Cypress EZ-USB FX3 User Manual

EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 447
OHCI_RH_PORT_STATUS
0xE0032054
10.14.21 OHCI_RH_PORT_STATUS
Root Hub Port Status Register
31 PORT_RESUME_FW Port Resume (virtual register of PSS from firmware).
For an OHCI resume initiated by the host, firmware clears the PSS bit. However, this bit is not sup-
posed to go low until the resume is complete. The PORT_RESUME_FW bit will give us a way to sig-
nal to the Host Logic that it should do a resume and then go clear the PSS bit. There is no real
functionality being added, this is only trying to emulate the OHCI interface better.
20 PRSC PortResetStatusChange
18 PSSC PortSuspendStatusChange
17 PESC PortEnableStatusChange
16 CSC ConnectStatusChange
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OHCI_RH_PORT_STATUS Root Hub Port Status Register 0xE0032054
b31 b30 b29 b28 b27 b26 b25 b24
PORT_RESUME_
FW
OC
R/W R
R/W R
00
OHCI_RH_PORT_STATUS Root Hub Port Status Register
b23 b22 b21 b20 b19 b18 b17 b16
PRSC PSSC PESC CSC
R/W1C R/W1C R/W1C R/1C
R/W1S R/W1S R/W1S R/W
0 000
OHCI_RH_PORT_STATUS Root Hub Port Status Register
b15 b14 b13 b12 b11 b10 b9 b8
OHCI_RH_PORT_STATUS Root Hub Port Status Register
b7 b6 b5 b4 b3 b2 b1 b0
PRS PSS PES CCS
R/W1S R/W1S R/W1S R
R/W0C R/W0C R/W R/W
0 000
Bit Name Description

Cypress EZ-USB FX3 Specifications

General

Brand	Cypress
Model	EZ-USB FX3
Category	Controller
Language	English