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CC2430-RTR1-F64 датащи(PDF) 132 Page - Texas Instruments |
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CC2430-RTR1-F64 датащи(HTML) 132 Page - Texas Instruments |
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132 / 234 page ![]() CC2430 CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A Page 132 of 232 ADCCON3 (0xB6) – ADC Control 3 Bit Name Reset R/W Description Selects reference voltage used for the extra conversion 00 Internal 1.25V reference 01 External reference on AIN7 pin 10 AVDD_SOC pin 7:6 EREF[1:0] 00 R/W 11 External reference on AIN6-AIN7 differential input Sets the decimation rate used for the extra conversion. The decimation rate also determines the resolution and time required to complete the conversion. 00 64 dec rate (8 bits resolution) 01 128 dec rate (10 bits resolution) 10 256 dec rate (12 bits resolution) 5:4 EDIV[1:0] 00 R/W 11 512 dec rate (13 bits resolution) Extra channel select. Selects the channel number of the extra conversion that is carried out after a conversion sequence has ended. This bit field must be written for an extra conversion to be performed. If the ADC is not running, writing to these bits will trigger an immediate single conversion from the selected extra channel. The bits are automatically cleared when the extra conversion has finished. 0000 AIN0 0001 AIN1 0010 AIN2 0011 AIN3 0100 AIN4 0101 AIN5 0110 AIN6 0111 AIN7 1000 AIN0-AIN1 1001 AIN2-AIN3 1010 AIN4-AIN5 1011 AIN6-AIN7 1100 GND 1101 Positive voltage reference 1110 Temperature sensor 3:0 ECH[3:0] 0000 R/W 1111 VDD/3 |
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