Overview
The XIO2001IZGU, produced by Texas Instruments, is a single-function PCI Express to PCI bus translation bridge. It is fully compliant with the PCI Express to PCI/PCI-X Bridge Specification, Revision 1.0, the PCI Express Base Specification, Revision 2.0, and the PCI Local Bus Specification, Revision 2.3. This bridge supports full ×1 PCI Express throughput, achieving 250 MB/s packet throughput in each direction simultaneously. It is designed to facilitate seamless communication between PCI Express and PCI/PCI-X buses, making it a crucial component in various industrial and commercial applications.
Key Specifications
| Specification | Description |
|---|---|
| PCI Express Compliance | Fully compliant with PCI Express Base Specification, Revision 2.0 |
| PCI/PCI-X Compliance | Fully compliant with PCI Express to PCI/PCI-X Bridge Specification, Revision 1.0 |
| PCI Local Bus Compliance | Fully compliant with PCI Local Bus Specification, Revision 2.3 |
| Throughput | Full ×1 PCI Express link operating at 250 MB/s packet throughput in each direction |
| Transaction Support | Up to eight posted and four non-posted transactions downstream; up to six posted and four non-posted transactions upstream |
| 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 | 100-MHz differential or 125-MHz single-ended PCI Express common reference clock; optional spread spectrum reference clock |
| Package Options | Lead-free 144-ball ZAJ nFBGA, lead-free 169-ball ZWS nFBGA, and PowerPad™ HTQFP 128-pin PNP package |
| PCI Bus Interface | 3.3-V and 5.0-V tolerance options; six buffered PCI clock outputs (25 MHz, 33 MHz, 50 MHz, or 66 MHz) |
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
- PCI bus LOCK support
- JTAG/BS for production test
- PCI-Express CLKREQ support
- Clock run and power override support
- Integrated AUX power switch drains V_AUX power only when main power is off
- 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
The XIO2001IZGU is suitable for a variety of applications, including:
- Factory automation and control
- Retail automation and payment systems
- Industrial transport (non-car and non-light truck)
Q & A
- What is the primary function of the XIO2001IZGU?
The XIO2001IZGU is a single-function PCI Express to PCI bus translation bridge. - What specifications is the XIO2001IZGU compliant with?
The XIO2001IZGU is fully compliant with the PCI Express to PCI/PCI-X Bridge Specification, Revision 1.0, the PCI Express Base Specification, Revision 2.0, and the PCI Local Bus Specification, Revision 2.3. - What is the throughput of the PCI Express link in the XIO2001IZGU?
The PCI Express link operates at full 250 MB/s packet throughput in each direction simultaneously. - How many transactions does the XIO2001IZGU support?
The bridge supports up to eight posted and four non-posted transactions downstream, and up to six posted and four non-posted transactions upstream. - What power management features does the XIO2001IZGU support?
The XIO2001IZGU supports D1, D2, D3hot, and D3cold states, and active-state link power management using L0s and L1 states. - What reference clock options are available for the XIO2001IZGU?
The XIO2001IZGU uses a 100-MHz differential or 125-MHz single-ended PCI Express common reference clock, with an optional spread spectrum reference clock. - What package options are available for the XIO2001IZGU?
The XIO2001IZGU is available in lead-free 144-ball ZAJ nFBGA, lead-free 169-ball ZWS nFBGA, and PowerPad™ HTQFP 128-pin PNP packages. - Does the XIO2001IZGU support PCI bus arbitration?
Yes, the XIO2001IZGU supports internal PCI arbitration and an external PCI bus arbiter option. - What is the purpose of the integrated AUX power switch in the XIO2001IZGU?
The integrated AUX power switch drains V_AUX power only when the main power is off. - Are there any specific industrial applications for the XIO2001IZGU?
Yes, the XIO2001IZGU is suitable for factory automation, retail automation, and industrial transport applications.
