PM7367 datasheet(32/323 Pages) PMC

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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

Pin Name

Type

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.

PM7367 数据表(PDF) 32 Page - PMC-Sierra, Inc

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