www.vitesse.com product brief 3.6gb/s 144x144 asynchronous crosspoint switch physical layer products VSC3140 general description the VSC3140 is a 144x144 asynchro- nous crosspoint switch, designed to carry broadband data streams. the fully non-blocking switch core is pro- grammed through a multi-mode port in- terface that allows random access pro- gramming of each input/output port. each data output can be programmed to connect to one of the 144 inputs. the signal path is unregistered and fully asynchronous, so there are no restric- tions on the phase, frequency, or sig- nal pattern on any input. each high- speed output is a fully differential switched current driver with on-die ter- minations for maximum signal integrity. a multi-mode, programming interface is provided that allows commands to be sent as serial data or multiplexed par- allel data. unused channels may be powered down to allow efficient use of the switch in applications that require only a subset of the channels. a sec- ondary serial access port allows asyn- chronous readback and configuration control to take place while the primary programming port is in use. features: per channel programmable input equalization per channel programmable output drive levels on board prbs generator/ detector parallel and serial programming modes secondary serial access port for configuration and monitoring non-blocking architecture with broadcast and multicast modes soft power down for unused channels boundary scan support for data i/o integrated temperature sensor/alarm on-chip input and output terminations benefits: 144x144 inputs and outputs allow creation of 3-stage clos switch fabrics of up to 10368 x 10368 array providing up to 37 terabits of data throughput programmable integrated signal equalization (ise) func- tion improves output jitter and multi-pass performance, re- ducing the need for inter-stage retimers in multi-stage switch fabrics dwdm platform core and edge router storage area network wavelength routers digital cross connect optical cross connect applications:
for more information on vitesse products visit the vitesse web site at www.vitesse.com or contact vitesse sales at (800) vitesse or sales@vitesse.com ? copyright 2001 vitesse semiconductor corporation and the vitesse logo are all registered trademarks of vitesse semiconductor corporation www.vitesse.com product brief physical layer products VSC3140 block diagram benefits continued: programmable ise and pro- grammable output drive level on an individual channel basis allow users to optimize the switch operation based on system requirements system level features such as drive/sense i/o ports and boundary scan allow in system diagnostic and moni- toring of each input and output for signal integrity through the entire switch specifications: 3.6gb/s nrz data bandwidth 144 inputs by 144 outputs crosspoint switch single 2.5v power supply 2.5/3.3v cmos/ttl control i/o differential cml data output driver 15/21w typical power in low/ high drive mode 20/25w max power in low/ high drive mode 125mhz multi-mode program- ming port high performance 45mm, 1.27mm pitch, 1072 bga package operating temperature range from 0c to 85c input signal equalization performance 3.6gb/s 144x144 asynchronous crosspoint switch VSC3140 input eye diagram output eye diagram user init register staging register input signal equalization (ise) and scan registers output level control and scan registers switch configuration register programming interface temperature alarm prbs generator/detector switch core config drive [1:0] sense [1:0] addr/data ale sec_sdin sec_write sec_read sec_sclk sec_sdout secondary access port prbs_out prbs_errdet prbs_in prbs_clk overtemp sec_cs a[143:0] y[143:0] reset init parallel/serial cs wr rd
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