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CC2500-RTR1 数据表(PDF) 39 Page - Texas Instruments |
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CC2500-RTR1 数据表(HTML) 39 Page - Texas Instruments |
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39 / 99 page ![]() CC2500 SWRS040C Page 39 of 89 19 Radio Control TX 19,20 RX 13,14,15 IDLE 1 CALIBRATE 8 MANCAL 3,4,5 SETTLING 9,10,11 RXFIFO_OVERFLOW 17 TXFIFO_UNDERFLOW 22 RXTX_ SETTLING 21 FSTXON 18 SFSTXON FS_ AUTOCAL= 00 | 10 | 11 & SRX | STX | SFSTXON | WOR SRX | WOR STX STX TXFIFO_ UNDERFLOW STX | RXOFF_ MODE = 10 RXOFF_ MODE= 00 & FS_ AUTOCAL= 10 | 11 SFTX SRX | TXOFF_ MODE = 11 SIDLE SCAL CAL_ COMPLETE FS_ AUTOCAL= 01 & SRX | STX | SFSTXON | WOR RXFIFO_ OVERFLOW CAL_ COMPLETE SFRX CALIBRATE 12 IDLE 1 TXOFF_ MODE = 00 & FS_ AUTOCAL= 10 | 11 RXOFF_ MODE = 00 & FS_ AUTOCAL= 00 | 01 TXOFF_ MODE = 00 & FS_ AUTOCAL= 00 | 01 TXOFF_ MODE = 10 RXOFF_ MODE = 11 SFSTXON | RXOFF_ MODE = 01 TXRX_ SETTLING 16 SRX | STX | SFSTXON | WOR SLEEP 0 SPWD | SWOR XOFF 2 SXOFF CSn = 0 CSn = 0 | WOR ( STX | SFSTXON) & CCA | RXOFF_ MODE= 01 | 10 TXOFF_ MODE=01 FS_ WAKEUP 6,7 SRX Figure 15: Complete Radio Control State Diagram CC2500 has a built-in state machine that is used to switch between different operation states (modes). The change of state is done either by using command strobes or by internal events such as TX FIFO underflow. A simplified state diagram, together with typical usage and current consumption, is shown in Figure 5 on page 15. The complete radio control state diagram is shown in Figure 15. The numbers refer to the state number readable in the MARCSTATE status register. This register is primarily for test purposes. 19.1 Power-On Start-Up Sequence When the power supply is turned on, the system must be reset. One of the following two sequences must be followed: Automatic power-on reset (POR) or manual reset. |
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