ISP1563BMUM ST-Ericsson Inc, ISP1563BMUM Datasheet - Page 65

• Manufacturer Part Number: ISP1563BMUM
• Description: IC USB HOST CTRL HI-SPD 128LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1563BMUM

• Applications: USB Host/Function Processor
• Interface: EHCI Interface
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 128-LQFP
• Mounting Type: Surface Mount
• For Use With: UM10066 - EVAL BRD FOR ISP1563
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISP1563BM-T; ISP1563BM-T

Philips Semiconductors
9397 750 14224
Product data sheet
Table 85:
Address: Value read from func0 or func1 of address 10h + 54h
Bit
2
1
0
Symbol
PSS
PES
CCS
HcRhPortStatus[4:1] - Host Controller Root Hub Port Status[4:1] register bit
description
Description
On read, Port Suspend Status: This bit indicates whether the port is
suspended or is in the resume sequence. It is set by a Set Suspend State
write and cleared when PSSC (Port Suspend Status Change) is set at the
end of the resume interval. This bit is not set if CCS (Current Connect
Status) is cleared. This bit is also cleared when PRSC is set at the end of
the port reset or when the Host Controller is placed in the USBRESUME
state. If an upstream resume is in progress, it will propagate to the Host
Controller.
0 — Port is not suspended
1 — Port is suspended.
On write, Set Port Suspend: The HCD can set the PSS (Port Suspend
Status) bit by writing logic 1 to this bit. Writing logic 0 has no effect. If CCS
is cleared, this write does not set PSS; instead it sets CSS. This informs the
driver that it attempted to suspend a disconnected port.
On read, Port Enable Status: This bit indicates whether the port is enabled
or disabled. The Root Hub may clear this bit when an overcurrent condition,
disconnect event, switched-off power or operational bus error is detected.
This change also causes Port Enabled Status Change to be set. The HCD
can set this bit by writing Set Port Enable and clear it by writing Clear Port
Enable. This bit cannot be set when CCS (Current Connect Status) is
cleared. This bit is also set on completing a port reset when Reset Status
Change is set or on completing a port suspend when Suspend Status
Change is set.
0 — Port is disabled
1 — Port is enabled.
On write, Set Port Enable: The HCD can set PES (Port Enable Status) by
writing logic 1. Writing logic 0 has no effect. If CCS is cleared, this write
does not set PES, but instead sets CSC (Connect Status Change). This
informs the driver that it attempted to enable a disconnected port.
On read, Current Connect Status: This bit reflects the current state of the
downstream port.
0 — No device connected
1 — Device connected.
On write, Clear Port Enable: The HCD can write logic 1 to this bit to clear
the PES (Port Enable Status) bit. Writing logic 0 has no effect. The CCS bit
is not affected by any write.
Remark: This bit always reads logic 1 when the attached device is
nonremovable (DeviceRemovable[NDP]).
…continued
Rev. 01 — 14 July 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
HS USB PCI Host Controller
ISP1563
65 of 107