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PM0237 数据表(PDF) 12 Page - STMicroelectronics |
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PM0237 数据表(HTML) 12 Page - STMicroelectronics |
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12 / 88 page ![]() Bluetooth low energy technology PM0237 12/88 DocID027104 Rev 2 1.3.1 BLE packets A packet is a labeled data that is transmitted by one device and received by one or more other devices. The BLE data packet structure is described below. Figure 4. Packet structure • Preamble: RF synchronization sequence • Access address: 32 bits, advertising or data access addresses (it is used to identify the communication packets on physical layer channel) • Header: its content depends on the packet type (advertising or data packet) a) Advertiser packet header: Table 2. Advertising data header file content Advertising packet type Reserved Tx address type Rx address type (4 bits) (2 bits) (1 bit) (1 bit) |
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