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PM73122 Datasheet(PDF) 44 Page - PMC-Sierra, Inc |
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PM73122 Datasheet(HTML) 44 Page - PMC-Sierra, Inc |
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44 / 489 page  RELEASED PM73122 AAL1GATOR-32 DATASHEET PMC-1981419 ISSUE 7 32 LINK CES/DBCES AAL1 SAR PROCESSOR PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 19 Pin Name Type Pin No. Function TATM_ENB/RPHY_ENB /RENB Bidi H24 ATM: Transmit UTOPIA ATM Layer Enable is an active low signal asserted by the AAL1gator-32 during cycles when TATM_D contains valid data. It is not asserted until the AAL1gator-32 is ready to send a full cell. PHY: Receive UTOPIA/Any-PHY PHY Layer Enable is an active low signal asserted by the ATM layer to indicate RPHY_D and RPHY_SOC will be sampled at the end of the next cycle. If UTOP_MODE in UI_SRC_CFG is set to UTOPIA Level 2 Mode then the AAL1gator- 32 will drive data only if RPHY_ADD matches CFG_ADDR in the UI_SRC_ADD_CFG register the cycle before RPHY_ENB goes low. Any-PHY: This pin is the RENB input signal, which functions the same as RPHY_ENB. The only difference is that data is driven two cycles after selection instead of just one cycle. |
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