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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PM7385 датащи(PDF) 21 Page - PMC-Sierra, Inc |
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PM7385 датащи(HTML) 21 Page - PMC-Sierra, Inc |
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21 / 244 page  PM7385 FREEDM-84A672 DATA SHEET PMC-1990114 ISSUE 6 84 LINK, 672 CHANNEL FRAME ENGINE AND DATA LINK MANAGER WITH ANY-PHY PACKET INTERFACE PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 12 Pin Name Type Pin No. Function DPL Input AD1 The SBI DROP bus payload signal (DPL) indicates valid data within the SBI TDM bus structure. This signal is asserted during all octets making up a tributary. This signal may be asserted during the V3 or H3 octet within a tributary to accommodate negative timing adjustments between the tributary rate and the fixed TDM bus structure. This signal may be deasserted during the octet following the V3 or H3 octet within a tributary to accommodate positive timing adjustments between the tributary rate and the fixed TDM bus structure. Multiple PHY devices can drive DPL at uniquely assigned tributary column positions. DPL is sampled on the rising edge of REFCLK. DV5 Input AE4 The SBI DROP bus payload indicator signal (DV5) locates the position of the floating payloads for each tributary within the SBI TDM bus structure. Timing differences between the port timing and the TDM bus timing are indicated by adjustments of this payload indicator relative to the fixed TDM bus structure. Multiple PHY devices can drive DV5 at uniquely assigned tributary column positions. All movements indicated by this signal must be accompanied by appropriate adjustments in the DPL signal. DV5 is sampled on the rising edge of REFCLK. |
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