S/UNI-QUAD
DATASHEET
PMC-971239
ISSUE 6
PMC-Sierra, Inc.
PM5349 S/UNI-QUAD
SATURN USER NETWORK INTERFACE (155-QUAD)
1 FEATURES
1.1 General
• Single chip QUAD ATM User-Network Interface operating at 155.52 Mbit/s.
• Implements the ATM Forum User Network Interface Specification and the
ATM physical layer for Broadband ISDN according to CCITT
Recommendation I.432.
• Processes duplex 155.52 Mbit/s STS-3c (STM-1) data streams with on-chip
clock and data recovery and clock synthesis.
• Exceeds Bellcore GR-253-CORE jitter tolerance and intrinsic jitter criteria.
• Fully implements the ATM Forum’s Utopia Level 2 Specification with Multi-
PHY addressing and parity support.
• Provides a standard 5 signal IEEE 1149.1 JTAG test port for boundary scan
board test purposes.
• Provides a generic 8-bit microprocessor bus interface for configuration,
control, and status monitoring.
• Low power 3.3V CMOS with PECL and TTL compatible inputs and
CMOS/TTL outputs, with 5V tolerance inputs (system side interface is 3.3V
only).
• Industrial temperature range (-40°C to +85°C).
• 304 pin Super BGA package.
1.2 The SONET Receiver
• Provides a serial interface at 155.52 Mbit/s.
• Recovers the clock and data.
• Frames to and de-scrambles the recovered stream.
• Detects signal degrade (SD) and signal fail (SF) threshold crossing alarms
based on received B2 errors.
Proprietary and Confidential to PMC-Sierra, Inc., and for its Customers’ Internal Use
1