User Manual
___________________________________________________ DS33M30/M31/M33 ABRIDGED DATA SHEET
Rev: 111908 2 of 20
Table of Contents
1. GENERAL DESCRIPTION AND FEATURE HIGHLIGHTS.............................................................4
1.1 DEVICE FEATURE OVERVIEW ...........................................................................................................5
1.2 TDM FEATURE OVERVIEW ..............................................................................................................6
1.3 SONET/SDH..................................................................................................................................7
1.3.1 STS-3/STM-1 SerDes ............................................................................................................................ 7
1.3.2 STS-3/STM-1 Framer and Formatter..................................................................................................... 7
1.3.3 STS-3c/AU-4 Pointer Processing........................................................................................................... 8
1.3.4 STS-3c SPE/VC-4 Path Termination ..................................................................................................... 8
1.3.5 STS-3 Mux/Demux (DS33M31 and DS33M33 Only)............................................................................. 8
1.3.6 STS-1/AU-3/TU-3 Formatter and Framer (DS33M31 and DS33M33 Only) .......................................... 9
1.3.7 STS-1/AU-3/TU-3 Pointer Processing (DS33M31 and DS33M33 only) ................................................ 9
1.3.8 STS-1/VC-3 Path Termination (DS33M31 and DS33M33 only).......................................................... 10
1.4 PDH (DS33M31 AND DS33M33 ONLY) ........................................................................................12
1.4.1 Add/Drop DS3/E3 Framer/Formatter (DS33M31 and DS33M33 only)................................................ 12
1.4.2 DS3/E3 Ethernet Mapping (DS33M31 and DS33M33 only)................................................................ 13
1.4.3 Line DS3/E3 Framer/Formatter (DS33M33 only) ................................................................................ 13
1.4.4 Loopback.............................................................................................................................................. 14
1.5 VIRTUAL CONCATENATION (VCAT) (DS33M31 AND DS33M33 ONLY)............................................14
1.5.1 SONET/SDH VCAT/LCAS ................................................................................................................... 14
1.5.2 PDH VCAT/LCAS................................................................................................................................. 15
1.6 ENCAPSULATION ...........................................................................................................................15
1.6.1 GFP-F Encapsulation (per ITU-T G.7041) ........................................................................................... 15
1.6.2 HDLC Encapsulation............................................................................................................................ 15
1.6.3 cHDLC Encapsulation.......................................................................................................................... 15
1.6.4 X.86 Encapsulation Support ................................................................................................................ 15
1.7 ETHERNET FEATURE OVERVIEW .................................................................................................... 15
1.7.1 Ethernet MAC Interface........................................................................................................................ 16
1.7.2 Ethernet Bridging for 10/100 ................................................................................................................ 16
1.7.3 Ethernet Traffic Classification .............................................................................................................. 16
1.7.4 Ethernet Traffic Profiling and Policing.................................................................................................. 16
1.7.5 Ethernet Traffic Scheduling.................................................................................................................. 16
1.7.6 Ethernet Control Frame Processing..................................................................................................... 16
1.7.7 Q-in-Q .................................................................................................................................................. 16
1.8 SDRAM INTERFACE......................................................................................................................16
1.9 CLOCK RATE ADAPTER (CLAD).....................................................................................................16
1.10 SPI SERIAL MICROPROCESSOR FEATURES.................................................................................17
1.11 PARALLEL MICROPROCESSOR INTERFACE (DS33M31 AND DS33M33 ONLY)..............................17
1.12 TEST AND DIAGNOSTICS.............................................................................................................17
2. STANDARDS COMPLIANCE ........................................................................................................ 18
3. APPLICATIONS ............................................................................................................................. 20










