SPI Data Register 1
| Bit7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| SPID1[7:0] | |||||||
| AccessR/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W |
| Resetx | x | x | x | x | x | x | x |
SPI Data 1
The SPI Data Register is a read/write register used for data transfer between the Register File and the SPI Shift Register. Writing to the register initiates data transmission. Reading the register causes the Shift Register Receive buffer to be read.