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PM7367 데이터시트(PDF) 32 Page - PMC-Sierra, Inc |
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PM7367 데이터시트(HTML) 32 Page - PMC-Sierra, Inc |
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32 / 323 page ![]() PM7367 FREEDM-32P32 DATA SHEET PMC-1991499 ISSUE 2 FRAME ENGINE AND DATA LINK MANAGER PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMER’S INTERNAL USE 18 Pin Name Type Pin No. Function IRDYB I/O K18 The active low initiator ready (IRDYB) signal is used to indicate whether the initiator is ready to start or continue with a transaction. IRDYB works in conjunction with TRDYB to complete transaction data phases. When IRDYB is set high and a transaction is in progress, the initiator is indicating it cannot complete the current data phase and is forcing a wait state. When IRDYB is set low and a transaction is in progress, the initiator is indicating it has completed the current data phase. The data phase is completed when IRDYB is set low and the target ready signal (IRDYB) is also set low. When the FREEDM-32P32 is the initiator, IRDYB is an output. When the FREEDM-32P32 is the target, IRDYB is an input. When the FREEDM-32P32 is not involved in the current transaction, IRDYB is tri-stated. IRDYB is updated on the rising edge of PCICLK or sampled on the rising edge of PCICLK depending on whether it is an output or an input. |
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