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PEX 8648-AA RDK Hardware Reference Manual, Version 1.2
Copyright © 2010 by PLX Technology, Inc. All rights reserved

24

4

Base Board Mechanicals/Component Placement

Figure 22

illustrates the PEX 8648 RDK base board and component placement.

Figure 23

illustrates the

PEX 8648 RDK base board dimensions.

Figure 22. PEX 8648 RDK Base Board Mechanical Outline

Figure 23. PEX 8648 RDK Base Board Dimensions

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Summary of Contents for PEX 8648-AA

Page 1: ...AA RDK Hardware Reference Manual Version 1 2 December 2010 Website www plxtech com Technical Support www plxtech com support Copyright 2010 by PLX Technology Inc All Rights Reserved Version 1 2 Decemb...

Page 2: ...ons to this publication known as errata PLX assumes no liability whatsoever including infringement of any patent or copyright for sale and use of PLX products PLX Technology and the PLX logo are regis...

Page 3: ...TUS LED Indicators 17 3 5 2 UP PORT LED Indicators 17 3 5 3 NT PORT LED Indicators 17 3 6 Hardware Strapping Balls 18 3 7 Power Circuitry 20 3 8 Reset Circuitry 21 3 9 Serial EEPROM Interface U2 21 3...

Page 4: ...nd Status LED Indicators 16 Figure 17 PEX 8648 RDK Base Board Hardware Strapping DIP Switches SW1 SW11 SW4 SW5 SW9 SW6 SW2 and SW10 Default Settings 18 Figure 18 PEX 8648 RDK Base Board Power Circuitr...

Page 5: ...le for any errors or incidental or consequential damages in connection with the furnishing performance or use of this manual or examples herein PLX assumes no responsibility for damage or loss resulti...

Page 6: ...to connect the adapter board to the base board and a Software Development Kit SDK The SDK is downloadable from the PLX web site at www plxtech com products sdk This manual primarily focuses on the PE...

Page 7: ...ad Pacing intelligent bandwidth allocation Dual Cast INTA PEX_INTA and FATAL ERROR FATAL_ERR Conventional PCI SERR equivalent ball support Compliant to the following specifications PCI Local Bus Speci...

Page 8: ...1 All available Port width combinations are possible with the PEX 8648 RDK by means of Configuration modules that enable versatile routing of the Lanes from the PEX 8648 switch to the PCI Express conn...

Page 9: ...PEX 8648 AA RDK Hardware Reference Manual Version 1 2 Copyright 2010 by PLX Technology Inc All rights reserved 4 Figure 3 PEX 8648 RDK Base Board Component Layout...

Page 10: ...lso there is sufficient clearance for the computer lid to close Each Station has four possible Port configurations x4x4x4x4 x16 x8x8 and x8x4x4 The lowest four Lanes of Station 0 Lanes 0 through 3 rou...

Page 11: ...L IP1 IP2 IP3 IP4 L Figure 8 x4 UP x4 NT x4x4 DOWN x8x4x4 LL IP1 IP2 J2 J3 L Figure 9 Station 1 Port Configuration Configuration Module Installed P2 SW2 4 3 Setting Connectors Used Refer to x4x4x4x4 D...

Page 12: ...uting arrangement for each configuration The routing for Station 2 is the same as for Station 1 except that it uses J8 through J11 and Lanes 32 through 47 of the PEX 8648 switch PEX8648 27 x 27 16 31...

Page 13: ...t 2010 by PLX Technology Inc All rights reserved 8 PEX8648 27 x 27 16 31 0 15 32 47 Configuration Module x8x8 Figure 6 Station 0 x8 UP and x8 DOWN Factory Default PEX8648 27 x 27 16 31 0 15 32 47 Conf...

Page 14: ...Station 0 must be configured as x8x8 but the Configuration Module used must be x16 SAS Lanes 4 7 SAS Lanes 8 11 SAS Lanes 12 15 SAS Lanes 0 3 Figure 8 Station 0 x8 UP and x8 NT SAS SAS SAS SAS Lanes 0...

