1.2.6 Read RX FIFO

Description

The SPI command “Read RX FIFO” reads n data bytes from the DFIFO in RX direction. The desired number of data bytes to be returned is given in the length parameter. The access direction switch of the FIFO is set automatically and restored to the origin at the end of the command (direction temporarily stored in the T-bit).

Command Frame

Parameters

• 0x06 – Command ID
• length – Number of bytes to be read from DFIFO
• 0x00 – Dummy byte (no information)
• 0x00 – Dummy byte (no information)
• …
• 0x00 – Dummy byte (no information)

Return Values

• events.system – Event byte (for details see SPI command “Get Event Bytes”)
• events.events – Event byte (for details see SPI command “Get Event Bytes”)
• 0x00 – Dummy byte (no information)
• data – Data byte 1
• data – Data byte 2
• …
• data – Data byte n (n = length)