SMT373 user manual - Sundance Multiprocessor Technology Ltd.
Contents
1. The SMT373 is modified DIRO sets the direction of the line USERDEFO DO to D15 CLKIN and WEN DIRI of the line USERDEF1 Each transceiver acts as a driver when its direction pin is high and as a receiver when its direction pin is low This allows for direction control and flow control Version 1 8 Page 10 of 15 SMT373 User Manual Do a o Do Jels oes 4 CLKIN 9 D8 dee dio D10 1 1 3 9 7 1 3 5 7 9 1 3 5 7 9 3 5 7 6 15 TE TEE 6 25 D11 ER TEE Figure 3 LVDS connector pin out Version 1 8 Page 11 of 15 SMT373 User Manual External connector pin out A 68 way SCSI connector is fitted on the back plate of the PC for the external transmission Ref SMT373 CAB The connector is a HARTING 60 04 068 5344 screw lock 60 01 000 9020 Standard twisted pair or flat ribbon SCSI cables can be used Signal Name Pin Pin Signal Name Open 1 35 open Open 2 36 open Open 3 37 open Open 4 38 open Open 5 39 GND GND 6 40 GND GND 7 41 GND CLKIN 8 42 CLKIN DO 9 43 DO 01 10 44 D1 02 11 45 D2 D3 12 46 D3 04 13 47 D4 D5 14 48 D5 D6 15 49 D6 D7 16 50 D7 D8 17 51 D8 09 18 52 D9 D10 19 58 010 011 20 54 011 012 21 55 012 013 22 56 013 014 23 57 D14 015 242. the 3 3V provided through the mounting holes The board uses LVDM transceivers They are TIA EIA 644 standard compliant devices except that the output current of the drivers is doubled The board is compatible with LVDS drivers and has 1000 termination resistors It is compatible with LVDS receivers because it outputs twice the current of a LVDS driver and therefor will keep the same voltage for a double terminated line In half duplex transmissions it has the advantage to keep the voltage as in unidirectional transmissions whereas LVDS would have reduced it by two due to the double terminated lines If the line is not driven or in open circuit the output is forced high Version 1 8 Page 7 of 15 SMT373 User Manual The SN65LVDM 176 main features are following Low Voltage Differential Driver and Receiver for Half Duplex Operation Designed for Signalling Rates of 400 Mbit s ESD Protection Exceeds 12 kV on Bus Pins Operates from a Single 3 3 V Supply Low Voltage Differential Signalling with Typical Output Voltages of 350 mV and a 50 O 1 Propagation Delay Times Driver 1 7 ns Typical Receiver 3 7 ns Typical Power Dissipation at 200 MHz Driver 50 mW Typical Receiver 60 mW Typical LVTTL Levels are 5 V Tolerant Bus Pins are High Impedance when Disabled or With VCC Less Than 1 5 V Open Circuit Fail safe receiver Characterised for operation from 40 to 85 Storage temperature range from 65 C to 15
3. 0 C Module height When the SMT373 is directly connected to the SMT358 as a piggy back board Direct connection version the resulting height with the top LVDS cables fitted is 1 25 inches 3 cm from the top layer of the carrier board The Remote version of the board can be fitted on a spare TIM site or anywhere else as long as 3 3V is provided and uses SDB cables to be connected to the module The height of the module itself including the connectors is 0 5 inches 1 3 cm So for example on a TIM slot the maximum height with the cable fitted is 0 75 inches 1 9 cm from the top layer of the carrier board Version 1 8 Page 8 of 15 SMT373 User Manual Connectors Pin out 9 5 GND GND GND N GND ND ND CLK Q m a 13 DIR1 alv 0 USERDEF 1 GND 15 GND 17 D7 GND 08 GND 21 D9 GND 23 GND 25 s T 1 T 36 35 USERDEFO DIRO 37 WEN Dii Figure 2 SDB connector pin out DIRO sets the direction of the line USERDEFO DIR1 of the line USERDEF1 and DIR2 of lines DO to D15 CLKIN and WEN Each transceiver acts as a driver when its direction pin is high and as a receiver when its direction pin is low Version 1 8 Page 9 of 15 SMT373 User Manual USERDEF 1 Figure 3 SDB connector pin out for shb2sdb adaptors