Page 15: ...2010 by PLX Technology Inc All rights reserved 10 PEX8648 27 x 27 16 31 0 15 32 47 P2 J7 J6 J5 J4 Configuration Module x4x4x4x4 Figure 10 Station 1 x4x4x4x4 DOWN PEX8648 27 x 27 16 31 0 15 32 47 P2 J7...

Page 16: ...PLX Technology Inc All rights reserved 11 PEX8648 27 x 27 16 31 0 15 32 47 P2 J7 J6 J5 J4 Configuration Module x8x8 Figure 12 Station 1 x8x8 DOWN Factory Default PEX8648 27 x 27 16 31 0 15 32 47 P2 J...

Page 17: ...on a serial I 2 C interface in conjunction with an external I O Expander IC can be used to support Hot Plug on any Port The PEX 8648 RDK base board has external Hot Plug circuitry that supports Parall...

Page 18: ...PORT NUMBER UP PORT NT PORT PORT STATUS J9 J10 J11 J6 J7 J8 J4 J5 IP1 IP2 IP3 IP4 P4 P5 P6 P7 P8 P9 P10 P11 J12 J13 J14 JP11 JP13 JP12 P2 Configuration Module P3 SLOT8 HP SLOT5 HP RESET PERST ATN LED...

Page 19: ...se clocks connects to the PEX 8648 switch and is always enabled The other 11 clocks connect to the 11 PCI Express slot connectors Except for Slot 5 and Slot 8 these RefClks are always enabled Slot 5 i...

Page 20: ...8648 AA RDK Hardware Reference Manual Version 1 2 Copyright 2010 by PLX Technology Inc All rights reserved 15 PEX8648 27 x 27 16 31 0 15 32 47 Figure 15 PEX 8648 RDK Base Board Reference Clock Circui...

Page 21: ...witch settings The on board Configuration modules determine the PEX 8648 RDK base board s hardwired width and Port Number associated with the cable and each PCI Express slot These are indicated by the...

Page 22: ...Lanes are up Blinking 0 5 seconds On 0 5 seconds Off Link is up 2 5 GT s all Lanes are up Blinking 1 5 seconds On 0 5 seconds Off Link is up 2 5 GT s reduced Lanes are up Blinking 0 5 seconds On 1 5...

Page 23: ...y to perform various types of hardware initialization without the use of software These Strapping balls are brought out to a bank of eight DIP switches on the PEX 8648 RDK base board SW1 SW11 SW4 SW5...

Page 24: ...he MRL signal for Parallel Hot Plug capability to Port 5 0 SW9 1 SHP ENABLE Enables Hot Plug capability to Port 8 using the Serial Hot Plug interface 1 2 SHP MRL Simulates the MRL signal for Serial Ho...

Page 25: ...ote The user must power up the PEX 8648 RDK base board before powering up the Host computer so that enumeration will see the PEX 8648 switch and any downstream devices A circuit detects the power up s...

Page 26: ...be able to regulate its voltages Power to Slot 5 is controlled by a dual voltage Hot Plug Controller chip U15 which is controlled by the PEX 8648 switch s Port 5 Hot Plug interface If Port 5 is the up...

Page 27: ...the Corelis JTAG single TAP cable AS00790050 A0 Figure 19 JTAG Header Top View 3 11 I 2 C Interface JP8 and JP9 The PEX 8648 RDK base board includes a two wire I 2 C compatible Slave mode interface w...

Page 28: ...T WIDTH PORT NUMBER UP PORT NT PORT PORT STATUS J9 J10 J11 J6 J7 J8 J4 J5 IP1 IP2 IP3 IP4 P4 P5 P6 P7 P8 P9 P10 P11 J12 J13 J14 JP11 JP13 JP12 SLOT8 HP SLOT5 HP RESET PERST SAS Lanes 4 7 SAS Lanes 8 1...

Page 29: ...ights reserved 24 4 Base Board Mechanicals Component Placement Figure 22 illustrates the PEX 8648 RDK base board and component placement Figure 23 illustrates the PEX 8648 RDK base board dimensions Fi...

