PM7346 S/UNI-QJET
DATASHEET
PMC-960835
ISSUE 6
SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
Pin Name
Type
Pin No. Function
TCLK[4]
TCLK[3]
TCLK[2]
TCLK[1]
Output B5
Transmit Output Clock (TCLK[4:1]).
TCLK[4:1] provides the transmit direction
timing. TCLK[4:1] is a buffered version of
TICLK[4:1] and can be enabled to update
the TPOS/TDATO[4:1] and
C4
D2
G3
TNEG/TOHM[4:1] outputs on its rising or
falling edge.
RPOS[4]
RPOS[3]
RPOS[2]
RPOS[1]
Input
D6
D1
E2
H4
Receive Digital Positive Pulse
(RPOS[4:1]). RPOS[4:1] contains the
positive pulses received on the B3ZS-
encoded DS3, the HDB3-encoded E3, or
the B8ZS-encoded J2 transmission
system when the dual-rail NRZ input
format is selected.
RDATI[4]
RDATI[3]
RDATI[2]
RDATI[1]
Receive Data (RDATI[4:1]). RDATI[4:1]
contains the data stream when the single-
rail (unipolar) NRZ input format is enabled
or when a non-DS3/E3/J2 based
transmission system is being processed
(for example RDATI may contain a DS1 or
E1 stream).
The RPOS/RDATI[4:1] pin function
selection is controlled by the RFRM[1:0]
bits in the S/UNI-QJET Configuration
Registers and by the UNI bits in the DS3
FRMR, the E3 FRMR, or the J2 FRMR
Configuration Registers. Both RPOS[4:1]
and RDATI[4:1] are sampled on the rising
edge of RCLK[4:1] by default, and may be
enabled to be sampled on the falling edge
of RCLK[4:1]. This sampling is controlled
by the RCLKINV bit in the S/UNI-QJET
Receive Configuration Registers. In
addition, signal polarity control is provided
by the RPOSINV bit in the S/UNI-QJET
Receive Configuration Registers.
PMC-SIERRA, INC. PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA INC., AND ITS CUSTOMERS’ INTERNAL USE 23
PMC [ PMC-SIERRA, INC ]