4. 58 D15 Version 1 8 Page 12 of 15 SMT373 User Manual USERDEFO 25 59 USERDEFO WEN 26 60 WEN USERDEF1 27 61 USERDEF1 GND 28 62 GND GND 29 63 GND GND 30 64 open open 31 65 open open 32 66 open open 33 67 open open 34 68 open Figure 4 External connector pin out Version 1 8 Page 13 of 15 SMT373 User Manual Connectors position Figure 5 Version 1 Direct connection Version 1 8 Page 14 of 15 SMT373 User Manual Bottom Figure 6 Version 2 Remote connection Version 1 8 Physical Layout Page 15 of 15 SMT373 User Manual 5 Milli HNEHEHEEEHEHEHHHHHEHU 7 1998 5 a SUNDANCE 18 EZ E m mm mm EE mm mm mm mm mm E mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm E mm jm SMT373 ES mm mm mm mm mm mm mm mm mm mE mm mm Em mm mm mm mm mm J2 n J3 au Figure 7 Top physical layout He le 21 Figure 8 Bottom physical layout
5. SUNDANCE 52 SMT373 User Manual This Document is intended only for the use of the individual or entity to which it is addressed and contains information that is privileged and confidential If the reader of this message is not the intended recipient or the employee or agent responsible for delivering the message to the recipient you are hereby notified that any dissemination distribution or copying of this communication is strictly prohibited If you have received this communication in error please notify sender immediately by telephone and return the original message to sender Thank you Certificate Number FM 55022 User Manual QCF42 Version 3 8 11 00 Sundance Multiprocessor Technonlogy Ltd 2000 Version 1 8 Page 2 of 15 SMT373 User Manual Revision History Date Comments Engineer Version 17 09 99 Initial release J V 1 0 possibility added 30 11 00 Changed the document layout to the new 1 7 template Also changed some of the text so it used a consistent font 27 01 05 Pinout corrected for DIR2 and DIRO 1 8 Update for shb compatibility using shb2sdb adaptor Version 1 8 Page 3 of 15 SMT373 User Manual Table of Contents AL oo setae 3 Table OF us iecore o tin e Re da pe ta cd dud 4 MERE URP di PERENNE T A 5 WOODS PPM 5 Maim Tealufes i ecd ed e ea e een o E E
6. d Eee 6 Technical Cm 6 Module EE 7 Connectors PINOUT aah eod nen A nc n CUI no md 8 External connector pin oUl sioe de rn rae erie BL Liar CREE Guetta 11 CONMECIOS i us nO MM ID MM MIN MS 13 Physical n cadat S mta ben a an 15 Version 1 8 Page 4 of 15 SMT373 User Manual Table of figure Figure 1 Connectivity diagrama a EURO dC det te 5 Figure 2 SDB connector 8 Figure 3 LVDS connector pin out ace coh ade ea ia endete Spe and ita 10 Figure 4 External connector 12 Figure 5 Version 1 Direct 13 Figure 6 Version 2 Remote 14 Figure Top physical cnet ed Lec haec eb oed 15 Figure 8 Bottom physical 15 Version 1 8 Page 5 of 15 SMT373 User Manual Scope This document describes the SMT373 module 18 1000 40 way connectors BEEN 40 way connectors 23 TTL or LVTTL 20 LVDS usable per 18 1000 pairs connector connector Figure 1 Connectivity diagram D ET Signifies RI D D D Legend Vers
7. ion 1 8 Page 6 of 15 SMT373 User Manual Main features The SMT373 converts Sundance Digital Bus SDB LVTTL signals to Low Voltage Differential Signals LVDS and can connect two systems several meters apart The board operates a conversion between LVTTL TTL tolerant signals and Low Voltage Differential Signals It provides two bi directional 20 bit channels that can transfer up to 2 GBytes s thanks to 40 SN65LVDM176 transceivers from TI that can individually reach 400Mbits s Each channel provides 16 bits of data a clock and a clock enable signals with their direction controlled by a single signal Two other signals can be used for the bus arbitration in a bi directional application The direction of each of them can be controlled independently All the direction control signals are accessible through the connectors and therefore can be set by the board they are connected to The Sundance Digital Bus already provides 200Mbytes s data transfer rate between TIMs Thanks to this module a TIM can communicate with another board several meters away It only requires 3 3V Power supply Technical Description There are two versions of the board which differ in the way the TTL signals are input Version 1 Direct connection The Mezzanine card is connected PCB to PCB on a carrier TIM through well positioned SDB connector as they are on the SMT358 Version 2 Remote connection The Mezzanine card is connected through SDB cables It only needs
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