Page 30: ...1 1 Monitoring Points Table 4 lists the functions of all monitoring points available for use on the PEX 8648 RDK base board Table 4 PEX 8648 RDK Base Board Monitoring Points Reference Designator Descr...

Page 31: ...the PEX 8648 RDK base board was not powered up before the Host CPU DS28 DS17 UP_PORT 11 0 Green Indicates which Port is the upstream Port for Ports 11 through 0 respectively DS32 DS29 NT_PORT 3 0 Gre...

Page 32: ...re Strapping Balls The remaining controls are three pushbutton switches defined in Table 6 Table 6 PEX 8648 RDK Base Board Controls Reference Designator Pushbutton Name Description SW3 RESET Initiates...

Page 33: ...ane capacitance provided by the PCB layer stackup and discrete de coupling capacitors Plane capacitance filters noise above approximately 100 MHz The footprints for the discrete de coupling capacitors...

Page 34: ...A RDK Hardware Reference Manual Version 1 2 Copyright 2010 by PLX Technology Inc All rights reserved 29 Figure 25 PEX 8648 RDK Base Board Power Ball and Perimeter De Coupling Capacitor Footprints Reve...

Page 35: ...d three power planes The target signal impedance for all routing layers is 50 ohms 5 single ended impedance and 91 ohms 5 differential This PCB layer stackup was chosen for the following reasons Power...

Page 36: ...rive Beaverton OR 97006 USA Tel 503 619 0569 Fax 503 644 6708 www pcisig com PCI Local Bus Specification Revision 3 0 PCI Bus Power Management Interface Specification Revision 1 2 PCI to PCI Bridge Ar...

Page 37: ...AJC226K02 0R CAP TANTALUM 22UF 20V 10 SMD EIA size C C97 C98 C99 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 Digi Key 478 1711 1 ND 22uF 3 32 Panason...

Page 38: ...DIFF 0805 SMD SMT 0805 DS17 DS18 DS19 DS20 DS21 DS22 DS23 DS24 DS25 DS26 DS27 DS28 DS29 DS30 DS31 DS32 DS45 DS46 DS47 DS48 DS49 DS50 DS51 DS52 DS53 DS54 DS55 DS56 DS59 DS60 Digi Key 67 1553 1 ND Green...

Page 39: ...HM 1 10W 1 0603 SMD SMT 0603 R42 R43 Digi Key P2 26KHCT ND 2 26K 30 4 Panasonic ERJ 3GEYJ391V RES 390 OHM 1 10W 5 0603 SMD SMT 0603 R48 R49 R164 R169 Digi Key P390GCT ND 390 31 4 Yageo 9C08052A0R 00JL...

Page 40: ...T ND 4 7K 47 1 CTS 741X163472J RES ARRAY 4 7KOHM 8TERM 8RES SMD 741X CTS RN 16 R257 Digi Key 741X163472JCT ND 4 7K 48 4 Panasonic ERJ 3EKF3481V RES 3 48K OHM 1 10W 1 0603 SMD SMT 0603 R291 R293 R296 R...

Page 41: ...4CB3Q16 244 IC Bus Switch 16 Bit SSOP48 U20 U21 SN74CB3Q16244 71 1 Fairchild NC7SZ00M5 X IC NAND Gate Tpd 15nsec 24mA SOT23 5 U22 NC7SZ00 72 2 Panasonic ERJ 1TYJ101U RES 100 OHM 1W 5 2512 SMD SMT 2512...

Page 42: ...3 1 ITT SDA08H1BD SWITCH DIP TOP SLIDE EXT 8POS DIP16 SW1 Digi Key CKN6091 ND SW DIP 8 114 2 ITT SDA06H1BD SWITCH DIP TOP SLIDE EXT 6POS DIP12 SW2 SW10 Digi Key CKN6079 ND SW DIP 6 115 1 ITT SDA03H1BD...

Page 43: ...signator s Distrib utor Distributor Part Part Compa ny PARTS THAT SHOULD NOT BE ASSEMBLED 400 2 Yageo 9C06031A0R 00JLHFT RES 0 0 OHM 1 10W 5 0603 SMD SMT 0603 R124 R180 Digi Key 311 0 0GCT ND NL 401 4...

