Semtech LR1121 - List of Commands; Register; Memory Access Operations; Table 13-1: Register; Memory Access Operations

LR1121
User Manual Rev 1.1
UM.LR1121.W.APP Mar 2023
121 of 130
Semtech
Proprietary & Confidential
www.semtech.com
13. List Of Commands
For a general description of SPI Read and Write commands processing, see sections 3.2 Read Commands and 3.1 Write
Commands.
13.1 Register / Memory Access Operations
Table 13-1: Register / Memory Access Operations
Command Opcode Parameters Description
WriteRegMem32 0x0105 Addr(4), Data(256)
Writes data at given register/memory address. Address must be
32-bit aligned and data length must be a multiple of 4
ReadRegMem32 0x0106 Addr(4), Len(1)
Reads data at given register/memory address. Address must be
32-bit aligned and data length < 65
WriteBuffer8 0x0109 Data(255) Writes data to radio TX buffer (up to 255 bytes)
ReadBuffer8 0x010A Offset(1), Len(1) Reads data from radio RX buffer
ClearRxBuffer 0x010B --- Clears all data from radio RX buffer
WriteRegMemMask32 0x010C Addr(4), Mask(4), Data(4)
Reads-Modifies-Writes data at given register/memory address.
Address must be 32-bit aligned.