CX28342 Datasheet, PDF (1/195 Pages) List of Unclassifed Manufacturers – Dual/Triple/Quad/Hex/Octal-Enhanced DS3/E3 Framer

CX28342/3/4/6/8
Dual/Triple/Quad/Hex/Octal-Enhanced
Distinguishing Features
DS3/E3 Framer
! Two, three, four, six, eight independent T3/
The CX28342/3/4/6/8 provides Dual, Triple, Quad, Hex, and Octal DS3/E3 ^{E3 framers in one package}
framers designed to support DS3-M13, DS3-C-bit parity, E3-G.751, and
E3-G.832 transmission formats.
! Line coding supported:
" T3-B3ZS, NRZ, AMI
" E3-HDB3, NRZ, AMI
The CX28342/3/4/6/8 provides framing recovery for M13, M23, C-bit _{! Framing supported:}
parity, G.751, and G.832 formatted signals. A FIFO buffer in the receive
" T3-M13, M23, C-bit parity
path can be enabled to reduce jitter on the incoming data. The CX28342/ " E3-G.751, G.832
3/4/6/8 devices allow for ease of configuration, while providing
! Inserts and extracts overhead bits
maximum flexibility to support the transmission and recovery of industry ! Full FEAC and TDL channels support
standard formats. It provides a flexible overhead bit generation method in ! Full Performance Monitoring support per
DS3/E3 modes to source overhead bits on an individual framer.
T1.231
! Integrated Dejitter FIFO
NOTE:
The index letter i, appearing in a register’s name, represents the
channel number, one per channel.
! Glueless interfaces to the following
processors:
" Intel: 8051, 8151, 8031, 8751, 8x251
" Motorola: 68000, 68020, 68030, 68302
! An asynchronous processor interface
Functional Block Diagram
VCO
RXCKI
! LIU Interfaces:
" Glueless interface to Conexant’s DS3/E3
LIU (CX2832/3)
" Option for a definition of LIU’s clocks
polarity-sampling edge
RXPOS
RXDAT
RXNEG
RXMSY
LINECK
RXGAPCK
TXPOS
REXTCK
TXNEG
Channel 1
TXDATI
TCLKO
Framer
TXCKI
(Typical All Channels) _TEXT
TEXTCK
TXSY
TXGAPCK
! Power Supplies and Power Consumption
" I/O 3.3 V, input 5 V-tolerant, core 2.5 V
" Requires 3.3 V and 2.5 V power
supplies. Optional 5 V supply required
for 5 V input tolerance
" Low power operation (<200 mW per
port)
Applications
Channel 2
Framer
Channel 3
Framer
ONESEC
MOTO
AD
A
ALE
RD
WR
CS
DTACK
INTR
! Digital Cross-Connect Systems
! Digital PCM Switches
! Access Concentrators
! CSUs
! ATM Switches
! Concentrators
! PBXs
! Routers
! Test Equipment
Testing
! JTAG boundary scan support
Channel 4
Framer
28348-DSH-001-B
Mindspeed Technologies™
February
2003