63.10.40 SPI Receive Data Register (FIFO Multiple Data, 8-bit)
To read multi-data, the FIFO must be enabled (FLEX_SPI_CR.FIFOEN=1) and FLEX_SPI_MR.PS=0. The access type (byte, halfword or word) determines the number of data written in a single access (1, 2 or 4), see SPI Multiple Data Access for details.
| Name: | FLEX_SPI_RDR (FIFO_MULTI_DATA_8) |
| Offset: | 0x408 |
| Reset: | 0x00000000 |
| Property: | Read-only |
| Bit | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | |
| RD3[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | |
| RD2[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| RD1[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| RD0[7:0] | |||||||||
| Access | R | R | R | R | R | R | R | R | |
| Reset | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Bits 0:7, 8:15, 16:23, 24:31 – RDx Receive Data
First unread data in the Receive FIFO. Data received by the SPI Interface is stored in this register in a right-justified format. Unused bits are read as zero.