The SI4463 of B0 reference design, there is a version B1, according to the need to download.

Sample_codes_RevB0_UDP\Bidirectional_with_Ack
......................\......................\Si446x_PACKET_TRX
......................\......................\.................\C8051F960_defs.h
......................\......................\.................\Cleanup.bat
......................\......................\.................\compiler_defs.h
......................\......................\.................\control_IO.c
......................\......................\.................\control_IO.h
......................\......................\.................\ezrp_next_api.c
......................\......................\.................\ezrp_next_api.h
......................\......................\.................\hardware_defs.h
......................\......................\.................\main.c
......................\......................\.................\modem_params.h
......................\......................\.................\packet_trx_ack_Keil.wsp
......................\......................\.................\packet_trx_ack_SDCC.wsp
......................\......................\.................\packet_tx.hex
......................\......................\.................\Si446x_B0_defs.h
......................\......................\.................\spi.c
......................\......................\.................\spi.h
......................\......................\.................\STARTUP.A51
......................\single_way_simple_PH_mode
......................\.........................\Si446x_PACKET_RX
......................\.........................\................\C8051F960_defs.h
......................\.........................\................\Cleanup.bat
......................\.........................\................\compiler_defs.h
......................\.........................\................\control_IO.c
......................\.........................\................\control_IO.h
......................\.........................\................\ezrp_next_api.c
......................\.........................\................\ezrp_next_api.h
......................\.........................\................\hardware_defs.h
......................\.........................\................\main.c
......................\.........................\................\modem_params.h
......................\.........................\................\packet_rx.hex
......................\.........................\................\packet_rx_Keil.wsp
......................\.........................\................\packet_rx_SDCC.wsp
......................\.........................\................\Si446x_B0_defs.h
......................\.........................\................\spi.c
......................\.........................\................\spi.h
......................\.........................\................\STARTUP.A51
......................\.........................\Si446x_PACKET_TX
......................\.........................\................\C8051F960_defs.h
......................\.........................\................\Cleanup.bat
......................\.........................\................\compiler_defs.h
......................\.........................\................\control_IO.c
......................\.........................\................\control_IO.h
......................\.........................\................\ezrp_next_api.c
......................\.........................\................\ezrp_next_api.h
......................\.........................\................\hardware_defs.h
......................\.........................\................\main
......................\.........................\................\main.c
......................\.........................\................\modem_params.h
......................\.........................\................\packet_tx.hex
......................\.........................\................\packet_tx_Keil.wsp
......................\.........................\................\packet_tx_

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