I/O Configuration Detection

Zynq UltraScale+ Device Technical Reference Manual (UG1085)

Document ID
UG1085
Release Date
2022-09-15
Revision
2.3 English

The BootROM can detect the intended I/O width of the Quad-SPI interface using the width detection parameter value (0xAA995566) and the image identification parameter value (0x584C4E58) in a 8- bit parallel configuration.