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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CC1021-RTR1 датащи(PDF) 23 Page - Texas Instruments |
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CC1021-RTR1 датащи(HTML) 23 Page - Texas Instruments |
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23 / 91 page  xosc f B.R. 8 (REF _ DIV 1) DIV1 DIV2 = ´ + ´ ´ Time 1 0 1 1 0 0 0 1 1 0 1 Tx data Time 1 0 1 1 0 0 0 1 1 0 1 Tx data DCLK is not used in transmit mode, and is used as data output in receive mode. It can be set to default high or low in transmit mode. FSK modulating signal, internal in CC1021 Data provided by UART (TXD) Transmitter side: DCLK is used as data output provided by CC1021. Connect to UART (RXD) Demodulated signal (NRZ), internal in CC1021 DIO is not used in receive mode. Used only as data input in transmit mode DCLK DIO “RF” “RF” DCLK DIO Receiver side: DCLK is not used in transmit mode, and is used as data output in receive mode. It can be set to default high or low in transmit mode. FSK modulating signal, internal in CC1021 Data provided by UART (TXD) Transmitter side: DCLK is used as data output provided by CC1021. Connect to UART (RXD) Demodulated signal (NRZ), internal in CC1021 DIO is not used in receive mode. Used only as data input in transmit mode DCLK DIO “RF” “RF” DCLK DIO Receiver side: Not Recommended for New Designs NRND CC1021 www.ti.com SWRS045D – JANUARY 2006 – REVISED JANUARY 2015 Figure 5-8. Transparent Asynchronous UART Mode (SEP_DI_DO = 1) Figure 5-9. Manchester Encoding 5.7 Data Rate Programming The data rate (baud rate) is programmable and depends on the crystal frequency and the programming of the CLOCK (CLOCK_A and CLOCK_B) registers. The baud rate (B.R.) is given by Equation 1. (1) Where: DIV1 and DIV2 are given by the value of MCLK_DIV1 and MCLK_DIV2. Table 5-4 shows some possible data rates as a function of crystal frequency in synchronous mode. In asynchronous transparent UART mode any data rate up to 153.6 kBaud can be used. Table 5-2. DIV2 for Different Settings of MCLK_DIV2 MCLK_DIV2[1:0] DIV2 00 1 01 2 10 4 11 8 Copyright © 2006–2015, Texas Instruments Incorporated Detailed Description 23 Submit Documentation Feedback Product Folder Links: CC1021 |
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