PM4354-1 Datasheet, PDF (1/2 Pages) PMC-Sierra, Inc – Four Channel Combined E1/T1/J1 Transceiver/Framer

PM4354
COMET-QUAD
Four Channel Combined E1/T1/J1 Transceiver/Framer
FEATURES
• Monolithic device that integrates four
T1/E1 framers and line interfaces for
shorthaul and longhaul applications.
• Software selectable between T1/J1
and E1 operation on a per device
basis.
• Provides digitally programmable
longhaul and shorthaul pulse
templates and line build out.
• Meets or exceeds T1/J1 and E1
shorthaul and longhaul network access
specifications including ANSI T1.102,
T1.403, T1.408, AT&T TR 62411, ITU-
T G.703, G.704 as well as ETSI 300-
011, CTR-4, CTR-12 and CTR-13.
• Provides encoding and decoding of
B8ZS, HDB3 and AMI line codes.
• Provides receive equalization, clock
recovery and line performance
monitoring.
• Provides transmit and receive jitter
attenuation.
• Provides four full-featured HDLC
controllers, each with 128-byte
transmit and receive FIFO buffers.
• Provides a two-frame payload slip
buffer to allow independent backplane
and line timing.
• Automatically generates and transmits
DS-1 performance report messages to
ANSI T1.231 and ANSI T1.408
specifications.
• Provides PRBS generators and
detectors on each tributary for error
testing at DS1, E1 and N x 64 Kbit/s
rates as recommended in ITU-T O.151
and O.152.
• Provides an 8-bit microprocessor bus
interface for configuration, control, and
status monitoring.
• Uses line rate system clock.
• Provides an IEEE P1149.1 (JTAG)
compliant test access port (TAP) and
controller for boundary scan test.
• Implemented in a low power 2.5/3.3 V
CMOS technology.
• Available in a high density 208-pin fine
pitch PBGA (17 mm by 17 mm)
package.
• Provides a -40 °C to +85 °C industrial
temperature operating range.
RECEIVER
• Typical signal recovery of up to -43 dB
at 1024 kHz (E1) and up to -44 dB at
772 kHz (T1/J1).
• Guaranteed minimum signal recovery
of -32 dB at 1024 kHz (E1) and
-36 dB at 772 kHz (T1/J1) using
PIC-22 gauge cable emulation.
• Frames to DSX/DS-1 signals in SF,
and ESF formats.
• Frames to ITU-T G.704 basic and
CRC-4 multiframe formatted E1
signals. The framing procedures are
consistent with ITU-T G.706
specifications.
• Frames to TTC JT-G704 multiframe
formatted J1 signals. Supports the
alternate CRC-6 calculation for
Japanese applications. Frames in the
presence of and detects the Japanese
yellow alarm.
• Tolerates more than 0.4 UI peak-to-
peak, high frequency jitter as required
by AT&T TR 62411 and Bellcore TR-
TSY-000170.
• Provides programmable in-band
loopback activate and deactivate code
detection.
BLOCK DIAGRAM
TxTIP1[1:4]
TxTIP2[1:4]
TxRING1[1:4]
TxRING2[1:4]
TxCM[1:4]
XCLK
CTCLK
RSYNC
XLPG
Transmit LIU
TDO
TDI
TCK
TMS
TRSTB
JTAG
Test Access
Port
TJAT
Digital Jitter
Attenuator
CSD
Clock
Synthesis and
Distribution
TOPS
Timing
Options
XIBC
Inband
Loopback
Code
Generator
XPDE
Pulse
Density
Enforcer
T1-XBAS/E1-TRAN
Basic Transmitter,
Frame Generation,
Alarm Insertion,
Signaling Insertion,
Trunk Conditioning
Tx-ELST
Transmit
Elastic
Store
TPSC
Per-DS0
Controller
TDPR
HDLC
Transmitter
XBOC
Bit Oriented
Code Dector
PMON
Performance
Monitor
Counters
T1-APRM
Auto
Performance
Response
Monitor
RDLC
HDLC
Receiver
ALMI
Alarm
Integrator
RBOC
Bit Oriented
Code Dector
PRBS
Pattern
Generator/
Detector
RxTIP[1:4]
RxRING[1:4]
RVREF[1:4]
RLPS
Receive LIU
CDRC
Clock and
Data
Recovery
RJAT
Digital Jitter
Attenuator
One of Four
T1/J1 or E1
Transceiver/Framers
IBCD
Inband
Loopback Code
Detector
T1/E1-FRMR
Frame Align-
ment, Alarm
Extraction
SIGX
Signalling
Extractor
PDVD
Pulse Density
Violation
Detector
FRAM
Framer RAM
Rx-ELST
Receive
Elastic Store
RPSC
Per-DS0
Controller
PMC-2000091 (r3)
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
BTIF
Backplane
Transmit
System
Interface
MPIF
Micro-
processor
Interface
BTCLK[1:4]
BTSIG[1:4]
BTFP[1:4]
BTPCM[1]/CASBTD
BTPCM[2:4]
CCSBTD
MVBTD
A[10:0]
RDB
WRB
CSB
ALE
INTB
RSTB
D[7:0]
PIO
CMV8MCLK
CMVFPC
CMVFPB
BRIF
Backplane
Receive
System
Interface
BRCLK[1:4]
BRSIG[1:4]
BRFP[1:4]
BRPCM[1]/CASBRD
BRPCM[2:4]
CCSBRD/
MVBRD
© Copyright PMC-Sierra, Inc. 2001