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数据搜索系统，热门电子元器件搜索 |
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MDEV-PROTO 数据表(PDF) 5 Page - Linx Technologies |
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MDEV-PROTO 数据表(HTML) 5 Page - Linx Technologies |
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5 / 7 page  – – – – 4 5 7 MODE_IND 9 CMD_DATA_IN 11 CMD 13 CTS 15 CMD_DATA_OUT 17 VCC 19 NC 21 NC 23 NC 25 NC 27 NC 29 NC 31 NC 33 NC 35 NC 37 NC GND 6 RESET 8 POWER_DOWN 10 NC 12 PB 14 LNA_EN 16 NC 18 PA_EN 20 NC 22 NC 24 NC 26 NC 28 NC 30 NC 32 NC 34 NC 36 41 NC 42 NC 43 NC 44 NC 45 NC 46 BE 47 NC 48 NC 49 NC 50 NC 51 NC 52 NC 53 NC 54 NC 55 NC 56 NC 40 NC 39 CRESP 38 EX ANTENNA 1 2-5 GND (RF Connector) Figure 5: EVM-xxx-PRO Pin Assignments Pin Descriptions Pin Assignments Pin Descriptions Pin Number Name I/O Description 1 ANTENNA — 50-ohm RF Antenna Port 2, 3, 4, 5, 6 GND — Ground 7 MODE_IND O Mode Indicator. This line indicates module activity. It can source enough current to drive a small LED, causing it to flash. The duration of the flashes indicates the module’s current state. 8 RESET I This line resets the module when pulled low. It should be pulled high for normal operation. 9 CMD_DATA_IN I Command Data In. Input line for data (CMD is high) and serial commands (CMD is low). 10 POWER_DOWN I Power Down. Pulling this line low places the module into a low-power state. The module is not functional in this state. Pull high for normal operation. Do not leave floating. 11 CMD I Command Input. When this line is low, incoming bytes are command data. When high, incoming bytes are data to be transmitted. 12, 18, 19, 21–37, 40-56 NC — No Electrical Connection. Do not connect any traces to these lines. Pin Descriptions Pin Number Name I/O Description 13 CTS O UART Clear To Send, active low. This line indicates to the host microcontroller when the module is ready to accept data. When CTS is high, the module is busy. When CTS is low, the module is ready for data. 14 PB I Reset non-volatile memory. A sequence of 4 high pulses on this line, followed by a prolonged high state causes the module to reset the non-volatile configuration parameters to factory default values. 15 CMD_DATA_OUT O Command Data Out. Output line for data and serial commands 16 LNA_EN O Low Noise Amplifier Enable. This line is driven high when receiving. It is intended to activate an optional external LNA. 17 VCC — Supply Voltage 20 PA_EN O Power Amplifier Enable. This line is driven high when transmitting. It is intended to activate an optional external power amplifier. 38 EX O Exception Output. A mask can be set to take this line high when an exception occurs. The line is lowered when the exception register is read (EXCEPT). 39 CRESP O Command Response. This line is low when the data on the CMD_DATA_OUT line is a response to a command and not data received over the air. 46 BE O Buffer Empty. This line is high when the UART input buffer is empty, indicating that all data has been transmitted. If acknowledgment is active, it also indicates that the receiving module has acknowledged the data or a retry exception has occurred. Figure 6: EVM-xxx-PRO Pin Descriptions |
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