XIO2001 PCI Express (PCIe) to PCI bus translation bridge | TI.com

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PCI Express (PCIe) to PCI bus translation bridge



The XIO2001 is a single-function PCI Express to PCI translation bridge that is fully compliant to the PCI Express to PCI/PCI-X Bridge Specification, Revision 1.0. For downstream traffic, the bridge simultaneously supports up to eight posted and four non-posted transactions. For upstream traffic, up to six posted and four non-posted transactions are simultaneously supported.

The PCI Express interface is fully compliant to the PCI Express Base Specification, Revision 2.0.

The PCI Express interface supports a ×1 link operating at full 250 MB/s packet throughput in each direction simultaneously. Also, the bridge supports the advanced error reporting including extended CRC (ECRC) as defined in the PCI Express Base Specification. Supplemental firmware or software is required to fully use both of these features.


  • Full ×1 PCI Express™ Throughput
  • Fully Compliant With PCI Express to PCI/PCI-X
    Bridge Specification
    , Revision 1.0
  • Fully Compliant With PCI Express Base
    , Revision 2.0
  • Fully Compliant With PCI Local Bus Specification,
    Revision 2.3
  • PCI Express Advanced Error Reporting Capability
    Including ECRC Support
  • Support for D1, D2, D3hot, and D3cold
  • Active-State Link Power Management Saves
    Power When Packet Activity on the PCI Express
    Link is Idle, Using Both L0s and L1 States
  • Wake Event and Beacon Support
  • Error Forwarding Including PCI Express Data
    Poisoning and PCI Bus Parity Errors
  • Uses 100-MHz Differential PCI Express Common
    Reference Clock or 125-MHz Single-Ended,
    Reference Clock
  • Optional Spread Spectrum Reference Clock is
  • Robust Pipeline Architecture to Minimize
    Transaction Latency
  • Full PCI Local Bus 66-MHz/32-Bit Throughput
  • Support for Six Subordinate PCI Bus Masters with
    Internal Configurable, 2-Level Prioritization
  • Internal PCI Arbiter Supporting Up to 6 External
    PCI Masters
  • Advanced PCI Express Message Signaled
    Interrupt Generation for Serial IRQ Interrupts
  • External PCI Bus Arbiter Option
  • PCI Bus LOCK Support
  • JTAG/BS for Production Test
  • PCI-Express CLKREQ Support
  • Clock Run and Power Override Support
  • Six Buffered PCI Clock Outputs (25 MHz, 33 MHz,
    50 MHz, or 66 MHz)
  • PCI Bus Interface 3.3-V and 5.0-V (25 MHz or
    33 MHz only at 5.0 V) Tolerance Options
  • Integrated AUX Power Switch Drains VAUX Power
    Only When Main Power Is Off
  • Five 3.3-V, Multifunction, General-Purpose I/O
  • Memory-Mapped EEPROM Serial-Bus Controller
    Supporting PCI Express Power Budget/Limit
    Extensions for Add-In Cards
  • Compact Footprint, Lead-Free 144-Ball, ZAJ
    MicroStar™ BGA, Lead-Free 169-Ball ZGU
    MicroStar BGA, and PowerPad™ HTQFP
    128-Pin PNP Package


Compare all products in PCIe, SAS & SATA Email Download to Excel
Part number Order Device type Protocols Application Supply voltage (V) Rating Operating temperature range (C) Package Group
XIO2001 Order now Bridge     PCIe     PCIe     1.5
Catalog     -40 to 85
0 to 70    
HTQFP | 128
NFBGA | 144