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Texas Instruments XIO1100ZWSR
- Part No.:
- XIO1100ZWSR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 100-LFBGA
- Datasheet:
-
XIO1100ZWSR.pdf
- Description:
- X1 PCI EXPRESS PHY
- Quantity:
- Payment:
- Shipping:
Inventory:346
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Product details
Overview
XIO1100ZWSR from Texas Instruments is a PCI Express 1.1-compliant PHY IC that bridges the MAC layer to a 2.5 Gbps serial link via TI-PIPE interface, supporting selectable 16-bit SDR at 125 MHz or 8-bit DDR at 250 MHz, with 100-pin MicroStar BGA packaging and dual reference clock options (100 MHz differential or 125 MHz single-ended).
For engineers reviewing the XIO1100ZWSR datasheet, XIO1100ZWSR pinout, XIO1100ZWSR application, or XIO1100ZWSR equivalent, this device serves as a critical PCIe physical layer transceiver in embedded host controllers, add-in cards, and bridge designs requiring low-latency, power-managed serial interconnects compliant with PCI-SIG Base Specification Revision 1.1.
Technical Context
The XIO1100ZWSR implements a modified PIPE interface (TI-PIPE) with source-synchronous TX_CLK and RX_CLK clocks-unlike Intel's standard PIPE-which enables independent timing control for transmit and receive data paths. It performs full 8B/10B encoding/decoding, scrambling/unscrambling, and elastic buffer-based clock tolerance compensation (±600 ppm) to maintain data integrity across frequency-mismatched links.
Power management includes three defined states: P0 (full operation), P0s (transmit-idle low-recovery state), and P1 (deep idle with 64 µs max recovery), all coordinated via POWERDOWN[1:0] and signaled through PHY_STATUS. The device supports polarity inversion, electrical idle control, loopback testing, and receiver detection-all directly accessible via dedicated sideband signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PCIe Compliance | PCI Express Base Specification Revision 1.1, including LTSSM support for Polling, Configuration, Recovery, L0, L0s, and L1 states. |
| Data Rate | 2.5 Gbps per lane; supports single-lane PCIe x1 physical interface with differential TXP/TXN and RXP/RXN signaling. |
| TI-PIPE Interface | Selectable 16-bit SDR @ 125 MHz or 8-bit DDR @ 250 MHz; voltage level set by VDD_IO (1.5 V or 1.8 V). |
| Reference Clock | Configurable: 100 MHz differential (REFCLK+/REFCLK−) or 125 MHz single-ended (REFCLK+ tied to VSS). |
| Power States | P0 (active), P0s (Tx-idle), P1 (deep idle); P1_SLEEP input enables further RX_CLK gating during P1 only. |
| Error Handling | Detects and reports 8B/10B decode errors, elastic buffer overflow/underflow, and disparity errors via RX_STATUS[2:0]. |
| Package | 100-pin MicroStar BGA (GGB), 10 mm × 10 mm, 0.8 mm pitch, RoHS-compliant. |
Pinout & Package
The XIO1100ZWSR is housed in a 100-pin MicroStar BGA (GGB) package with 0.8 mm pitch and 10 mm × 10 mm body size. Pin assignments follow TI's standardized GGB layout, with dedicated power, ground, I/O, and sideband signal groups.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /RESET (N11) | Asynchronous reset input | Active-low global reset; must be held until REFCLK and power stabilize before release. |
| POWERDOWN[1:0] (L9, M9) | Power state control inputs | Encodes P0 (00), P0s (01), or P1 (10); drives LTSSM-aligned power transitions with PHY_STATUS confirmation. |
| TX_CLK (M8) / RX_CLK (B8) | Source-synchronous interface clocks | TX_CLK clocks TXDATA latching; RX_CLK clocks RXDATA output; both are independent, eliminating skew between directions. |
| TX_DATA[15:0] (G2–N6) | Parallel transmit data bus | 16-bit wide in SDR mode; in DDR mode, only TX_DATA[7:0] active on both clock edges; TX_DATA[15:8] unused and grounded. |
| RX_STATUS[2:0] (E3, G1, G3) | Status/error reporting outputs | Encodes receiver detection codes (000/011), SKP actions (001/010), and error types (100–111) with strict priority hierarchy. |
