DS3163 Maxim Integrated Products, DS3163 Datasheet - Page 169
![IC TRPL ATM/PACKET PHY 400-PBGA](/photos/6/87/68748/400-bga_21-0306_sml.jpg)
DS3163
Manufacturer Part Number
DS3163
Description
IC TRPL ATM/PACKET PHY 400-PBGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3163.pdf
(384 pages)
Specifications of DS3163
Applications
*
Mounting Type
Surface Mount
Package / Case
400-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Each error type (framing or P-bit parity) has a separate enable. Continuous error insertion mode inserts errors at
every opportunity. Single error insertion mode inserts an error at the next opportunity when requested. The
framing multi-error insertion modes (SEF or OOMF) insert the indicated number of error(s) at the next opportunities
when requested; i.e., a single request will cause multiple errors to be inserts. The requests can be initiated by a
register bit(TSEI) or by the manual error insertion input (TMEI). The error insertion request source (register or
input) is programmable. The insertion of each particular error type is individually enabled. Once all error insertion
has been performed, the data stream is passed on to overhead insertion.
10.10.6.4 Transmit M23 DS3 Overhead Insertion
Overhead insertion can insert any (or all) of the DS3 overhead bits into the DS3 frame. The DS3 overhead bits X
X
TOHSOF). The P-bits (P
internally generated bit). The DS3 overhead insertion is fully controlled by the transmit overhead interface. If the
transmit overhead data enable signal (TOHEN) is driven high, then the bit on the transmit overhead signal (TOH) is
inserted into the output data stream. Insertion of bits using the TOH signal overwrites internal overhead insertion.
10.10.6.5 Transmit M23 DS3 AIS/Idle Generation
M23 DS3 AIS/Idle generation overwrites the data stream with AIS or an Idle signal. If transmit Idle is enabled, the
data stream payload is forced to a 1100 pattern with two ones immediately following each DS3 overhead bit. M
M
overwritten with the values one, zero, zero, and one (1001) respectively. X
P
are overwritten with 000.
If transmit AIS is enabled, the data stream payload is forced to a 1010 pattern with a one immediately following
each DS3 overhead bit. M
F
are overwritten with 11. P
And, C
10.10.6.5.1 Receive M23 DS3 Frame Format
The DS3 frame format is shown in
referred to as the far-end SEF/AIS bits). P
are the multiframe alignment bits that define the multiframe boundary. F
define the subframe boundary. Note: Both the M-bits and F-bits define the DS3 frame boundary. C
Application Identification Channel (AIC). C
10.10.6.5.2 Receive M23 DS3 Overhead Extraction
Overhead extraction extracts all of the DS3 overhead bits from the M23 DS3 frame. All the DS3 overhead bits X
X
and P
Application Identification Channel (AIC) is extracted from the C
(C-bit format) if the C
the C
change when an LOS, OOF, or AIS condition is present.
10.10.6.5.3 Receive DS3 Downstream AIS Generation
Downstream DS3 AIS (all ‘1’s) can be automatically generated on an OOF, LOS, or AIS condition or manually
inserted. If automatic downstream AIS is enabled, downstream AIS is inserted when an LOS or AIS condition is
declared, or no earlier than 2.25 ms and no later than 2.75 ms after an OOF condition is declared. Automatic
downstream AIS is programmable (on or off). If manual downstream AIS insertion is enabled, downstream AIS is
inserted. Manual downstream AIS insertion is programmable (on or off). Downstream AIS is removed when all
OOF, LOS, and AIS conditions are terminated and manual downstream AIS insertion is disabled.
X1
2
2
2
2
, P
, P
, and M
are overwritten with the calculated payload parity from the previous output DS3 frame. And, C
, F
1
1
11
X2
, P
2
, P
X1
bits are output as an error indication (modulo 2 addition of the calculated parity and the bit). In addition, the
, F
bit is set to zero in four of the last thirty-one consecutive multiframes. Note: The stored AIC bit must not
, C
2
2
, M
, M
3
X3
X2
bits are overwritten with the values zero, one, and zero (010) respectively. F
, and F
X
X
, and C
, F
, F
XY
XY
, and C
, and C
X4
X3
11
bits are overwritten with the values one, zero, zero, and one (1001) respectively. X
are overwritten with 000. AIS will overwrite a transmit Idle signal.
bit is set to one in thirty-one consecutive multiframes. The AIC is set to zero (M23 format) if
1
1
XY
1
XY
, M
and P
and P
are output on the receive overhead interface (ROH, ROHSOF, and ROHCLK). The P
can be sourced from the transmit overhead interface (TOHCLK, TOH, TOHEN, and
2
, and M
2
2
) are received as an error mask (modulo 2 addition of the input bit and the
are overwritten with the calculated payload parity from the previous DS3 frame.
Figure
3
bits are overwritten with the values zero, one, and zero (010) respectively.
X1
1
10-38. The X
and P
, C
X2
, and C
2
are the parity bits used for line error monitoring. M
X3
1
and X
are the stuff control bits for tributary #X.
11
2
are the Remote Defect Indication (RDI) bits (also
bit and stored in a register. The AIC is set to one
XY
1
and X
are the subframe alignment bits that
2
are overwritten with 11. P
X1
, F
X2
, F
X3
, and F
31
, C
1
, M
32
X4
, and C
2
11
1
, and M
bits are
and X
is the
1
and
33
1
1
1
2
3
1
,
,
,
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