Overview
The XIO2001ZWS, produced by Texas Instruments, is a single-function PCI Express to PCI translation bridge. It 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. This bridge enables seamless communication between PCI Express and PCI/PCI-X buses, supporting full ×1 PCI Express throughput with 250 MB/s packet throughput in each direction. The device is designed to minimize transaction latency and supports advanced error reporting, including extended CRC (ECRC) and PCI Express data poisoning and PCI bus parity errors.
Key Specifications
| Specification | Description |
|---|---|
| PCI Express Compliance | Fully compliant with PCI Express Base Specification, Revision 2.0 |
| PCI Compliance | Fully compliant with PCI Local Bus Specification, Revision 2.3 |
| Throughput | Full ×1 PCI Express throughput, 250 MB/s in each direction |
| Power Management | Support for D1, D2, D3hot, and D3cold states; Active-State Link Power Management using L0s and L1 states |
| Clock Support | 100-MHz differential PCI Express common reference clock or 125-MHz single-ended reference clock; optional spread spectrum reference clock |
| PCI Bus Interface | 3.3-V and 5.0-V tolerance options; supports 25 MHz, 33 MHz, 50 MHz, or 66 MHz PCI clock outputs |
| Package Options | 169-ball ZWS nFBGA, 144-ball ZAJ nFBGA, and PowerPad™ HTQFP 128-pin PNP package |
| General-Purpose I/O | Five 3.3-V multifunction general-purpose I/O terminals |
Key Features
- Full ×1 PCI Express throughput with 250 MB/s packet throughput in each direction
- Advanced error reporting including ECRC support and PCI Express data poisoning and PCI bus parity errors
- Support for wake event and beacon
- Active-State Link Power Management using L0s and L1 states
- 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
- Integrated AUX power switch and memory-mapped EEPROM serial-bus controller
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 XIO2001ZWS?
The XIO2001ZWS is a single-function PCI Express to PCI translation bridge, enabling communication between PCI Express and PCI/PCI-X buses.
- What PCI Express specifications does the XIO2001ZWS comply with?
The XIO2001ZWS is fully compliant with the PCI Express Base Specification, Revision 2.0.
- What is the throughput of the XIO2001ZWS?
The device supports full ×1 PCI Express throughput with 250 MB/s packet throughput in each direction.
- What power management features does the XIO2001ZWS support?
The device supports D1, D2, D3hot, and D3cold states and uses Active-State Link Power Management with L0s and L1 states.
- What types of clocks does the XIO2001ZWS support?
The device supports a 100-MHz differential PCI Express common reference clock or a 125-MHz single-ended reference clock, with optional spread spectrum reference clock.
- What package options are available for the XIO2001ZWS?
The device is available in 169-ball ZWS nFBGA, 144-ball ZAJ nFBGA, and PowerPad™ HTQFP 128-pin PNP packages.
- Does the XIO2001ZWS support general-purpose I/O terminals?
Yes, it supports five 3.3-V multifunction general-purpose I/O terminals.
- What is the purpose of the integrated AUX power switch in the XIO2001ZWS?
The integrated AUX power switch drains VAUX power only when the main power is off.
- Does the XIO2001ZWS support JTAG for production testing?
Yes, the device supports JTAG/BS for production testing.
- What are some of the industrial applications of the XIO2001ZWS?
The device is used in factory automation and control, retail automation and payment, and industrial transport (non-car and non-light truck).
