PM7344 datasheet(95/293 Pages) PMC

95 / 293 page

PM7344 S/UNI-MPH

DATA SHEET

PMC-950449

ISSUE 6

MULTI-PHY USER NETWORK INTERFACE

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

inverted. When TDNINV is set to logic 1, the TDN/TOHO[x] output is inverted.

When TDNINV is set to logic 0, the TDN/TOHO[x] output is not inverted.

TUNI:

When the T1 or E1 format is selected, the TUNI bit enables the transmit

interface to generate unipolar digital outputs on the TDP/TDD[x] pin. When

TUNI is set to logic 1, the TDP/TDD[x] multifunction pin becomes the unipolar

output TDD[x], updated on the selected TCLKO edge. When TUNI is set to

logic 0, the TDP/TDD[x] and TDN/TOHO[x] multifunction pins become the

bipolar outputs TDP[x] and TDN[x], also updated on the selected TCLKO[x]

edge. The TUNI bit is ignored if either the J2 or Arbitrary framing formats are

selected.

TFALL:

The TFALL bit enables the Transmit Interface to sample the multifunction pin

TFPI/TOHI on the falling TCLKI edge. When TFALL is set to logic 1, the

interface is enabled to sample the TFPI/TOHI input on the falling TCLKI edge.

When TFALL is set to logic 0, the interface is enabled to sample the inputs on

the rising TCLKI edge.

TRISE:

The TRISE bit configures the interface to update the multifunction outputs on

the rising edge of TCLKO[x]. When TRISE is set to logic 1, the interface is

enabled to update the TDP/TDD[x] and TDN/TOHO[x] output pins on the

rising TCLKO[x] edge. When TRISE is set to logic 0, the interface is enabled

to update the outputs on the falling TCLKO[x] edge.

TRZ:

The TRZ bit configures the interface to transmit bipolar return-to-zero

formatted waveforms. When TRZ is set to logic 1, the interface is enabled to

generate the TDP[x] and TDN[x] output signals as RZ waveforms with

duration equal to half the TCLKO[x] period. When TRZ is set to logic 0, the

interface is enabled to generate the TDP[x] and TDN[x] output signals as

NRZ waveforms with duration equal to the TCLKO[x] period, updated on the

selected edge of TCLKO[x]. The TRZ bit can only be used when TUNI is set

to logic 0.

PM7344 датащи(PDF) 95 Page - PMC-Sierra, Inc