Semtech LoRa Edge LR1110, User Manual

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LR1110
User Manual
Rev.1.0
UM.LR1110.W.APP March 2020
27 of 130
Semtech
www.semtech.com
3.6 Memory Access
3.6.1 WriteRegMem32
The command WriteRegMem32( ) allows writing a block of 32bit words in register/memory space starting at a specific
address. The address is auto incremented after each data byte so that data is stored in contiguous register/memory
locations.The value of N is maximum 64.
3.6.2 ReadRegMem32
The command ReadRegMem32( ) allows reading a block of 32bit words in register/memory space starting at a specific
address. The address is auto incremented after each data byte so that data is read from contiguous register locations. Len
is the number of words to read, and is maximum 64.
Table 3-6:
WriteRegMem32 Command
Byte 0 1 2 3 4 5 6 7
Data from
Host
0x01 0x05 Addr
(31:24)
Addr
(23:16)
Addr
(15:8)
Addr
(7:0)
Data1
(31:24)
Data1
(23:16)
Data to
Host
Stat1 Stat2 IrqStatus
(31:24)
IrqStatus
(23:16)
IrqStatus
(15:8)
IrqStatus
(7:0)
0x00 0x00
Table 3-7:
WriteRegMem32 Command (Cont.)
Byte 8 9 10 ... 4*N +5
Data from Host
Data1
(15:8)
Data1
(7:0)
Data2
(31:24)
...
DataN
(7:0)
Data to Host 0x00 0x00 0x00 ... 0x00
Table 3-8:
ReadRegMem32 Command
Byte 0 1 2 3 4 5 6
Data from
Host
0x01 0x06 Addr
(31:24)
Addr
(23:16)
Addr
(15:8)
Addr
(7:0)
Len
Data to Host
Stat1 Stat2 IrqStatus
(31:24)
IrqStatus
(23:16)
IrqStatus
(15:8)
IrqStatus
(7:0)
0x00