Overview
The Texas Instruments XIO2001 is a single-function PCI Express (PCIe) to PCI bus translation bridge. It is designed to provide a seamless interface between PCIe and PCI buses, ensuring full compliance with relevant specifications. The XIO2001 supports a ×1 PCIe link with full 250 MB/s packet throughput in each direction, making it suitable for various applications requiring high-speed data transfer between different bus standards.
Key Specifications
| Specification | Description |
|---|---|
| PCI Express Compliance | Fully compliant with PCI Express to PCI/PCI-X Bridge Specification, Revision 1.0 and PCI Express Base Specification, Revision 2.0 |
| PCI Local Bus Compliance | Fully compliant with PCI Local Bus Specification, Revision 2.3 |
| PCI Express Throughput | Full ×1 PCIe link with 250 MB/s packet throughput in each direction |
| Error Reporting | Advanced error reporting including extended CRC (ECRC) and error forwarding |
| Power Management | Support for D1, D2, D3hot, and D3cold states; active-state link power management using L0s and L1 states |
| Reference Clock | Uses 100-MHz differential or 125-MHz single-ended reference clock; optional spread spectrum reference clock |
| PCI Bus Interface | Supports 3.3-V and 5.0-V tolerance options (25 MHz or 33 MHz only at 5.0 V) |
| PCI Clock Outputs | Six buffered PCI clock outputs (25 MHz, 33 MHz, 50 MHz, or 66 MHz) |
| Package Options | Lead-free 144-ball ZAJ nFBGA, 169-ball ZWS nFBGA, and PowerPad™ HTQFP 128-Pin PNP package |
Key Features
- Robust pipeline architecture to minimize transaction latency
- Support for six subordinate PCI bus masters with internal configurable 2-level prioritization scheme
- Internal PCI arbiter supporting up to six external PCI masters
- Advanced PCI Express message signaled interrupt generation for serial IRQ interrupts
- External PCI bus arbiter option and PCI bus LOCK support
- JTAG/BS for production test and PCI-Express CLKREQ support
- Clock run and power override support
- Integrated AUX power switch and five 3.3-V multifunction general-purpose I/O terminals
- Memory-mapped EEPROM serial-bus controller supporting PCI Express power budget/limit extensions for add-in cards
Applications
- Enterprise systems: Data center and enterprise computing
- Personal electronics: PC and notebooks
- Industrial applications: Factory automation and control, retail automation and payment, industrial transport (non-car and non-light truck)
Q & A
- What is the primary function of the XIO2001?
The XIO2001 is a single-function PCI Express to PCI bus translation bridge.
- What PCIe specifications does the XIO2001 comply with?
The XIO2001 is fully compliant with the PCI Express to PCI/PCI-X Bridge Specification, Revision 1.0, and the PCI Express Base Specification, Revision 2.0.
- What is the throughput of the XIO2001's PCIe interface?
The PCIe interface supports a ×1 link with full 250 MB/s packet throughput in each direction simultaneously.
- Does the XIO2001 support power management features?
Yes, it supports D1, D2, D3hot, and D3cold states and active-state link power management using L0s and L1 states.
- What types of error reporting does the XIO2001 support?
The XIO2001 supports advanced error reporting including extended CRC (ECRC) and error forwarding.
- What are the package options for the XIO2001?
The XIO2001 is available in lead-free 144-ball ZAJ nFBGA, 169-ball ZWS nFBGA, and PowerPad™ HTQFP 128-Pin PNP packages.
- Does the XIO2001 support multiple PCI clock frequencies?
Yes, it supports six buffered PCI clock outputs at frequencies of 25 MHz, 33 MHz, 50 MHz, or 66 MHz.
- What is the purpose of the integrated AUX power switch in the XIO2001?
The integrated AUX power switch drains VAUX power only when the main power is off.
- Does the XIO2001 have general-purpose I/O terminals?
Yes, it has five 3.3-V multifunction general-purpose I/O terminals.
- What kind of support does the XIO2001 offer for production testing?
The XIO2001 supports JTAG/BS for production testing.
