TMXF28155 Datasheet, PDF (564/606 Pages) Agere Systems – TMXF28155 Super Mapper 155/51 Mbits/s SONET/SDH x28/x21 DS1/E1

TMXF28155/51 Super Mapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Preliminary Data Sheet
May 2001
22 Cross Connect (XC) Block Functional Description (continued)
22.8 DS3 Connectivity
TPG
TEST
GEN
XC3
TPM
TEST
MON
M13
MAPPER
MUX
M13
MAPPER
DEMUX
SPE
MAPPER
SPE_DS3_AIS
RX
(TO M13)
PIN_RLSC52
PD+ PD– _{(FROM HS TELECOM BUS)}
PIN_DS3POSDATAIN
EXT.
PIN
I/O
PIN_DS3NEGDATAIN
PIN_DS3DATAINCLK
DS3
(CLEAR
CHANNEL)
CROSS
CONNECT
SPE HAS DIRECT
INPUTS FROM PINS
PIN_DS3POSDATAIN
PIN_DS3NEGDATAIN
PIN_DS3DATAINCLK
SPE
MAPPER
TX
PIN_TLSC52
(FROM HS TELECOM BUS)
PIN_DS3POSDATAOUT
PIN_DS3NEGDATAOUT
PIN_DS3DATAOUTCLK
EXT.
PIN
I/O
Figure 93. DS3 Cross Connect
5-9192(F)r.1
The cross connect block also supports DS3 mapping to/from the SPE mapper and the M13 MUX, to dedicated
external pins (PIN). There is also an external NSMI I/O channel, which transfers DS3 data as well. In both cases
(standard and NSMI), the available sources are the M13 DeMUX or the SPE mapper, a set of external I/O pins, or
the test-pattern generator. The DS3 crosspoint’s connectivity is determined by an even smaller set of source3 iden-
tifiers.
Table 621. DS3 Connectivity
Destination Source
External I/O
M13 MUX
TPG
SPE
External I/O
&
%
T
NSMI/DS3
M13 MUX
%
X
T
DS3
TPM
T
T
X
T
SPE
NSMI/DS3
DS3
X
X
Note: DS3 external I/O is supported by dedicated pins. NSMI uses the multifunction system interface.
The symbols in Table 621 are defined below:
% = Primary (expected) modes of operation.
X = Unsupported mode.
& = represents loopback path.
NSMI = NSMI mode only.
T = Test mode.
564
Agere Systems Inc.