CC2430 CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A Page 144 of 232 13.11 Power On Reset and Brown Out Detector The CC2430 includes a Power On Reset (POR) and Brown Out Detector (BOD) in order to protect the memory contents during supply voltage variations and provide correct initialization during power- on. When power is initially applied to the CC2430 the Power On Reset (POR) and Brown Out Detector (BOD) will hold the device in reset state until the supply voltage reaches above the Power On Reset and Brown Out voltages as defined in Table 4 on page 12. Figure 32 shows the POR/BOD operation with the 1.8V (typical) regulated supply voltage together with the active low reset signals BOD_RESET and POR_RESET shown in the bottom of the figure. The cause of the last reset can read from the register bits SLEEP.RST. 0 UNREGULATED 1.8V REGULATED POR RESET ASSERT FALLING VDD BOD RESET ASSERT POR RESET DEASSERT RISING VDD VOLT POR OUTPUT BOD RESET POR RESET X X X X X X Figure 32 : Power On Reset and Brown Out Detector Operation |
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