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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 1841
UG585 (v1.11) September 27, 2016
Appendix B: Register Details
Field Name Bits Type Reset Value Description
ULPIWU
(WU)
31 rw 0x0 ULPI Wake Up Operation.
Write:
0: no affect.
1: execute the Wake Up operation (no undoing).
Read:
0: operation complete.
1: operation in-progress.
Note: Do not issue a ULPI Wake Up and ULPI
Read/Write (via Viewport operation) with the
same register write.
ULPIRUN
(RUN)
30 rw 0x0 ULPI Viewport Transaction.
Write:
0: no affect.
1: execute the ULPI viewport transaction (no
undoing).
Read:
0: transaction complete.
1: transaction in-progress.
Note: Do not issue a ULPI Wake Up and Viewport
operations with the same register write.
ULPIRW
(RW)
29 rw 0x0 ULPI Viewport Read/Write Select.
0: read operation.
1: write operation.
reserved 28 ro 0x0 reserved
ULPISS
(SS)
27 ro 0x1 ULPI Synchronous State
0: In another state (i.e. carkit, serial, low power).
1: Normal synchronous state.
This bit represents the state of the ULPI interface.
Before reading this bit, the ULPIPORT field
should be set accordingly if used in a MPH
implementation.
ULPIPORT 26:24 rw 0x0 Reserved, always write 0.
ULPIADDR
(ADDR)
23:16 rw 0x0 ULPI Data Address. When a read or write
operation is commanded, the address of the
operation is written to this field.
ULPIDATRD
(DATRD)
15:8 ro 0x0 ULPI Data Read.
After a read operation completes, the result is
placed in this field.
ULPIDATWR
(DATWR)
7:0 rw 0x0 ULPI Data Write. When a write operation is
commanded, the data to be sent is written to this
field