Page 44: ...CT THE PEX8648 CONFIGURATION x8 x4 x4 x12 x8 x4 x4 x12 x4 x4 x4 x4 x12 x4 x8 EEPROM JTAG I2C STRAPPING SWITCHES SLOT1 SLOT2 SLOT3 SLOT4 SLOT5 SLOT6 SLOT7 SLOT8 SLOT9 SLOT10 SLOT11 1 Functional Block D...

Page 45: ...logy Inc 870 W Maude Avenue Sunnyvale CA 94085 www plxtech com C 2 21 Tuesday November 16 2010 PREPREG Er 4 1 4 2 mil L7 GND2 1 2 mil L8 SIGNAL 4 0 6 mil L1 SIGNAL 1 2 0 mil L2 GND1 0 6 mil L3 SIGNAL...

Page 46: ...gy Inc 870 W Maude Avenue Sunnyvale CA 94085 www plxtech com C 3 21 Tuesday November 16 2010 C2 0 1uF C2 0 1uF C9 0 1uF C9 0 1uF C31 0 1uF C31 0 1uF C7 0 1uF C7 0 1uF C19 0 1uF C19 0 1uF C17 0 1uF C17...

Page 47: ..._17 9 Deneb_Txn_17 9 Deneb_Txp_18 9 Deneb_Txp_24 7 Deneb_Txn_18 9 Deneb_Txn_24 7 Deneb_Txp_19 9 Title Size Document Number Rev Date Sheet of 91 0082 100 A 102 PEX8648 RDK Station 1 INTERFACE PLX Techn...

Page 48: ...p_34 10 Deneb_Txp_40 7 Deneb_Txn_34 10 Deneb_Txn_40 7 Deneb_Txp_35 10 Title Size Document Number Rev Date Sheet of 91 0082 100 A 102 PEX8648 RDK Station 2 Interface PLX Technology Inc 870 W Maude Aven...

Page 49: ...5 E6 E6 E7 E7 E8 E8 E9 E9 E10 E10 E11 E11 E12 E12 E13 E13 E14 E14 E15 E15 E16 E16 E17 E17 E18 E18 E19 E19 E20 E20 E21 E21 E22 E22 E23 E23 E24 E24 E25 E25 E26 E26 E27 E27 E28 E28 E29 E29 E30 E30 E31 E3...

Page 50: ...31 E31 E32 E32 E33 E33 E34 E34 E35 E35 E36 E36 E37 E37 E38 E38 E39 E39 E40 E40 F1 F1 F2 F2 F3 F3 F4 F4 F5 F5 F6 F6 F7 F7 F8 F8 F9 F9 F10 F10 F11 F11 F12 F12 F13 F13 F14 F14 F15 F15 F16 F16 F17 F17 F18...

Page 51: ...Tp6 B41 PETn6 B42 GND B43 GND B44 PETp7 B45 PETn7 B46 GND B47 PRSNT2 B48 GND B49 PETp8 B50 PETn8 B51 GND B52 GND B53 PETp9 B54 PETn9 B55 GND B56 GND B57 PETp10 B58 PETn10 B59 GND B60 PERn10 A61 GND A6...

Page 52: ...A1 12V A2 12V A3 GND A4 TCLK A5 TDI A6 TDO A7 TMS A8 3 3V A9 3 3V A10 PERST A11 12V B1 12V B2 12V B3 GND B4 SMCLK B5 SMDAT B6 GND B7 3 3V B8 TRST B9 3 3VAUX B10 WAKE B11 RSVD B12 PETp0 B14 PETn0 B15...

Page 53: ...A2 12V A3 GND A4 TCLK A5 TDI A6 TDO A7 TMS A8 3 3V A9 3 3V A10 PERST A11 12V B1 12V B2 12V B3 GND B4 SMCLK B5 SMDAT B6 GND B7 3 3V B8 TRST B9 3 3VAUX B10 WAKE B11 RSVD B12 PETp0 B14 PETn0 B15 GND B16...

