User manual

39
Table 15: SPI opcode commands
Mnemonic
Opcode
Operation
Description
READ
0x0B
Read data
The read command returns data from
memory starting at the selected
address. It needs a delay between the
group containing the opcode, address,
and size data, and the return data
stream to let the receiver module to
decode the request and get the ready
data to the clock.
WRITE
0x02
Write data
The write command writes data to
memory starting at the selected
address and is limited to a page of 1 to
512 bytes.
CE
0xC7
Reset
configuration
The reset command resets the module
to the default configuration. The
process is started on deassert of nCS
and the write-enable flag in the status
register must be asserted.
RDSR
0x05
Read status
register
The read status command returns a
byte of the status register and bit-field
flags (refer to Table 16).
WREN
0x06
Write enabled
The write enabled command disables
the write protection in order to modify
any parameters.
WRDIS
0x04
Write disabled
The write disabled command enables
the write protection to lock the module
from any parameter changes.
SOFTRST
0x99
Software reset
The software reset command resets
the receiver module.