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MT90820AP Datasheet(PDF) 1 Page - Mitel Networks Corporation |
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MT90820AP Datasheet(HTML) 1 Page - Mitel Networks Corporation |
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1 / 10 page  2-179 ® Features • 2,048 channel non-blocking switch • Maintains frame integrity on concatenated channels. • Per-channel selection of minimum or constant throughput delay • Serial streams at 2.048, 4.096 or 8.192Mb/s • Frame offset delay measurement • Programmable frame delay offset • Per-channel three-state control • Per-channel message mode • Control interface compatible to Intel/Motorola CPUs • Block programming feature for connection memory • ST-BUS/MVIP and GCI interfaces • Test Port compatible to IEEE-1149.1 standard Applications • Medium and large switching platforms • C.O. switches • CTI application • Voice/data multiplexer • Digital cross connects • ST-BUS/HMVIP interface functions Description The Large Digital Switch (LDX) is an advanced digital switch allowing the users to build up to 2048 channel non-blocking switch. The serial interface can be at 2, 4 or 8 Mb/s compatible to ST-BUS/MVIP/ HMVIP or GCI standards. The LDX can be programmed to provide either minimum or constant throughput delay on all its channels. The device also features three-state control and message mode on per-channel basis. To manage the problem of line delays, each input stream can have an individually programmed input frame offset delay. The offset delay can be calibrated with a dedicated frame measurement facility inside the device. Figure 1 - Functional Block Diagram STo0 STo1 STo2 STo3 STo4 STo5 STo6 STo7 STo8 STo9 STo10 STo11 STo12 STo13 STo14 STo15 STi0 STi1 STi2 STi3 STi4 STi5 STi6 STi7 STi8 STi9 STi10 STi11 STi12 STi13 STi14 STi15 Parallel to Serial Converter Output MUX Multiple Buffer Data Memory Test Port Microprocessor Interface Timing Unit Internal Registers FRM FE/ AS/ IM DS RD CS R/W WR A7-A0 ALE HCLK DTA D15-D8/ AD7-AD0 CSTo ODE VSS Connection Memory CLK VDD HMVIP TDI TDO TEST RESETB TCK TRSTB Serial to Parallel Converter TMS ISSUE 1 May 1995 MT90820 Large Digital Switch (LDX) Ordering Information MT90820AP 84 Pin PLCC MT90820AL 100 Pin QFP -40 to +85°C Advance Information CMOS ST-BUS ™ FAMILY |
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Similar Description - MT90820AP |
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