PI7C9X20404SLCFDE Pericom Semiconductor, PI7C9X20404SLCFDE Datasheet - Page 55

• Manufacturer Part Number: PI7C9X20404SLCFDE
• Description: IC PCIE PACKET SWITCH 128LQFP
• Manufacturer: Pericom Semiconductor
• Series: SlimLine™r

Specifications of PI7C9X20404SLCFDE

• Applications: Data Transport
• Interface: Advanced Configuration Power Interface (ACPI)
• Package / Case: 128-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -

7.2.73
July 2009 – Revision 1.2
Pericom Semiconductor
SLOT CAPABILITIES REGISTER (Downstream Port Only) – OFFSET F4h
BIT
25:20
26
27
28
29
31:30
BIT
0
1
2
3
4
5
6
FUNCTION
Negotiated Link
Width
Training Error
Link Training
Slot Clock
Configuration
Data Link Layer
Link Active
Reserved
FUNCTION
Attention Button
Present
Power Controller
Present
Reserved
Attention Indicator
Present
Power Indicator
Present
Hot-Plug Surprise
Hot-Plug Capable
TYPE
TYPE
HwInt
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
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Indicates the status of the Data Link Control and Management State Machine.
It returns a 1b to indicate the DL_Active state, 0b otherwise.
Reset to 0b.
Reset to 00b.
DESCRIPTION
Indicates the negotiated width of the given PCIe link.
Reset to 000001b (x1).
When set, indicates a Link training error occurred.
This bit is cleared by hardware upon successful training of the link to the L0
link state.
Reset to 0b.
When set, indicates the link training is in progress. Hardware clears this bit
once link training is complete.
Reset to 0b.
0b: the Switch uses an independent clock irrespective of the presence of a
1b: the Switch uses the same reference clock that the platform provides on the
The default value may be changed by the status of strapped pin, SMBus, or
auto-loading from EEPROM.
Reset to 0b.
DESCRIPTION
When set, it indicates that an Attention Button is implemented on the chassis
for this slot. The default value may be changed by SMBus or auto-loading
from EEPROM.
Reset to 0b.
When set, it indicates that a Power Controller is implemented for this slot.
The default value may be changed by SMBus or auto-loading from
EEPROM.
Reset to 0b.
Reset to 0b.
When set, it indicates that an Attention Indicator is implemented on the
chassis for this slot. The default value may be changed by SMBus or auto-
loading from EEPROM.
Reset to 0b.
When set, it indicates that a Power Indicator is implemented on the chassis
for this slot. The default value may be changed by SMBus or auto-loading
from EEPROM.
Reset to 0b.
When set, it indicates that a device present in this slot might be removed from
the system without any prior notification. The default value may be changed
by SMBus or auto-loading from EEPROM.
Reset to 0b.
The packet switch does not support the Hot-Plug operation.
Reset to 0b.
reference on the connector
connector
4Port-4Lane PCI Express® Switch
SlimLine
PI7C9X20404SL
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