PMC-Sierra PM5371 manual Tudx, Features, Applications, Block Diagram

PMC-Sierra,Inc.

VT/TU Cross-Connect Switch

PM5371

TUDX

FEATURES

•Monolithic, SONET/SDH, single-stage, non-blocking array of time switches for cross-connecting SONET Virtual Tributaries (VTs) or SDH Tributary UNITs (TUs).

•Provides non-blocking switching between two STS-3 (STM-1) byte- serial input streams and two STS-3 (STM-1) byte-serial output streams.

•Operates from a single 19.44 MHz clock.

•Provides parity checking on input data busses and parity generation on output data busses.

•Allows programmable idle code insertion on a per-VT or per-TU basis.

•Permits switching of any combination of SONET VT1.5, VT2, VT3, VT6, or STS-1 channels. Permits switching of any combination of SDH TU11, TU12, TU2, or TU3 channels.

•Operates in conjunction with the PM5362 TUPP-PLUS VT/TU Payload Processor/Performance Monitor, which aligns SONET VTs or SDH TUs so they can be switched by the TUDX.

•Cascadable in a systolic or bussed manner to allow larger switching arrays to be implemented.

•Provides control outputs that are programmable on a per-timeslot basis to facilitate construction of larger switching arrays.

•Provides a generic 8-bit microprocessor bus interface for configuration, control, and status monitoring.

•Low power, +5 V, CMOS technology. Device has TTL-compatible inputs and outputs.

•Available in a 160-pin Plastic Quad Flat Pack (PQFP) (28 by 28 mm) package.

APPLICATIONS

•SONET/SDH Broadband Cross- Connects

•SONET/SDH Add/Drop Multiplexers

•SONET/SDH Terminal Multiplexers

•SONET/SDH Test Equipment

BLOCK DIAGRAM

		SINL[8:0]	SINR[8:0]
			SOUTT[8:0]
		Switching	Switching
		Element	Element
DINT[8:0]	Input Bus	Time	Time
	Formatter	Switch	Switch
DINB[8:0]		Time	Time
SCLK
		Switch	Switch
PAGE
SOBEB
SFP			SOUTB[8:0]
OFSEB
IFP
OFP
MBEB
RSTB
CS1B
CS2B	Microprocessor
RDB
	Interface
WRB
ALE			Output Bus Formatter
A[4:0]
D[7:0]
INTB

ODEB AOBEB COUTL DOUTL[8:0] AOUTL[8:0] COUTR DOUTR[8:0] AOUTR[8:0]

PMC-920520 (R8) ©￿1998 PMC-Sierra, Inc. September, 1998