IDT77V500 Integrated Device Technology, Inc., IDT77V500 Datasheet

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IDT77V500

Manufacturer Part Number
IDT77V500
Description
SwitchStar ATM Cell Based 1.2Gbps non-blocking Integrated Switch Controller
Manufacturer
Integrated Device Technology, Inc.
Datasheet

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©1999 Integrated Device Technology, Inc.
for a 1.24Gbps 8 x 8 port non-blocking switch
available for each output port of the switch
service classes
CLP, and EPD functionality
multiple IDT77V500 configurations
Single chip controller for IDT77V400 Switching Memory
One IDT77V500 and one IDT77V400 form the core required
Supports up to 8192 Virtual Connections (VCs)
Per VC queuing for fairness, with four priorities per VC
Capable of supporting CBR, VBR, UBR, and ABR (EFCI)
Low power dissipation
–430mW (typ.)
Optional header modification operation
Multicasting and Broadcasting capability
Provides congestion management support through EFCI,
System clock cycle times as fast as 27ns (37MHz)
Option available for resolving contention issues between
or IDT79RV4640)
IDT79RV3041,
8-bit Processor/
IDT79R36100,
External Interface
(for example,
for Global Setup
IDT77V550
Call Setup
and Control
Manager
IDT77155
IDT77155
155Mbps
155Mbps
/
PHY
PHY
Control
Data
SWITCHStAR
ATM CELL BASED
1.24Gbps NON-BLOCKING
INTEGRATED SWITCH CONTROLLER
Port 0
Port 7
Data
IDT77V500
Controller
IDT77V400
Switch
Switching
6.06
Memory
1
with the IDT77V400 Switching Memory, forms the core control logic
and switch fabric for a 1.24Gbps non-blocking ATM switch. The
IDT77V500 manages all of the switch traffic moving through the
IDT77V400, commanding the storage of incoming ATM cells and
interpreting and modifying the cell header information as necessary
for data flow through the switch. It then uses the header information,
including priority indicators, to queue and direct the individual cells for
transmission out the appropriate output port of the IDT77V400.
keep track of each call, and has the capacity to keep track of as many
TM
without derating for larger switch configurations
One IDT77V500 can manage up to eight IDT77V400's
Industrial temperature range (-40° C to +85° C) is available
Single +3.3V ± 300mV power supply
Available in a 100-pin Thin Plastic Quad Flat Pack (TQFP)
The IDT77V500 ATM Cell Based Switch Controller, when paired
The IDT77V500 utilizes Per Virtual Connection (VC) Queuing to
Control
Port 0
Port 7
IDT77155
IDT77155
155Mbps
155Mbps
PHY
PHY
3607 drw 01
PRELIMINARY
IDT77V500
DSC 3607/3

Related parts for IDT77V500

IDT77V500 Summary of contents

Page 1

... IDT77V400 Switching Memory, forms the core control logic and switch fabric for a 1.24Gbps non-blocking ATM switch. The IDT77V500 manages all of the switch traffic moving through the IDT77V400, commanding the storage of incoming ATM cells and interpreting and modifying the cell header information as necessary for data flow through the switch ...

Page 2

... Outputs are always enabled (active). processed by the Call Setup Manager. The new Virtual Connection (VC) is then established in the Queue Manager of the IDT77V500, with all operations executed across the 8-bit Manager Bus. Subse- quent cells of that particular VC are then prioritized and directed by the Switch Controller as they are received by the IDT77V400 ...

Page 3

... All V pins must be connected to ground supply Package body is approximately 14mm x 14mm x 1.4mm. 4. This package code is used to reference the package diagram. 5. This text does not indicate orientation of the actual part marking. Industrial and Commercial Temperature Range IDT77V500PF (4) PN100-1 100-Pin TQFP (5) Top View 3 6 ...

Page 4

... IDT77V500 SWITCHStAR Switch Controller 6.42 Preliminary Industrial and Commercial Temperature Range ...

Page 5

... IDT77V500 SWITCHStAR Switch Controller NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability ...

Page 6

... IDT77V500 SWITCHStAR Switch Controller NOTE: 1. For MDATA, IOD, and OFRM pins only. NOTE SCLK is cycling at maximum frequency and all inputs are cycling at 1/t max using AC input levels of V CYC1 DATA OUT . 435 Figure 1. AC Output Test Load 6 6.42 Preliminary Industrial and Commercial Temperature Range to 3 ...

Page 7

... IDT77V500 SWITCHStAR Switch Controller NOTES: 1. RESETI must be held High for 8 SCLK cycles. After RESETI transitions Low 8191 cycles are required before the Status Acknowledge bits will indicate that the internal reset process in complete. 2. Transition is measured +/-200mV from Low or High impedance voltage with the Output Test Load (Figure 2). ...

Page 8

... R NOTES: 1. CMD bus commands not defined in this table are undefined and are not implemented by the IDT77V500. 2. "x" represents the specific ISAM or OSAM being accessed (IP0-IP7 or OP0-OP7 respectively). 3. "n" represents the appropriate bit of the binary representation of the ISAM or OSAM being accessed (000 to 111). ...

Page 9

... IDT77V500 SWITCHStAR Switch Controller SCLK t OFP OFRM (1) OFRM/CBUS SFRM NOTE: 1. OFRM1-7 become CBUS1-7 (Outputs) during cell bus operations to arbitrate between multiple IDT77V500' NOTE: 1. Manager Command codes not defined in this table are not to be used. t CDOF t CDS 6.42 Industrial and Commercial Temperature Range ...

Page 10

... IDT77V500 SWITCHStAR Switch Controller Industrial and Commercial Temperature Range 10 6.42 Preliminary ...

Page 11

... CBRCLK3 and CBRCLK2, are available and associated with Output Priority 3 (Highest Priority) and Priority 2 respectively. Calls assigned to a particular CBR VC in the IDT77V500 Per VC Table are linked together in a CBR Per VC list by output, so that a cell from each particular CBR Per VC list are serviced on each cycle through the list. The CBR Per VC List is identified by both the output and CBR priority on that output ...

Page 12

CBRCLKx NOTES: 1. "x" for this waveform represents either depending on which CBRCLK is used (CBRCLK2 or CBRCLK3). SCLK (2) CBRCLKx 100 200 NOTES: 1. This example shows the procedure recommended for use of direct CBR scheduling. ...

Page 13

... IDT77V500 SWITCHStAR Switch Controller Industrial and Commercial Temperature Range 13 6.42 Preliminary ...

Page 14

... IDT77V500 SWITCHStAR Switch Controller IDT XXXXX A 99 Device Power Speed Package Type "PRELIMINARY" datasheets contain descriptions for products that are in early release. 3/1/99: Updated to new format. Added Industrial Specifications. Added S25 Speed Grade. Pg. 3 Package Diagram noes added for clarification. Pg. 4 Pin description table descriptions corrected. OFRM and Vss pin number corrections made. ...

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