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1. General Information The PLX PEX 8612-AA RDK is a Rapid Development Kit based on the PEX 8612, a 12-lane, 3-port PCI Express Gen 2 switch. The PEX 8612-AA RDK provides a complete hardware and software development platform that facilitates getting designs up and running quickly, lowering risk and reducing time-to-market. This RDK allows the upstream port of the PEX 8612 to be directly plugged into a system board’s x8 or x16 PCI Express connector, or...
PEX 8612-AA RDK PCI Express Interfaces The PEX 8612-AA RDK is designed around the PEX 8612, a 3-port, 12-lane Gen 2 switch, and is based on the form factor specified in the PCI Express CEM 2.0 Specification. The PEX 8612-AA RDK offers four PCI Express (PCIe) interfaces: a x8 PCI Express edge connector (P1), two x16 PCI Express slots (SLOT 1 and SLOT 2;...
Configuration Module Receptacle CM1 is a 200-pin high-speed Mezzanine Connector. It is soldered on the PCB of PEX 8612-AA RDK. It directly connects to lane 4 to lane 7 of the PEX 8612, lane 0 to lane 3 of SLOT 2, and lane 0 to lane 3 of 4x mini-SAS connector IP1.
Depending on the port configuration, port 1 at connector SLOT 2 can be a downstream port, upstream port or an NT port. By default, the PEX 8612-AA RDK sets this port to be the x4 link downstream port 1. Power is provided...
Reference Clock Circuitry The PEX 8612-AA RDK reference clock circuitry contains a one-to-four differential clock fan out buffer (U2) from SpectraLinear (CY28400-2). The clock fan out buffer supports four 100 MHz PCI Express reference clocks with the option for constant frequency and spread spectrum outputs. When the RDK is plugged into a PCI Express slot...
C bus and external I/O expander devices. The PEX 8612-AA RDK implements Hot-Plug control circuitry for SLOT 1 and SLOT 2. SLOT 1 uses the on-chip parallel Hot-Plug controller while SLOT 2 uses the Serial Hot-Plug control capability through the I C and I/O expander.
PCI Express connector SLOT 2. Serial EEPROM The PEX 8612-AA RDK contains an 8-pin DIP socket for a serial EEPROM (U17). The board is populated with a blank On Semi CAT25080LI-G 32-Kbit device. The CAT25080LI-G device can directly interface to the PEX 8612.
Power Distribution The PEX 8612-AA RDK has two sources of DC power. The first source is the card edge connector (P1). The x8 connector provides up to 2.1A at 12V and 3.0A at 3.3V from the PCI Express edge card connector it plugs in. The power from P1 is intended to power the PEX 8612, and the on-board electronic components.
LED Indicators The PEX 8612-AA RDK provides a number of LED indicators including power-on indication, PEX 8612 port link status indication, Hot-Plug LED indication, fatal error indication, event/error indication, and voltage level monitoring indications. Table 2-1 below provides a quick explanation of the various board indicators.
Port Link Status Indication (D18 – D20) The PEX 8612-AA RDK provides up to three green color link status LEDs, D18 to D20, to indicate its port 0, 1, and 5 link states. LED on, off, and three blinking patterns cover all five states of port link status. (See...
PEX 8612 Voltage Level Monitoring (D10 – D11) The PEX 8612-AA RDK provides voltage level monitoring circuit to monitor the 1 volt and 2.5 volt power to the PEX 8612. The circuit contains an Intersil multiple voltage supervisory ISL6132, two bi-color LEDs, D10 and D11, and various value resistors.
3. On-Board Connectors, Switches, and Jumpers DIP Switches The PEX 8612-AA RDK contains nine user controllable DIP switches (SW1-SW8) for selecting the slot ID for the serial Hot-Plug, enable/disable Hot-Plug signals, enable/bypass the serial Hot-Plug and parallel Hot-Plug, upstream port select, port configuration, NT upstream port select, I C address settings and test mode settings.
Serial Hot-Plug Controller Attention Button (S2) The PEX 8612-AA RDK provides a manual switch S2 for the attention button to the serial Hot-Plug circuit. When pushed and released, the switch generates an active low pulse to the Attention Button Input of the serial Hot-Plug controller.
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Reset Express Slots Converters Circuit LEDs DIPSWITCHES INTERFACE PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 www.plxtech.com www.plxtech.com www.plxtech.com...
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RX3n_IP1 TX3n_IP1 TX3- RX3- I_PASS_26CKT_75783_0036 I_PASS_26CKT_75783_0036 FCI84517_10x20 FCI84517_10x20 PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 www.plxtech.com www.plxtech.com www.plxtech.com...
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RX31p TX31n ITP15 ITP15 ITP16 ITP16 RX31n PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. RX31n ITP1-ITP16 are probe holes 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 The hole size of GP1-4 should be www.plxtech.com...
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TX7n_P1 {2} PRSNT2# PERn7 x8 PCI Express Contr x8 PCI Express Contr PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 www.plxtech.com...
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SW DIP-2 SW DIP-2 Default Setting of SW2: 1: off (disable MRL#_S) 2: off (disable Serial HP) PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 www.plxtech.com...
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PWRLED_B# GREEN GREEN GREEN GREEN 4.7K 4.7K BUTTON_B#_I PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. BUTTON_B#_I {8} SW PUSHBUTTON SW PUSHBUTTON 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 www.plxtech.com...
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GREEN TV11 TV11 TV16 TV16 DR_14 5V_A GREEN GREEN TV12 TV12 TV17 TV17 DR_15 PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 3.3VCC CMD15-22SRUGC CMD15-22SRUGC GREEN GREEN TV13 TV13 TV18 TV18 DR_16 870 W Maude Ave, Sunnyvale, CA 94085...
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RX39n RX39n MICTOR 38 MICTOR 38 REXT_4 PEX8612AA_19X19 PEX8612AA_19X19 PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 www.plxtech.com www.plxtech.com...
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PEX8612AA_19X19 2.5VCC TP3 marks with 2.5V TP2 marks with GND TP4 marks with GND PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. PLX TECHNOLOGY, INC. 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085 870 W Maude Ave, Sunnyvale, CA 94085...
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