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S2-LP 数据表(PDF) 80 Page - STMicroelectronics |
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S2-LP 数据表(HTML) 80 Page - STMicroelectronics |
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80 / 90 page ![]() Register contents S2-LP 80/90 DocID029944 Rev 1 Name Addr Default Bit Field name Description SYNC3 33 88 7:0 SYNC3 SYNC word byte 3. SYNC2 34 88 7:0 SYNC2 SYNC word byte 2. SYNC1 35 88 7:0 SYNC1 SYNC word byte 1. SYNC0 36 88 7:0 SYNC0 SYNC word byte 0. QI 37 01 7:5 SQI_TH SQI threshold. 4:1 PQI_TH PQI threshold. 0 SQI_EN 1: enable the SQI check. PCKT_PSTMBL 38 00 7:0 PCKT_PSTMBL Set the packet postamble length. PROTOCOL2 39 40 7 CS_TIMEOUT_MASK 1: enable the CS value contributes to timeout disabling. 6 SQI_TIMEOUT_MASK 1: enable the SQI value contributes to timeout disabling. 5 PQI_TIMEOUT_MASK 1: enable the PQI value contributes to timeout disabling. 4:3 TX_SEQ_NUM_RELOAD TX sequence number to be used when counting reset is required using the related command. 2 FIFO_GPIO_OUT_MUX_SEL 1: select the almost empty/full control for TX FIFO. 0: select the almost empty/full control for RX FIFO. 1:0 LDC_TIMER_MULT Set the LDC timer multiplier factor: 00b: x1 01b: x2 10b: x4 11b: x8. PROTOCOL1 3A 00 7 LDC_MODE 1: enable the Low Duty Cycle mode. 6 LDC_RELOAD_ON_SYNC 1: enable the LDC timer reload mode. 5 PIGGYBACKING 1: enable the piggybacking. 4 FAST_CS_TERM_EN 1: enable the RX sniff timer. 3 SEED_RELOAD 1: enable the reload of the back-off random generator seed using the value written in the BU_COUNTER_SEED. 2 CSMA_ON 1: enable the CSMA channel access mode. 1 CSMA_PERS_ON 1: enable the CSMA persistent mode (no backoff cycles). 0 AUTO_PCKT_FLT 1: enable the automatic packet filtering control. PROTOCOL0 3B 08 7:4 NMAX_RETX Max. number of re-TX (from 0 to 15)(0: re- transmission is not performed). 3 NACK_TX 1: field NO_ACK=1 on transmitted packet. 2 AUTO_ACK 1: enable the automatic acknowledgment if packet received request. 1 PERS_RX 1: enable the persistent RX mode. 0 RESERVED - FIFO_CONFIG3 3C 30 7 RESERVED - 6:0 RX_AFTHR Set the RX FIFO almost full threshold. FIFO_CONFIG2 3D 30 7 RESERVED - 6:0 RX_AETHR Set the RX FIFO almost empty threshold. FIFO_CONFIG1 3E 30 7 RESERVED - 6:0 TX_AFTHR Set the TX FIFO almost full threshold. FIFO_CONFIG0 3F 30 7 RESERVED - |
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