PM7350-PI datasheet(42/241 Pages) PMC

42 / 241 page

RELEASED

PM7350 S/UNI-DUPLEX

DATA SHEET

PMC-1980581

ISSUE 5

DUAL SERIAL LINK PHY MULTIPLEXER

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE

Ball

Name

Type

Ball

No.

Function

High Speed LVDS Links

OSOC

Output

In all bus modes, OSOC is updated on the rising

edge of OFCLK. When not presenting valid data,

OSOC is high impedance.

In SCI-PHY/Utopia bus slave mode (OMASTER =

0, OANYPHY = 0) the output port start of cell

(OSOC) indication signal marks the first word of the

cell transfer on the ODAT[15:0] data bus. OSOC is

driven immediately upon sampling OENB low if the

previous polling cycle resulted in this device being

selected (see the OCA description below).

In Any-PHY bus slave mode (OMASTER = 0,

OANYPHY = 1) the output port start of cell (OSOC)

indication signal marks the second word of the cell

transfer on the ODAT[15:0] data bus. OSOC is

driven after one OFCLK cycle delay upon sampling

OENB low if the previous polling cycle resulted in

this device being selected (see the OCA description

below). Autonomous deselection occurs after the

last word of a cell resulting in setting OSOC high-

impedance until reselection.

In SCI-PHY/Utopia bus master mode (OMASTER

= 1, OANYPHY = 0) the output port start of cell

(OSOC) indication signal marks the first word of the

cell transfer on the ODAT[15:0] data bus. OSOC is

valid coincident with OENB assertion..

When OANYPHY is high, autonomous deselection

occurs after the last word of a cell resulting in

setting OSOC high-impedance until reselection.

This output is only active if the SCIANY input is a

logic high.

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