DS2156L+ Maxim Integrated Products, DS2156L+ Datasheet - Page 10
![IC TXRX T1/E1/J1 1-CHIP 100-LQFP](/photos/6/82/68291/406-100-lqfp_sml.jpg)
DS2156L+
Manufacturer Part Number
DS2156L+
Description
IC TXRX T1/E1/J1 1-CHIP 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2156L.pdf
(265 pages)
Specifications of DS2156L+
Function
Single-Chip Transceiver
Interface
E1, J1, T1, TDM, UTOPIA II
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Includes
BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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TDM Bus
UTOPIA Bus
RCL, RLOS, RRA, and RAIS alarms interrupt on
change-of-state
Flexible signaling support
–
–
–
Addition of hardware pins to indicate carrier loss
and signaling freeze
Automatic RAI generation to ETS 300 011
specifications
Access to Sa and Si bits
Option to extend carrier loss criteria to a 1ms
period as per ETS 300 233
Japanese J1 support
–
–
Dual two-frame independent receive and transmit
elastic stores
–
–
–
16.384MHz maximum backplane burst rate
Supports T1 to CEPT (E1) conversion
Programmable output clocks for fractional T1, E1,
H0, and H12 applications
Interleaving PCM bus operation
Hardware signaling capability
–
–
–
Ability to pass the T1 F-bit position through the
elastic stores in the 2.048MHz backplane mode
Access to the data streams in between the
framer/formatter and the elastic stores
User-selectable synthesized clock output
Supports fractional T1/E1 and arbitrary bit rates in
multiples of 64kbps (DS0/TS) up to 2.048Mbps
Supports clear E1
Compliant to the ATM forum specifications for
ATM over DS1 and E1, respectively
Standard UTOPIA-II interface to the ATM layer
Configurable UTOPIA address
Supports diagnostic loopback
Optional payload scrambling in transmit direction
and descrambling in receive direction as per the
ITU I.432 for the cell-based physical layer
Software or hardware based
Interrupt generated on change of signaling data
Receive signaling freeze on loss-of-sync,
carrier loss, or frame slip
Ability to calculate and check CRC6 according
to the Japanese standard
Ability to generate Yellow Alarm according to
the Japanese standard
Independent control and clocking
Controlled slip capability with status
Minimum delay mode supported
Receive signaling reinsertion to a backplane
multiframe sync
Availability of signaling in a separate PCM
data stream
Signaling freezing
10 of 265
HDLC Controllers
Test and Diagnostics
Optional HEC insertion in transmit direction with
programmable COSET polynomial addition
Option of using either idle or unassigned cells for
cell-rate decoupling in transmit direction
1-Byte programmable pattern for payload of cells
used for cell-rate decoupling
Transmit FIFO depth configurable to either 2, 3, 4
cell deep, which provides control over cell latency
Transmit FIFO depth indication for 2-cell space
Optional single-bit HEC error insertion
HEC-based cell delineation
Optional single-bit HEC error correction in the
receive direction
Optional filtering of HEC errored cells received
Optional receive idle/unassigned cell filtering
Programmable loss-of-cell delineation (LCD)
integration and optional interrupt
Interrupt for FIFO overrun in receive direction
Saturating counts for:
–
–
Optional internally generated clock (system clock
divided by 8) in diagnostic loopback mode
Two independent HDLC controllers
Fast load and unload features for FIFOs
SS7 support for FISU transmit and receive
Independent 128-byte Rx and Tx buffers with
interrupt support
Access FDL, Sa, or single/multiple DS0 channels
DS0 access includes Nx64 or Nx56
Compatible with polled or interrupt driven
environments
Bit-oriented code (BOC) support
Programmable on-chip bit error-rate testing
Pseudorandom patterns including QRSS
User-defined repetitive patterns
Daly pattern
Error insertion single and continuous
Total bit and errored bit counts
Payload error insertion
Error insertion in the payload portion of the T1
frame in the transmit path
Errors can be inserted over the entire frame or
selected channels
Insertion options include continuous and absolute
number with selectable insertion rates
F-bit corruption for line testing
Number of error-free assigned cells received
and transmitted
Number of correctable and uncorrectable HEC-
errored cells received
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