PM7344 S/UNI-MPH
DATA SHEET
PMC-950449
ISSUE 6
MULTI-PHY USER NETWORK INTERFACE
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.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
79
PMC [ PMC-SIERRA, INC ]