Page 54: ...I2C Port Status and GPIO Hot Plug Spare and Misc U1D PEX8648 STRAP_TESTMODE 0 Y6 STRAP_TESTMODE 1 AF2 STRAP_TESTMODE 2 AD4 STRAP_TESTMODE 3 W2 STRAP_UPSTRM_PORTSEL 0 G25 STRAP_UPSTRM_PORTSEL 1 G24 STR...

Page 55: ...G19 VSS H1 VSS H2 VSS H4 VSS H5 VSS H6 VSS H7 VSS H9 VSS H10 VSS H11 VSS H12 VSS H13 VSS H14 VSS H15 VSS H16 VSS H17 VSS H18 VSS H20 VSS H21 VSS H22 VSS H23 VSS H25 VSS N14 VSS N18 VSS N19 VSS N24 VS...

Page 56: ...0 01uF C128 0 01uF U3 CY28400 2 U3 CY28400 2 VDD 1 VDD 5 VDD 11 VDD 18 VDD 24 VSS 4 OE_INV 25 VDD_A 28 VSS_A 27 SRC_IN 2 SRC_IN 3 OE_1 8 OE_6 21 HIGH_BW 17 SRC_STP 16 PWRDWN 15 SCLK 13 SDATA 14 IREF...

Page 57: ...istor for additional filtering R132 33 2 1 R132 33 2 1 R138 49 9 1 R138 49 9 1 C140 0 01uF C140 0 01uF R114 33 2 1 R114 33 2 1 R146 0 Shunt R146 0 Shunt 1 2 3 R147 33 2 1 R147 33 2 1 R119 33 2 1 R119...

Page 58: ...e Sheet of 91 0082 100 A 102 PEX8648 RDK Switches PLX Technology Inc 870 W Maude Avenue Sunnyvale CA 94085 www plxtech com C 15 21 Tuesday November 16 2010 Solderside Componentside 128 6 msec Soldersi...

Page 59: ...ay November 16 2010 Title Size Document Number Rev Date Sheet of 91 0082 100 A 102 PEX8648 RDK CPLD Glue Logic PLX Technology Inc 870 W Maude Avenue Sunnyvale CA 94085 www plxtech com C 16 21 Tuesday...

Page 60: ...mounted on component side PROBE MODE OUTPUTS PROBE MODE INPUTS Resistor array mounted on component side NAND U22 NC7SZ00 NAND U22 NC7SZ00 A 1 B 2 GND 3 Y 4 VCC 5 TPV34 TPV34 TPV33 TPV33 TPV38 TPV38 T...

Page 61: ...082 100 A 102 PEX8648 RDK Port Width Indicators PLX Technology Inc 870 W Maude Avenue Sunnyvale CA 94085 www plxtech com C 18 21 Tuesday November 16 2010 DS12 Red DS12 Red A 7 B 6 C 4 D 2 E 1 F 9 G 10...

Page 62: ...nology Inc 870 W Maude Avenue Sunnyvale CA 94085 www plxtech com C 19 21 Tuesday November 16 2010 R212 5 1K R212 5 1K DS46 Green DS46 Green 2 1 R221 5 1K R221 5 1K Q20 MMBT3904LT1 Q20 MMBT3904LT1 1 3...

Page 63: ...R282 0 R276 5 1K R276 5 1K R248 0 02 1 R248 0 02 1 Q31 IRF7470 Q31 IRF7470 D 5 D 6 D 7 D 8 S 1 S 2 S 3 G 4 R253 5 1K R253 5 1K C152 0 1uF C152 0 1uF SW7 B3S 1002 SW7 B3S 1002 1 2 3 4 R277 5 1K R277 5...

Page 64: ...ed Grn DS63 4 3 2 1 J12 banana_jack J12 banana_jack R243 4 00K 1 R243 4 00K 1 R313 4 53K 1 R313 4 53K 1 R240 5 1K R240 5 1K R242 27K R242 27K R308 6 81K 1 R308 6 81K 1 R309 1 50K 1 R309 1 50K 1 Red Gr...

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