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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 1823
UG585 (v1.11) September 27, 2016
Appendix B: Register Details
SUTW 13 rw 0x0 Setup TripWire (Device mode).
This semaphore is between the DCD and the
hardware for extracting setup data from QH with
out any corruption. Refer to the chapter text for
usage.
reserved 12 ro 0x0 reserved
ASPE 11 rw 0x0 Asynchronous Schedule Park Mode Enable
(EHCI).
This bit enables/disables the Asynchronous
Schedule Park Mode if Asynchronous Park
Capability bit in HCCPARAMS is one. Otherwise
this bit is zero and Park Mode is disabled.
reserved 10 ro 0x0 reserved
ASP 9:8 rw 0x0 Asynchronous Schudule Park Capability is
supported (EHCI).
The default is 3. Use any value between 1 and 3.
The value 3 gives the maximum throughput in
terms of number endpoint transactions compared
to 1 or 2.
LR 7 ro 0x0 Light Host/Device Controller Reset (EHCI).
0: not supported.
IAA 6 rw 0x0 Interrupt on Async Schedule Advance Doorbell
(EHCI).
0: no affect
1: ring the doorbell when the controller advances
the asynchronous schedule.
ASE 5 rw 0x0 Asyncronous Schedule Enable (EHCI) (Host
mode).
0: disable Async Schedule processing (the current
DMA transactions finishes).
1: enable Async Schedule processing (the memory
address for the async schedule is programmed
into usb.ASYNCLISTADDR).
PSE 4 rw 0x0 Periodic Schedule Enable (EHCI) (Host mode).
0: disable Periodic Schedule processing
1: enable Periodic Schedule
Note: The memory address for the periodic
schedule is programmed into
usb.PERIODICLISTBASE.
Field Name Bits Type Reset Value Description