PMC-920524 (R8)
1997 PMC-Sierra, Inc.. March, 1997
S/UNI-155 SATURN USER NETWORK INTERFACE
PM5345
Summary Information
FEATURES
Monolithic SATURNTM SONET/SDH
Asynchronous Transfer Mode User
Network LAN Interface.
Implements the ATM transmission
convergence (TC) sublayer for
Broadband ISDN according to ANSI
T1.646, ITU-T Recommendation
I.432 and ATM Forum document
"ATM User-Network Interface
Specification", Version 3.1.
Operates at 19.44 Mbytes/s,
processing a duplex 8-bit or 16-bit
data stream and mapping ATM cells
into a SONET STS-3c or SDH STM-1
compatible bit serial stream operating
at 155 Mbit/s.
Provides on-chip parallel-to-serial
and serial-to-parallel conversion
circuits and pseudo-ECL interfaces
operating at the155 Mbit/s line rate.
Provides 4 cell deep FIFO buffers in
both transmit and receive paths and
provides interface circuitry for
external FIFO expansion.
Expansion ports provides access to
all overhead to allow external
processing for full SONET/SDH
Network-Node Interface (NNI)
compliance.
Provides a generic 8-bit
microprocessor bus interface for
configuration, control and status
monitoring.
Provides a standard 5-signal
P1149.1 JTAG test port for boundary
scan board test purposes.
Provides TTL compatible inputs and
outputs and a pseudo-ECL
compatible serial line side interface.
Low power, +5 Volt CMOS
technology.
160 pin plastic quad flat pack (PQFP)
package.
APPLICATIONS
ATM LAN interfaces for computers,
workstations, switches and PCs
ATM public network switching system
interfaces
B-ISDN User-Network Interfaces
B-ISDN test equipment interfaces
Gigabit network interfaces
Tx ATM
4 Cell
FIFO
Rx ATM
4 Cell
FIFO
Drop
Side/
I/F
Line
Side
I/F
POUT[7:0]
POCLK
PIN[7:0]
PICLK
FPIN
OOF
TLAIS
Tx
Path
O/H
Processor
Rx
Path
O/H
Processor
TDAT[15:0]
TCA
TSOC
RDAT[15:0]
RCLK
RSOC
D[7:0]
A[7:0]
ALE
CSB
RDB
WRB
RSTB
INTB
Microprocessor
I/F
Transport
Overhead
Extract
Transport
Overhead
Insert
TTOH
RTOH
TTOHCLK
RTOHCLK
RPOH
TPOH
LOS
LOF
TPOHCLK
RPOHCLK
RTOHFP
TTOHFP
TPOHFP
Tx
Section
O/H
Processor
Tx
Line O/H
Processor
Rx
Section
O/H
Processor
Rx
Line O/H
Processor
TTOHEN
TPOHEN
RPOHFP
TWRB
TFERF
LAIS
FERF
TPAIS
TPYEL
LOP
PAIS
PYEL
TCLK
FPOUT
Tx ATM
Cell
Processor
Rx ATM
Cell
Processor
TFP
RCA
RRDB
TMS
TCK
TDI
TDO
TRSTB
JTAG Test
Access Port
TXD+/-
Par/
Ser
TXCI+/-
RXD+/-
Ser/
Par
RXC+/-
TXCO+/-
BUS8
TSER
RSER
GPIN
TSEN
Path
Overhead
Insert
Path
Overhead
Extract
FPOS
VT2
VT1
System Side
Line Side
BLOCK DIAGRAM
S/UNI-155 SATURN USER NETWORK INTERFACE
Summary Information
PM5345 S/UNI-155
PMC-920524 (R8)
1997
PMC-Sierra, Inc.
March, 1997
All product documentation is
available on our web site at:
http://www.pmc-sierra.com
For corporate information,
send email to:
info@pmc-sierra.com
S/UNI, SATURN and
UNI-PHYTM are trademarks
of PMC-Sierra, Inc. This
product contains patented
ATM cell delineation
technology under license
from Cisco Systems, Inc.
Head Office:
PMC-Sierra, Inc.
Suite 105 - 8555 Baxter Place
Burnaby, B.C. V5A 4V7
Canada
Tel: 604.415.6000
Fax: 604.415.6200
To order documentation,
send email to:
document@pmc-sierra.com
or contact the head office,
Attn:Document Coordinator
A1
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C1
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B1
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H2
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H3
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C2
H4
TRANSPORT OVERHEAD (SOH)
PATH OVERHEAD (POH)
RXD+/RXD-
RXC+/RXC-
MICRO BUS
FOR CONFIG,
STATUS
AND CONTROL
RECEIVE
ALARM DETECT
SIGNALS
OVERHEAD
EXTRACT
TRANSMIT
ALARM INSERT
SIGNALS
OVERHEAD
INSERT
TWRB
RDAT[15:0]
RSOC
RRDB
TDAT[15:0]
TSOC
TSD+/-
RSD+/-
O/E
E/O
ATM TERMINAL
PM5345 S/UNI
SATURN
USER NETWORK INTERFACE
Clock/Data
Recovery
Transmit
AAL
Processor
RCA
TCA
Receive
AAL
Processor
OVERHEAD BYTE USAGE:
TYPICAL APPLICATION: ATM TERMINAL
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