PM7346 S/UNI-QJET
DATASHEET
PMC-960835
ISSUE 6
SATURN QUAD USER NETWORK INTERFACE FOR J2, E3, T3
8
PIN DESCRIPTION
Pin Name
Type
Pin No. Function
TPOS[4]
TPOS[3]
TPOS[2]
TPOS[1]
Output C6
Transmit Digital Positive Pulse
(TPOS[4:1]).TPOS[4:1] contains the
positive pulses transmitted on the B3ZS-
encoded DS3, HDB3-encoded E3, or
B8ZS-encoded J2 transmission system
when the dual-rail output format is
selected.
B4
D3
F2
TDATO[4]
TDATO[3]
TDATO[2]
TDATO[1]
Transmit Data (TDATO[4:1]). TDATO[4:1]
contains the transmit data stream when
the single-rail (unipolar) output format is
enabled or when a non-DS3/E3/J2 based
transmission system is selected.
The TPOS/TDATO[4:1] pin function
selection is controlled by the TFRM[1:0]
and the TUNI bits in the S/UNI-QJET
Transmit Configuration Registers. Output
signal polarity control is provided by the
TPOSINV bit in the S/UNI-QJET Transmit
Configuration Registers. Both TPOS[4:1]
and TDATO[4:1] are updated on the falling
edge of TCLK[4:1] by default, and may be
configured to be updated on the rising
edge of TCLK[4:1] through the TCLKINV
bit in the S/UNI-QJET Transmit
Configuration Registers. Finally, both
TPOS[4:1] and TDATO[4:1] can be
updated on the rising edge of TICLK[4:1],
enabled by the TICLK bit in the
S/UNI-QJET Transmit Configuration
Registers.
TNEG[4]
TNEG[3]
TNEG[2]
TNEG[1]
Output A5
Transmit Digital Negative Pulse
(TNEG[4:1]). TNEG[4:1] contains the
negative pulses transmitted on the B3ZS-
encoded DS3, HDB3-encoded E3, or
B8ZS-encoded J2 transmission system
when the dual-rail NRZ output format is
selected.
D5
E4
F1
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