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High-Speed USB Host Subsystem
Bits
Field Name
Description
Type
Reset
2
PSS_SPS
Port 1 port suspend status/set port suspend. This bit is
RW
0
cleared automatically at the end of the USB resume
sequence and also at the end of the USB reset
sequence.
Write 0x0: No effect.
Read 0x0: Port 1 is not in the USB suspend state.
Read 0x1: Port 1 is in the USB suspend state or is in the
resume sequence.
Write 0x1: If port 1 current connect status is 1, sets the
port 1 port suspend status bit and places port 1 in USB
suspend state. If current connect status is 0, sets instead
connect status change to inform the USB host controller
driver of an attempt to suspend a disconnected port.
1
PES_SPE
Port 1 port enable status/set port enable. This bit is
RW
0
automatically set at completion of port 1 USB reset if it
was not already set before the USB reset completed, and
is automatically set at the end of a USB suspend if the
port was not enabled when the USB resume completed.
Read 0x0: Port 1 is not enabled.
Read 0x1: Port 1 is enabled.
Write 0x0: No effect.
Write 0x1: When port 1 current connect status is 1 sets
the port 1 port enable status bit. When port 1 current
status is 0 has no effect.
0
CCS_CPE
Port 1 current connection status/clear port enable.
RW
0
Read 0x0: No USB device is attached to port 1.
Read 0x1: Port 1 currently has a USB device attached.
Write 0x0: No effect.
Write 0x1: Clears the port 1 port enable bit.
Note: This bit is set to 1 if the DR bit
[1] is set to indicate a
non-removable device on port 1.
Table 22-207. Register Call Summary for Register HCRHPORTSTATUS_1
High-Speed USB Host Subsystem
•
High-Speed USB Host Controller Functionality
•
High-Speed USB Host Subsystem Register Summary
Table 22-208. HCRHPORTSTATUS_2
Address Offset
0x0000 0058
Physical Address
0x4806 4458
Instance
OHCI
Description
HC Port 2 Status and Control Register
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
RESERVED
RESERVED
CSC
PSSC
PESC
PRSC
PPS_SPP
PSS_SPS
PES_SPE
PRS_SPR
CCS_CPE
LSDA_CPP
RESERVED
RESERVED
RESERVED
Bits
Field Name
Description
Type
Reset
31:21
RESERVED
Reserved
R
0x000
20
PRSC
Port 2 reset status change. This bit is set when the Port 2
RW
0
port reset status bit has changed.
Write 0x0: No effect.
Write 0x1: Clears this bit.
19
RESERVED
Reserved
RW
0
3341
SWPU177N – December 2009 – Revised November 2010
High-Speed USB Host Subsystem and High-Speed USB OTG Controller
Copyright © 2009–2010, Texas Instruments Incorporated