Texas Instruments. XIO2000AI PCI Express to PCI Bus Translation Bridge. PCI Express Interface Circuit Analysis

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1 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge PCI Express Interface Circuit Analysis For questions, comments, or more information about this report, or for any additional technical needs concerning semiconductor and electronics technology, please call Sales at Chipworks Richmond Road, Suite 500, Ottawa, ON K2H 5B7 Canada Tel: Fax:

2 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Some of the information in this report may be covered by patents, mask and/or copyright protection. This report should not be taken as an inducement to infringe on these rights Chipworks Inc. This report is provided exclusively for the use of the purchasing organization. It can be freely copied and distributed within the purchasing organization, conditional upon the accompanying Chipworks accreditation remaining attached. Distribution of the entire report outside of the purchasing organization is strictly forbidden. The use of portions of the document for the support of the purchasing organization's corporate interest (e.g., licensing or marketing activities) is permitted, as defined by the fair use provisions of the copyright act. Accreditation to Chipworks must be attached to any portion of the reproduced information. CAR CKCM Revision 1.0 Published: May 5, 2010

3 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Table of Contents Overview Schematics Cell Library Signal Cross-Reference List About Chipworks

4 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Overview List of Figures...Page 1 List of Schematics...Page 1 Introduction...Page 6 Brief Design Overview...Page 6 Component Descriptions...Page 8 Device Summary Sheet...Page 12

5 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Page 1 List of Figures To view, please click on the appropriate bookmark in the panel on the left Package Markings Package X-Ray Die Markings Die Photograph Annotated Die Photograph Die Photograph Metal 1 List of Schematics PCI Express Transceiver and Clock Generation Top Level Phase-Locked Loop and Clock Generation Reference and Feedback Clock Dividers Selectable Reference Clock Divider Feedback Clock Divider Selectable Feedback Clock Divider Feedback Clock Divide by Feedback Clock Divide by PLL Phase Frequence Detector PFD Control and CP Keep-Up Circuit Charge Pump and Loop Filter Unused Charge Pump Reference Voltage Generator Reference Voltage Generator Reference Voltage Generator Voltage Controlled Oscillator VCO Cell VCO Output Stage TX Clock Phase Adjustment TX Reference Voltage Generator TX 2 to 4 Decoder TX Clock Phase Multiplexor 1

6 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Page TX Clock Phase Multiplexor TX Enabled Buffers TX Clock Phase Interpolator TX IDAC Control TX IDAC Cell Interpolated and Bypass TX Clock Phase Multiplexor TX Clock Phase Deskew and Duty Cycle Distortion Circuitry TX Duty Cycle Error Amplifier TX DCD Comparator RX Clock Phase Adjustment RX Reference Voltage Generator RX Reference Voltage Generator RX 2 to 4 Decoder RX Clock Phase Multiplexor RX Enabled Buffers RX Clock Phase Interpolator RX IDAC Control RX IDAC Cell RX Clock Phase Deskew and Duty Cycle Distortion Circuitry RX Duty Cycle Error Amplifier RX DCD Comparator Clock Detection Circuit and Buffers Clock Divide by Clock Detection Circuit Phase Frequency Detector Timer Timer Self-Toggling Flip-Flop Timer Timer Clock Divide by Timer Clock Divide by Timer 4

7 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Page PCI Express Receiver RX Termination Selectable RX Termination Resistors RX Input Amplifier RX Input Amplifier Capacitors RX Input Amplifier Adjustable NMOS RX Input Amplifier Adjustable Resistors RX Input Amplifier Adjustable Resistors RX Sampler Clock Buffers Edge Sensitive Flip-Flop RX 4 to 16 Serial to Parallel Converter and Retiming RX 1 to 4 Serial to Parallel Converter RX 1 to 4 Serial to Parallel Converter RX 1 to 4 Serial to Parallel Converter RX Retiming Registers RX Serial to Parallel Converter and Retiming Control Counter Bit Counter Serial In Serial Out Registers Serial In Serial Out Registers Serial In Serial Out Registers Single-Ended Receivers and Reference Generator RX Single-Ended Comparator RX Amplitude Detector RX Amplitude Comparator RX Amplitude Comparator Secondary ESD Reference Voltage Generator Buffer Chain

8 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Page PCI Express Transmitter TX 10 to 2 Serializer and Data Selector TX Serializer Clock Divider Clock Divider TX 4 to 1 Parallel to Serial Converter TX Even Odd Data Multiplexor TX Main and De-Emphasis Driver and Termination TX Common Mode Detector TX Comparator TX Comparator TX Data Generator TX Ring Oscillator TX Frequency Divide by TX Timer Transmitter Data Selector and Coding and Other Standard Cell Logic TX Data Buffers TX Data Selector TX Data Sequence Generator TX Data Generator Retiming Registers TX Data Generator Parallel In Parallel Out Registers TX Data Generator OR Gate TX Enable Control Buffers TX Multi-Function Registers t o 1 Multiplexor Parallel In Parallel Out Registers Multi-Function Registers Clock Multiplexors Clock Multiplexor Control Logic Counter

9 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge Page Counter Register Cell Register Cell Unextracted Standard Cell Areas ESD for I/O Pads RX ESD TX ESD ESD for Power Supply Pads Analog Power Supply ESD Analog Power Supply ESD Analog Power Supply ESD Analog Power Supply ESD Ground Supply ESD Ground Supply ESD PERSTN Input Stage PERSTN ESD PERSTN Input Buffer

10 Texas Instruments XIO2000AI PCI Express to PCI Bus Translation Bridge About Chipworks Chipworks is the recognized leader in reverse engineering and patent infringement analysis of semiconductors and electronic systems. The company s ability to analyze the circuitry and physical composition of these systems makes them a key partner in the success of the world s largest semiconductor and microelectronics companies. Intellectual property groups and their legal counsel trust Chipworks for success in patent licensing and litigation earning hundreds of millions of dollars in patent licenses, and saving as much in royalty payments. Research & Development and Product Management rely on Chipworks for success in new product design and launch, saving hundreds of millions of dollars in design, and earning even more through superior product design and faster launches. Contact Chipworks To find out more information on this report, or any other reports in our library, please contact Chipworks at: Chipworks 3685 Richmond Rd. Suite 500 Ottawa, Ontario K2H 5B7 Canada T: F: Web site: info@chipworks.com Please send any feedback to feedback@chipworks.com