
PMC-Sierra,Inc.
PM5357
S/UNI-622-POS
622 Mbit/s ATM and Packet Over SONET Physical Layer Device
FEATURES
GENERAL
• ATM and Packet over SONET/SDH
(POS) OC-12c (622 Mbit/s) PHY
• Provides on-chip clock and data
recovery and clock synthe s is
• Exceeds Bellcore-GR-253 jitter
requirements
• Inserts and extracts ATM cells or POS
packets into/from SONET SPE
• Filters and captures Automatic
Protection Switch bytes (K1,K2) and
detects APS byte failure
• Detects signal degrade and signal
failure thresholds crossing alarms
• Captures and debounces
synchronization status byte (S1)
• Extracts and Inserts the 16 or 64-byte
section trace (J0) and path trace (J1)
messages
• Extracts and inserts section/line data
communication channels (DCC)
• Provides circuitry to meet holdover,
wander and long term stability
• Provides a generic 8-bit
microprocessor interface for device
control and register access
• Provides standard IEEE 1149.1 JTAG
test port for boundary scan
ATM
• Implements the ATM Forum User
Network Interface Specification
• Performs cell payload scrambling and
descrambling
• Provides a UTOPIA Level 2 and an 8bit 100MHz UTOPIA L evel 3 c ompl iant
system inter face
• Provides synchronous 4 cell transmit
and receive FIFO buffers
PACKET OVER SONET/SDH
• Supports direct packet map pin g into
SONET/SDH such as PPP, HDLC and
Frame Relay
• Implements the PPP over SONET/
SDH specification according to RFC
1619 and 1662 of the IETF
• Performs flag sequence detection and
insertion
• Performs CRC-CCITT and CRC-32
FCS generation and validation
• Performs byte stuffing and destuffing
• Checks for minimum and maximum
packet lengths
• Checks for packet abort sequence
•Performs X
43
+1 payload scrambling
• Provides a SATURN POS-PHY Level
2 and an 8-bit 100MHz POS-PHY
Level 3 system interface
• Provides synchronous 256 byte
transmit and receive FIFO buffers
PACKAGING
• Implemented in low power 3.3 Volt
CMOS technology
• Packaged in a 304SBGA
• Industrial temperature range (-40°C to
+85°C)
APPLICATIONS
• WAN and Edge ATM switches
• Multiprotocol switches
• Layer 3 sw itches
• Routers, Packet switches and Hubs
BLOCK DIAGRAM
TDREF1,TDREF0
TXD+/-
ATP[0]
PTCLK
POUT[7:0]
FPOUT
RBYP
PECLV
REFCLK+/-
RXD+/-
RRCLK+/-
SD
C1,C0
ATP[1]
PICLK
PIN[7:0]
FPIN
OOF
Line
Line
I/F
Tx
I/F
Rx
TFPI
TFPO
LIFSEL
Tx Section
O/H
Processor
Section
Trace Buffer
Rx Section
O/H
Processor
RFPO
RALARM
TCLK
Section/Line
DCC Extract
RCLK
RSDCLK
TSD
TSDCLK
Section/Line
DCC Insert
Tx Line O/H
Processor
Path Trace
Buffer
Rx Line O/H
Processor
RSD
RLD
RLDCLK
TLD
TLDCLK
Access Port
Tx Path O/H
Processor
WAN
Synch.
Rx Path O/H
Processor
Rx APS, Sync
Status, BERM
APSP[4:0]
TRSTB
TCK
TMS
JTAG Test
TDI
TDO
Microprocessor
Interfaces
ALE
A[8:0]
D[7:0]
Tx POS
Frame
Processor
Tx ATM Cell
Processor
Rx ATM Cell
Processor
Rx POS
Frame
Processor
CSB
RDB
WRB
SYSSEL
POS_ATMB
TFCLK
TENB
TCA/TPA
TSOC/TSOP
TPRTY
TDAT[15:0]
TMOD
TEOP
TERR
RFCLK
RENB
RCA/RPA
System Interface
Utopia ATM Level 2/3
POS-PHY ATM Level 2/3
INTB
RSTB
RSOC/RSOP
RPRTY
RDAT[15:0]
RMOD
REOP
RERR
RVAL
PMC-981280 (R2) 1999 PMC-Sierra, Inc. January, 1999

PM5357 S/UNI-622-POS
622 Mbit/s ATM and Packet Over SONET Physical Layer Device
TYPICAL APPLICATIONS
POS-PHY LEVEL 2 APPLICATION
POS-PHY Level 2
Interface
Link Layer Device
TFCLK
TENB
TPA
TSOP
TPRTY
TDAT[15:0]
RFCLK
RENB
RPA
RSOP
RPRTY
RDAT[15:0]
RMOD
PM5357
S/UNI-622-POS
TFCLK
TENB
TPA
TSOP
TPRTY
TDAT[15:0]
TMODTMOD
TEOPTEOP
TERRTERR
RFCLK
RENB
RPA
RSOP
RPRTY
RDAT[15:0]
RMOD
REOPREOP
RERRRERR
RVALRVAL
LIFSEL
RXD+/-
SD
TXD+/-
ATM_POS
SYSSEL
1
1
0
Optical
Transceiver
POS-PHY LEVEL 3 APPLICATION
Link Layer Device
TFCLK
TENB
TPA
TSOP
TPRTY
TDAT[7:0]
RFCLK
RENB
RVAL
RSOP
RPRTY
RDAT[7:0]
POS-PHY Level 3
Interface
PM5357
S/UNI-622-POS
TFCLK
TENB
TPA
TSOP
TPRTY
TDAT[7:0]
TMODTMOD
TEOPTEOP
TERRTERR
RFCLK
RENB
RVAL
RSOP
RPRTY
RDAT[7:0]
REOPREOP
RERRRERR
LIFSEL
RXD+/-
SD
TXD+/-
ATM_POS
SYSSEL
1
1
1
Optical
Transceiver
Head Office:
PMC-Sierra, Inc.
#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
All product documentation is available
on our web site at:
http://www.pmc-sierra.com
For corpo rate information,
send email to:
info@pmc-sierra.com
PMC-981280 (R2)
1999 PMC-Sierra, Inc.
January, 1999