CX28331-1X CONEXANT [Conexant Systems, Inc], CX28331-1X Datasheet - Page 16

• Manufacturer Part Number: CX28331-1X
• Description: Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
• Manufacturer: CONEXANT [Conexant Systems, Inc]

1.0 Pin Description
1.1 Pin Assignments
Table 1-1. CX2833i-1x Pin Definitions (2 of 6)
1-6
CX28331-1x CX28332-1x CX28333-1x
54
—
55
—
—
—
—
—
53
—
—
—
49
—
48
—
—
—
—
—
Pin #
—
68
—
69
33
32
—
—
—
67
34
—
—
63
—
64
38
37
—
—
—
68
—
69
54
55
33
32
—
67
53
34
—
63
—
64
49
48
38
37
Signal Name
RPOS1/
RNEG1/
RPOS2/
RNEG2/
RPOS3/
RNEG3/
TPOS1/
TNEG1/
TPOS2/
TNEG2/
TPOS3/
TNEG3/
RNRZ1
RNRZ2
RNRZ3
RPOS/
RNEG/
RLCV1
RLCV2
RLCV3
RCLK2
RCLK3
TNRZ1
TNRZ2
TNRZ3
RCLK1
TPOS/
TNEG/
RNRZ
RLCV
RCLK
TNRZ
NC1
NC2
NC3
NC
Digital Data Pins
Conexant
Ch1 receive Positive rail
or NRZ data
Ch1 receive Negative rail
or line code violation
Ch2 receive Positive rail
or NRZ data
Ch2 receive Negative rail
or line code violation
Ch3 receive Positive rail
or NRZ data
Ch3 receive Negative rail
or line code violation
Receive clock Ch1
Receive clock Ch2
Receive clock Ch3
Ch1 transmit Positive
rail or NRZ data
Ch1 transmit Negative
rail or no connect data
Ch2 transmit Positive or
NRZ data
Ch2 transmit Negative
rail or no connect data
Ch3 transmit Positive or
NRZ data
Ch3 transmit Negative
rail or no connect data
Description
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
I/O/P
O
O
O
O
O
O
O
O
O
I
I
I
I
I
I
Resynchronized receive data
intended to be strobed out by the
corresponding RCLK.
When ENDECDIS = 1, these outputs
are positive and negative AMI data
(RPOS and RNEG).
When ENDECDIS = 0, these outputs
are decoded NRZ data (RNRZ) and
line code violation (RLCV). A line
code violation is indicated when
RLCV = 1.
See notes on the ENDECDIS pin in
the Control Signals section.
Recovered clock for each channel
receiver, intended for strobing the
corresponding RDAT into the
following framer or logic.
Synchronized transmit data
intended to be strobed in by the
corresponding TCLK.
When ENDECDIS = 1, these inputs
are expected to be positive and
negative AMI data (TPOS and
TNEG).
When ENDECDIS = 0, these inputs
are expected to be uncoded NRZ
data (TNRZ) and no connects (NC).
See notes on the ENDECDIS pin in
the Control Signals section.
CX28331/CX28332/CX28333
Notes
100985A