Zynq UltraScale+ Devices Register Reference > Module Summary > QSPI Module > TXD2 (QSPI) Register

TXD2 (QSPI) Register

TXD2 (QSPI) Register Description

Register NameTXD2
Relative Address0x0000000084
Absolute Address 0x00FF0F0084 (QSPI)
Width32
TypewoWrite-only
Reset Value0x00000000
DescriptionTransmit Data, 2 Byte

Keyhole addresses for the Transmit data FIFO.

TXD2 (QSPI) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
TXD31:0woWrite-only0x0Data to TX FIFO, for 2-byte instruction, not for normal data transfer.
In little endian mode (default), only bits 15:0 are valid, bits 31:16 are ignored.
In big endian mode, only the 16 MSB bits are valid.