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PM73121 Datasheet(PDF) 40 Page - PMC-Sierra, Inc |
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PM73121 Datasheet(HTML) 40 Page - PMC-Sierra, Inc |
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40 / 223 page  PM73121 AAL1gator II PMC-Sierra, Inc. PMC-980620 ,VVXH AAL1 SAR Processor Data Sheet QSPQSD@U6S`Ã6I9Ã8PIAD9@IUD6GÃUPÃQH8TD@SS6ÃDI8Ã6I9ÃAPSÃDUTÃ8VTUPH@ST¶ÃDIU@SI6GÃVT@ 2.8.3.1 SDF-MF Mode MACGTSDFMF = [208 + (8 × K)] × L 2.8.3.1.1 For E1 Mode TCGTSDFMFE1 = MACGTSDFMF × (8000 × N × 33 ÷ 32) ÷ K If all queues are E1 SDF-MF and the same size, all timeslots are used, and SYS_CLK= 38.88 MHz, then the minimum number of bytes per cell is 20. 2.8.3.1.2 For T1 Mode TCGT SDFMFT1 = MACGTSDFMF × (8000 × N × 49 ÷ 48) ÷ K If all queues are T1 SDF_MF the same size, all timeslots are used, and SYS_CLK= 38.88 MHz, then the minimum number of bytes per cell is 13. 2.8.3.2 SDF-FR Mode MACGTSDFFR = [202 + (8 × K)] × L TCGTSDFFR = MACGTSDFFR × (8000 × N) ÷ K For E1 mode, if all queues are the same size, all timeslots are used, and SYS_CLK= 38.88 MHz, then the minimum number of bytes per cell is 19. For T1 mode, if all queues are the same size and all timeslots are used and SYS_CLK= 38.88 MHz, then the minimum number of bytes per cell is 12. 2.8.3.3 UDF-ML Mode MACGTUDFML = [202 + (4 × K)] × L TCGTUDFML = MACGTUDFML × (8000 × 32) ÷ K If all queues are unstructured and all lines are used and SYS_CLK= 38.88 MHz, then the mini- mum number of bytes per cell is 14. The sum of TCGTSDFMFE1 + TCGT SDFMFT1 + TCGTSDFFR + TCGTUDFML for all queues + TCGTOAM must be less than 1 second. |
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