ZL50012/GDC

ZL50012/GDC Features

• 512 channel x 512 channel non-blocking switch at2.048 Mb/s, 4.096 Mb/s or 8.192 Mb/s operation • Rate conversion between the ST-BUS inputs andST-BUS outputs • Per-stream ST-BUS input with data rate selectionof 2.048 Mb/s, 4.096 Mb/s or 8.192 Mb/s • Per-stream ST-BUS output with data rateselection of 2.048 Mb/s, 4.096 Mb/s or8.192 Mb/s; the output data rate can be differentthan the input data rate • Per-stream high impedance control output forevery ST-BUS output with fractional bitadvancement • Per-stream input channel and input bit delayprogramming with fractional bit delay • Per-stream output channel and output bit delayprogramming with fractional bit advancement • Multiple frame pulse outputs and reference clock • 3.3V I/O with 5 V tolerant inputoutputs • Per-channel constant throughput delayVDDVSSRESETODESTi0-15S/P ConverterData MemoryP/S ConverterSTo0-15FPiCKiInput TimingConnection MemoryOutput HiZ ControlSTOHZ0-15MicroprocessorInterfaceandInternalRegistersOutput TimingFPo0CKo0FPo1CKo1FPo2CKo2Test PortIC0 - 4CLKBYPSICONN0 - 2SDSCWR/ATD0-11A0-51DSMTIDTODTKCTTSRTAPLL1GS1MT2MTLLPA_DDVLLPA_SSVFigure 1 - ZL50012 Functional Block DiagramZarlink Semiconductor Inc.Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.Copyright 2002-2006, Zarlink Semiconductor Inc. All Rights Reserved.1

ZL50012/GDC Description

The device has sixteen ST-BUS inputs (STi0-15) and sixteen ST-BUS outputs (STo0-15). It is a non-blocking digitalswitch with 512 64 kb/s channels and performs rate conversion between the ST-BUS inputs and ST-BUS outputs.The ST-BUS inputs accept serial input data streams with the data rate of 2.048 Mb/s, 4.096 Mb/s or 8.192 Mb/s ona per-stream basis. The ST-BUS outputs deliver serial output data streams with the data rate of 2.048 Mb/s,4.096 Mb/s or 8.192 Mb/s on a per-stream basis. The device also provides sixteen high impedance control outputs(STOHZ 0-15) to support the use of external high impedance control buffers.The ZL50012 has features that are programmable on per-stream or per-channel basis including message mode,input bit delay, output bit advancement, constant throughput delay and high impedance output control.2Zarlink Semiconductor Inc.

ZL50012/GDC Applications

• Small and medium digital switching platforms • Access Servers • Time Division Multiplexers • Computer Telephony Integration • Digital Loop Carriers