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DISCLAIMER Integrated Device Technology, Inc. reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. IDT does not assume any responsibility for use of any circuitry described other than the circuitry embodied in an IDT product. The Company makes no representations that circuitry described herein is free from patent infringement or other rights of third parties which may result from its use.
Table of Contents ® Description of the EB12T3G2 Eval Board Notes Introduction .............................1-1 Board Features ..........................1-2 Hardware ..........................1-2 Software..........................1-2 Other............................1-2 Revision History ..........................1-2 Installation of the EB12T3G2 Eval Board EB12T3G2 Installation ........................2-1 Hardware Description ........................2-1 Reference Clocks..........................
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IDT Table of Contents Notes EB12T3G2 Eval Board Manual October 3, 2007...
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List of Tables ® Table 2.1 Clock Source Selection .......................2-1 Notes Table 2.2 Clock Frequency Selection ....................2-2 Table 2.3 Clock Spread Spectrum Selection ..................2-2 Table 2.4 SMA Connectors - Onboard Reference Clock ..............2-2 Table 2.5 External Power Connector - J1 ................... 2-3 Table 2.6 Downstream Reset Selection .....................
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IDT List of Tables Notes EB12T3G2 Eval Board Manual October 3, 2007...
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List of Figures ® Figure 1.1 Function Block Diagram of the EB12T3G2 Eval Board ............1-1 Notes EB12T3G2 Eval Board Manual October 3, 2007...
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IDT List of Figures Notes EB12T3G2 Eval Board Manual October 3, 2007...
Chapter 1 Description of the EB12T3G2 Eval Board ® Introduction Notes The 89HPES12T3G2 switch (also referred to as PES12T3G2 in this manual) is a member of IDT’s PCI Express® standard (PCIe®) based line of products. It is a Gen2 3-port switch, with 4 serial lanes per port. One upstream port is provided for connecting to the root complex (RC), and up to two downstream ports are available for connecting to PCIe endpoints or to another switch.
Chapter 2 Installation of the EB12T3G2 Eval Board ® EB12T3G2 Installation Notes This chapter discusses the steps required to configure and install the EB12T3G2 evaluation board. All available DIP switches and jumper configurations are explained in detail. The primary installation steps are: 1.
IDT Installation of the EB12T3G2 Eval Board Notes Signal +12V Table 2.5 External Power Connector - J1 PCI Express Analog High Power Voltage Converter A DC-DC converter (U18) provides a 2.5V PCI Express analog high power voltage (shown as VDDHA) to the PES12T3G2.
IDT Installation of the EB12T3G2 Eval Board Fundamental Reset Notes There are two types of Fundamental Resets which may occur on the EB12T3G2 evaluation board: – Cold Reset: During initial power-on, the onboard voltage monitor (TLC7733D) will assert the PCI Express Reset (PERSTN) input pin of the PES12T3G2.
IDT Installation of the EB12T3G2 Eval Board Notes Signal Description RSTHALT Reset Halt. When this signal is asserted during a PCI Express fundamental reset, the PES12T3G2 executes the reset procedure and remains in a reset state with the Master and Slave SMBuses active.
IDT Installation of the EB12T3G2 Eval Board SMBus Interfaces Notes The System Management Bus (SMBus) is a two-wire interface through which various system compo- nent chips can communicate. It is based on the principles of operation of I C. Implementation of the SMBus signals in the PCI Express connector is optional and may not be present on the host system.
IDT Installation of the EB12T3G2 Eval Board SMBus Master Interface Notes Connected to the master SMBus interface are three 16-bit I/O Expanders (PCA9555) and a serial EEPROM (24LC512). Three I/O Expanders are used as the interface for the onboard hot-plug controllers (MIC2591B).
IDT Installation of the EB12T3G2 Eval Board Notes Location Color Definition DS17 Green Port2: Linkup Indicator Green Port4: Linkup Indicator DS23 Green Port0: Linkup Indicator DS24 Green Port0: Activity Indicator Port2/4: Power Fault Indicator DS25 Green GPIO3 DS26 Green GPIO5 DS27 Green GPIO6...
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IDT Installation of the EB12T3G2 Eval Board Notes Side A Side B Ground PERn1 pair, Lane 1 PETp2 Transmitter differential Ground PETn2 pair, Lane 2 Ground Ground PERp2 Receiver differential Ground PERn2 pair, Lane 2 PETp3 Transmitter differential Ground PETn3 pair, Lane 3 Ground Ground...
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IDT Installation of the EB12T3G2 Eval Board Notes Side A Side B PETn10 pair, Lane 10 Ground Ground PERp10 Receiver differential Ground PERn10 pair, Lane 10 PETp11 Transmitter differential Ground PETn11 pair, Lane 11 Ground Ground PERp11 Receiver differential Ground PERn11 pair, Lane 11 PETp12...
Chapter 3 Software for the EB12T3G2 Eval Board ® Introduction Notes This chapter discusses some of the main features of the available software to give users a better under- standing of what can be achieved with the EB12T3G2 evaluation board using the device management soft- ware.
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IDT Software for the EB12T3G2 Eval Board Notes EB12T3G2 Eval Board Manual 3 - 2 October 3, 2007...
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REVISIONS DESCRIPTION DATE CHANGE BY STGC-0139R01 INITIAL RELEASE 2007-10-02 K. LEUNG SHEET DESCRIPTION ------------------------------- TITLE PAGE RESET, POWER CONNECTOR POWER REGULATORS CLOCKS I/O EXP, WAKE, ATTN HOT PLUG CONTROLLERS HOT PLUG - MOSFETS PORT 0 EDGE CONN (U/S) PORT 2 CONNECTOR (D/S) PORT 4 CONNECTOR (D/S) PES12T3G2 - EEPROM, JTAG PES12T3G2 - POWER...
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3_3V 3_3V 3_3V 3_3V 3_3V 3_3V POWER INDICATOR BOARD RESET PLACE NEAR TOP EDGE LABEL 'POWER' PERST_N 3_3V M_PERSTN PERST_N TLC7733D RESINN SENSE RESET CONTROL RESETN SN74LVC1G125 LABEL 'GND' PB_SW STIFF_6P 12V_DS 12_0V +12.0V -> +3.3V 3_3V 3_3VIO POWER CONN +12V VO_SEN+ Track...
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