PI7C9X20404SLCFDE Pericom Semiconductor, PI7C9X20404SLCFDE Datasheet - Page 72

• 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: -

PI7C9X20404SL
4Port-4Lane PCI Express® Switch
TM
SlimLine
Family
Datasheet
10
POWER MANAGEMENT
The PI7C9X20404SL supports D0, D1, D2, D3-hot, and D3-cold Power States. The PCI Express Physical Link
Layer of the PI7C9X20404SL device supports the PCI Express Link Power Management with L0, L0s, L1, L2/L3
ready and L3 Power States.
During the transition from D3-hot to D3-cold state, the main power supplies of VDDC and VDDR are turned off to
save power while keeping the VDDAUX and VAUX with the auxiliary power supplies to maintain all necessary
information to be restored to the full power D0 state. PI7C9X20404SL has been designed to have sticky registers
that are powered by auxiliary power supplies. PI7C9X20404SL forwards power management messages to the
upstream Switches or root complex.
PI7C9X20404SL also supports ASPM (Active State Power Management) to facilitate the link power saving.
PI7C9X20404SL supports beacon generation and WAKEUP_L signal.
Page 72 of 77
July 2009 – Revision 1.2
Pericom Semiconductor