Key Features
| Feature | Design Value |
|---|---|
| TI-PIPE Interface Flexibility | Hardware-configurable 16-bit SDR or 8-bit DDR mode via DDR_EN, enabling bandwidth-optimized integration with diverse MAC implementations. |
| Elastic Buffer Compensation | 7-symbol buffer depth tolerates ±600 ppm clock mismatch and dynamically inserts/removes SKP ordered-sets to prevent overflow/underflow. |
| Low-Power State Coordination | Three-tier power management (P0/P0s/P1) with explicit PHY_STATUS handshake ensures deterministic, standards-compliant LTSSM transitions. |
| Sideband Signal Control | Dedicated pins (RX_POLARITY, TX_COMPLIANCE, TX_ELECIDLE, TX_DET_LOOPBACK) enable real-time PHY behavior tuning without MAC protocol overhead. |
| Robust Error Signaling | Priority-encoded RX_STATUS[2:0] reports 8B/10B decode failure, elastic buffer anomalies, and disparity errors within one RX_CLK cycle of occurrence. |
Applications
| Embedded Host Controller Interface | PCIe Add-In Card PHY |
|---|---|
|
Use Scenario: Integrating PCIe connectivity into SoC-based industrial controllers where space and power are constrained. IC Role / Device Role / Timing Role: PHY layer translator between on-die PCIe MAC and external serial link; provides clock recovery, encoding, and compliance signaling. Use Value: Enables direct PCIe x1 attachment without external retimers or clock synthesizers, reducing BOM count and board area. |
Use Scenario: Adding PCIe host capability to legacy ISA/PCI carrier boards via mezzanine expansion. IC Role / Device Role / Timing Role: Physical layer transceiver handling differential signaling, 8B/10B conversion, and LTSSM state coordination for plug-and-play enumeration. Use Value: Delivers full PCIe 1.1 compliance-including electrical idle, loopback, and receiver detection-for certified interoperability with root complexes. |
| Bridge Device PHY Layer | Test & Validation Platform |
|
Use Scenario: Implementing PCIe-to-PCI/X or PCIe-to-USB bridge chips requiring native serial link termination. IC Role / Device Role / Timing Role: PHY endpoint managing link training, clock tolerance, and error recovery independently of bridge logic. Use Value: Offloads physical layer complexity from bridge ASIC, simplifying firmware and improving link reliability under jitter and skew. |
Use Scenario: Building PCIe protocol analyzers or compliance test fixtures requiring precise control over transmit/receive behavior. IC Role / Device Role / Timing Role: Programmable PHY with loopback, polarity inversion, and SKP injection for deterministic signal path validation. Use Value: Enables bit-level visibility into 8B/10B streams and elastic buffer behavior-critical for debugging LTSSM stalls and SKP alignment issues. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PCIe PHY applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT8N34S01B | PCIe 2.0-compliant (5.0 Gbps), integrated PLL, no TI-PIPE interface; uses standard PIPE v3.0 with shared clock. | Requires PCIe 2.0 MAC; lacks P0s/P1 power state granularity and sideband controls like TX_DET_LOOPBACK. | Choose for higher-speed upgrades where MAC supports PIPE v3.0 and deeper power savings are not required. |
| Pericom PI3EQX1002 | PCIe 1.1 redriver (not full PHY); no 8B/10B encode/decode, no elastic buffer, no LTSSM state handling. | Suitable only for signal integrity boosting-not for endpoint/host PHY replacement; cannot replace MAC interface. | Select only for passive channel extension; not a functional substitute for XIO1100ZWSR in PHY-layer roles. |
Compared with IDT8N34S01B and PI3EQX1002, the XIO1100ZWSR uniquely delivers PCIe 1.1 PHY functionality with TI-PIPE flexibility, fine-grained power state control, and full protocol-aware features-making it irreplaceable in designs requiring MAC-agnostic, standards-compliant physical layer implementation.
