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The µPD98413 is a quad 622Mbits/s SONET STS-12c / SDH STM-4c framer. The µPD98413 performs all functions
necessary to insert and extract ATM cells or POS (PPP over SONET) packets into and from SONET/SDH payload.
Applications include ATM/IP switches, Routers, and Access concentrators.
1.1
Features
General
•
Quad SONET STS-12c / SDH STM-4 (622Mbps) framing function in compliance with ITU-T G.707, ANSI
T1.105 and Bellcore GR-253-CORE
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Mapping ATM cell or Packet into SONET/SDH payload
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Generic 32-bit microprocessor interface for device control and status monitoring
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32-bit 104MHz LVTTL interface to be connected with ATM device (UTOPIA level3) or POS device (POS-PHY
level3)
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Four serial 622MHz PECL line interface
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Integrated SERDES, Clock data recovery and Clock synthesis
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Provides loopback functions (line and equipment loopback)
•
1024-byte FIFO for each transmit and receive FIFO
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Provides IEEE 1149.1 JTAG testing
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Industrial temperature range (-40 to 85)
•
576 BGA package and 2.5V power supply
SONET
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Detects LOS, OOF, LOF, Line AIS, Line RDI, LOP, Path AIS, Path RDI (Enhanced and One-bit), Path PLM
and Path UNEQ
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Inserts, detects and counts B1, B2, B3, Line REI and Path REI
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Detects signal fail (SF) and signal degrade (SD) conditions
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Provides buffers to transmit and receive the 16 or 64 bytes section trace (J0) and path trace (J1) message,
also detects Section TIM and Path TIM
•
Provides insertion and extraction registers for APS (K1, K2) byte, also detects PSBF
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Generates and interprets payload pointer
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Inserts and extracts registers of overhead bytes, ex. C2 byte
•
Inserts and extracts Section and Line DCCs by serial interface
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Inserts and extracts whole overhead bytes by dedicated interface
CHAPTER 1 GENERAL
CHAPTER 1 GENERAL
PRELIMINARY
NEC confidential and Proprietary
9
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