RELEASED
PM7350 S/UNI DUPLEX
DATA SHEET
PMC-1980581
ISSUE 8
DUAL SERIAL LINK PHY MULTIPLEXER
Ball
Name
Ball
No. Function
Type
High Speed LVDS Links
OSX
Output
P8 The Output Start of Transfer (OSX) is only active in
Any-PHY bus slave mode (OANYPHY = 1
OMASTER = 0). When OANYPHY is logic low,
OSX is held low during cell transfer or high-
impedance otherwise.
OSX marks the start of the cell on the ODAT[15:0]
bus. When OSX is high, the first word of the cell
structure is present on the ODAT[15:0] stream.
OSX is updated on the rising edge of OFCLK and
considered valid only when the OENB signal was
sampled low in the previous cycle and the S/UNI-
VORTEX device was selected after the polling
process. OSX becomes high impedance (with a
cycle latency) upon sampling OENB high or if the
S/UNI-VORTEX device is not selected for transfer.
When OANYPHY is high, autonomous deselection
occurs after the last word of a cell resulting in
setting OSX high-impedance until reselection.
This input is only active if the SCIANY input is a
logic high.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
33
PMC [ PMC-SIERRA, INC ]