Availability
XIO1100ZWSR is available at Aetrix Electronics and suitable for embedded host controllers, PCIe add-in cards, bridge devices, and test equipment requiring stable component supply and long-term industrial availability.
Supply support for XIO1100ZWSR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions, with decades of expertise in high-speed interface IP and PHY design.
The XIO1100ZWSR belongs to TI's PCI Express PHY product line, engineered specifically to simplify PCIe 1.1 integration in resource-constrained systems while maintaining full compliance and debug visibility.
FAQ
What is the primary function of the XIO1100ZWSR in a PCIe system?
The XIO1100ZWSR serves as a PCI Express 1.1-compliant physical layer transceiver that bridges the MAC layer to the serial link. It handles 8B/10B encoding/decoding, clock recovery, elastic buffering, electrical signaling (TXP/TXN, RXP/RXN), and LTSSM-aligned power state transitions-enabling reliable, standards-compliant PCIe x1 communication. Its TI-PIPE interface allows flexible integration with various MAC implementations.
Does the XIO1100ZWSR support PCIe 2.0 or higher speeds?
No, the XIO1100ZWSR is strictly compliant with PCI Express Base Specification Revision 1.1 and operates at 2.5 Gbps per lane. It does not support PCIe 2.0 (5.0 Gbps) or later revisions. The device lacks the circuitry for 5 GT/s signaling, enhanced equalization, or updated PIPE interface versions required for higher generations.
How does the TI-PIPE interface differ from the standard Intel PIPE interface?
The TI-PIPE interface differs in two key ways: it uses separate source-synchronous clocks (TX_CLK and RX_CLK) instead of a shared clock, and its 8-bit mode operates in DDR (250 MHz) rather than SDR. These changes improve timing margin and bandwidth efficiency but require MAC-side adaptation-unlike standard PIPE, which mandates a single SDR clock for both directions.
What power states does the XIO1100ZWSR support, and how are they controlled?
The XIO1100ZWSR supports P0 (full operation), P0s (transmit-idle), and P1 (deep idle) states, selected via POWERDOWN[1:0] inputs. Transitions are confirmed by PHY_STATUS assertion. P1_SLEEP can disable RX_CLK during P1 only. The device does not support P2 or beacon states, aligning with PCIe 1.1 LTSSM requirements for endpoint devices.
Can the XIO1100ZWSR operate with both 1.5 V and 1.8 V I/O interfaces?
Yes-the XIO1100ZWSR's TI-PIPE I/O voltage is determined by VDD_IO: 1.5 V when VDD_IO = 1.5 V, and 1.8 V when VDD_IO = 1.8 V. This dual-voltage capability allows seamless integration with MACs operating at either level, provided all associated power domains and termination match the selected VDD_IO setting.
XIO1100ZWSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 100-LFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- TI-PIPE
- Voltage - Supply:
- 1.35V ~ 1.65V, 3V ~ 3.6V
- Supplier Device Package:
- 100-NFBGA (12x12)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
XIO1100ZWSR FAQ
1.How can I place an order for XIO1100ZWSR through Aetrix?
Please submit a Request for Quotation (RFQ) for XIO1100ZWSR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for XIO1100ZWSR reliable?
The price and inventory of XIO1100ZWSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for XIO1100ZWSR is usually 5 days.
3.What payment methods are accepted for XIO1100ZWSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for XIO1100ZWSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for XIO1100ZWSR?
XIO1100ZWSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your XIO1100ZWSR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for XIO1100ZWSR?
For technical support, including XIO1100ZWSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your XIO1100ZWSR requirements.
6.How does Aetrix verify that XIO1100ZWSR is sourced from the original manufacturer or authorized distributors?
All XIO1100ZWSR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that XIO1100ZWSR meets industry standards.
7.What is the process for return or replacement of XIO1100ZWSR?
All XIO1100ZWSR units undergo pre-shipment inspection (PSI). If there is an issue with XIO1100ZWSR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The XIO1100ZWSR part is unused and in its original packaging.
Return procedure for XIO1100ZWSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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