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Zynq-7000 AP SoC Technical Reference Manual www.xilinx.com 1819
UG585 (v1.11) September 27, 2016
Appendix B: Register Details
Register CAPLENGTH_HCIVERSION Details
Register (usb) HCSPARAMS
Register HCSPARAMS Details
Port steering logic capabilities are confined to the single host port implementation..
Access Type ro
Reset Value 0x01000040
Description EHCI Addr Space and HCI constants, read-only
Field Name Bits Type Reset Value Description
HCIVERSION 31:16 ro 0x100 VUSB_HS_HCIVERSION constant. Host Mode
(EHCI). Read-only.
CAPLENGTH 15:0 ro 0x40 Address space taken by the Capability registers.
Host Mode (EHCI). Read-only.
0x100: add this offset to the address of the first
Capability register to get the address of the first
Operational register.
Name HCSPARAMS
Relative Address 0x00000104
Absolute Address usb0: 0xE0002104
usb1: 0xE0003104
Width 28 bits
Access Type ro
Reset Value 0x00010011
Description TT counts and EHCI HCS constants, read-only
Field Name Bits Type Reset Value Description
N_TT 27:24 ro 0x0 Transaction Translators (TT), read-only.
0: none.
N_PTT 23:20 ro 0x0 Number of ports per TT, read-only.
0: single host port.
reserved 19:17 ro 0x0 reserved.
PI 16 ro 0x1 Port Indicator (EHCI contant), read-only.
1: indicator available via EMIO, controlled by
usb.PORTSC1 [PIC].
N_CC 15:12 ro 0x0 Companion controller hardware (EHCI constant).
0: no companion controller hardware, refer to the
embeded Transaction Translator (TT).