Zynq UltraScale+ Devices Register Reference > Module Summary > USB3_XHCI Module > GDBGLSPMUX_HST (USB3_XHCI) Register

GDBGLSPMUX_HST (USB3_XHCI) Register

GDBGLSPMUX_HST (USB3_XHCI) Register Description

Register NameGDBGLSPMUX_HST
Relative Address0x000000C170
Absolute Address 0x00FE20C170 (USB3_0_XHCI)
0x00FE30C170 (USB3_1_XHCI)
Width32
TypemixedMixed types. See bit-field details.
Reset Value0x003F0000
DescriptionGlobal Debug LSP MUX Register - Host
This register is for internal use only.
If DWC_USB3_PRESERVE_LOGIC_ANALYZER_SELECT is enabled during core configuration, then the default values readout is X (Undefined).
Bit Bash test should not be done on this debug register.

GDBGLSPMUX_HST (USB3_XHCI) Register Bit-Field Summary

Field NameBitsTypeReset ValueDescription
Reserved31:24roRead-only0x0Reserved
logic_analyzer_trace23:16rwNormal read/write0x3Flogic_analyzer_trace Port MUX Select
Currently only bits[21:16] are used. For details on how the mux controls the debug traces, refer to the assign logic_analyzer_trace = code section in the DWC_usb3.v file.
A value of 6h3F drives 0s on the logic_analyzer_trace signal. If you plan to OR (instead using a mux) this signal with other trace signals in your system to generate a common trace signal, you can use this feature.
Reserved15:14roRead-only0x0Reserved
HOSTSELECT13:0rwNormal read/write0x0Device LSP Select
Selects the LSP debug information presented in the GDBGLSP register in host mode.

Alternate Register GDBGLSPMUX_DEV, reset=0x3f0000, mask=0xffc0ffff
Alternate Register Field: EPSELECT Offset=0 Width=4 read-write
[[*]] Description: Device Endpoint Select
Selects the Endpoint debug information presented in the GDBGEPINFO registers in device mode.
Alternate Register Field: DEVSELECT Offset=4 Width=4 read-write
[[*]] Description: Device LSP Select
Selects the LSP debug information presented in the GDBGLSP register in device mode.
Alternate Register Field: HOSTSELECT Offset=8 Width=6 read-write
[[*]] Description: Device LSP Select
Alternate Register Field: reserved_14 Offset=14 Width=1 read-only
[[*]] Description: Reserved
Alternate Register Field: EnDbc Offset=15 Width=1 read-write
[[*]] Description: Enable debugging of Debug capablity LSP in Host mode.
Use HostSelect to select DbC LSP debug information presented in the GDBGLSP register.
Alternate Register Field: logic_analyzer_trace Offset=16 Width=8 read-write
[[*]] Description: Logic Analyzer Trace Port MUX Select
Currently only bits[21:16] are used. For details on how the mux controls the debug traces, refer to 'assign logic_analyzer_trace =' code section in the DWC_usb3.v file.
A value of 6'h3F drives '0's on the logic_analyzer_trace signal. If you plan to OR (instead using a mux) this signal with other trace signals in your system to generate a common trace signal, you can use this feature.
Alternate Register Field: reserved_31_24 Offset=24 Width=8 read-only
[[*]] Description: Reserved