PM7344 Datasheet, PDF (93/293 Pages) PMC-Sierra, Inc – SATURN QUAD T1/E1 MULTI-PHY USER NETWORK INTERFACE DEVICE

DATA SHEET
PMC-950449
ISSUE 6
PM7344 S/UNI-MPH
MULTI-PHY USER NETWORK INTERFACE
RUNI:
When the T1 or E1 format is selected, the RUNI bit enables the interface to
receive uni-polar digital data and line code violation indications on the
multifunction pins RDP/RDD[x] and RDN/RLCV/ROH[x]. When RUNI is set to
logic 1, the RDP/RDD[x] and RDN/RLCV/ROH[x] multifunction pins become
the data and line code violation inputs, RDD[x] and RLCV[x], sampled on the
selected RCLKI[x] edge. When RUNI is set to logic 0, the RDP/RDD[x] and
RDN/RLCV/ROH[x] multifunction pins become the positive and negative
pulse inputs, RDP[x] and RDN[x]. If RUNI is set to logic 1, the DCR bit in the
CDRC Configuration Register must also be set to logic 1. The RUNI bit is
ignored if either the J2 or Arbitrary framing formats are selected.
RFALL:
The RFALL bit enables the Receive Interface to sample the multifunction pins
on the falling RCLKI[x] edge when clock recovery is disabled. When RFALL is
set to logic 1, the interface is enabled to sample the RDP/RDD[x] and
RDN/RLCV/ROH[x] inputs on the falling RCLKI[x] edge. When RFALL is set
to logic 0, the interface is enabled to sample the inputs on the rising RCLKI[x]
edge.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE 77