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PM7367 데이터시트(PDF) 31 Page - PMC-Sierra, Inc |
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PM7367 데이터시트(HTML) 31 Page - PMC-Sierra, Inc |
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31 / 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 17 Pin Name Type Pin No. Function TRDYB I/O K19 The active low target ready signal (TRDYB) indicates when the target is ready to start or continue with a transaction. TRDYB works in conjunction with IRDYB to complete transaction data phases. During a transaction in progress, TRDYB is set high to indicate that the target cannot complete the current data phase and to force a wait state. TRDYB is set low to indicate that the target can complete the current data phase. The data phase is completed when TRDYB is set low and the initiator ready signal (IRDYB) is also set low. When the FREEDM-32P32 is the initiator, TRDYB is an input. When the FREEDM-32P32 is the target, TRDYB is an output. During accesses to FREEDM-32P32 registers, TRDYB is set high to extend data phases over multiple PCICLK cycles. When the FREEDM-32P32 is not involved in the current transaction, TRDYB is tri-stated. As an output signal, TRDYB is updated on the rising edge of PCICLK. As an input signal, TRDYB is sampled on the rising edge of PCICLK. |
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