ISP1561BMUM ST-Ericsson Inc, ISP1561BMUM Datasheet - Page 61

• Manufacturer Part Number: ISP1561BMUM
• Description: IC USB HOST CTRL HI-SPD 128LQFP
• Manufacturer: ST-Ericsson Inc

Specifications of ISP1561BMUM

• Controller Type: USB Peripheral Controller
• Interface: PCI
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Other names: ISP1561BM-T; ISP1561BM-T

NXP Semiconductors
ISP1561_2
Product data sheet
Table 86.
Bit
8
7 to 5
4
3
Symbol Description
PPS
-
PRS
POCI
HCRhPortStatus[1:4] register: bit description
On read Port Power Status: This bit reflects the port power status,
regardless of the type of power switching implemented. This bit is cleared if
an overcurrent condition is detected. The HCD can set this bit by writing Set
Port Power or Set Global Power. The HCD can clear this bit by writing Clear
Port Power or Clear Global Power. Power Switching Mode and
PortPowerControlMask[NDP] determine which power control switches are
enabled. In Global Switching mode (Power Switching Mode = 0), only
Set/Clear Global Power controls this bit. In the per-port power switching
(Power Switching Mode = 1), if the PortPowerControlMask[NDP] bit for the
port is set, only Set/Clear Port Power commands are enabled. If the mask is
not set, only Set/Clear Global Power commands are enabled.
When port power is disabled, CCS (Current Connect Status), PES (Port
Enable Status), PSS (Port Suspend Status) and PRS (Port Reset Status)
must be reset.
0 — Port power is off
1 — Port power is on
On write Set Port Power: The HCD can write logic 1 to set the PPS (Port
Power Status) bit. Writing logic 0 has no effect.
Remark: This bit always reads logic1 if power switching is not supported.
reserved
On read Port Reset Status: When this bit is set by a write to Set Port Reset,
port reset signaling is asserted. When reset is completed and PRSC (Port
Reset Status Change) is set, this bit is cleared.
0 — Port reset signal is not active
1 — Port reset signal is active
On write Set Port Reset: The HCD can set the port reset signaling by writing
logic 1 to this bit. Writing logic 0 has no effect. If CCS is cleared, this write
does not set PRS (Port Reset Status) but instead sets CCS. This informs the
driver that it attempted to reset a disconnected port.
On read Port Overcurrent Indicator: This bit is valid only when the root hub
is configured to show overcurrent conditions are reported on a per-port basis.
If the per-port overcurrent reporting is not supported, this bit is set to logic 0.
If cleared, all power operations are normal for this port. If set, an overcurrent
condition exists on this port.
0 — No overcurrent condition
1 — Overcurrent condition detected
On write Clear Suspend Status: The HCD can write logic 1 to initiate a
resume. Writing logic 0 has no effect. A resume is initiated only if PSS (Port
Suspend Status) is set.
Rev. 02 — 5 March 2007
…continued
HS USB PCI Host Controller
© NXP B.V. 2007. All rights reserved.
ISP1561
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