77V550S25DTG8 IDT, Integrated Device Technology Inc, 77V550S25DTG8 Datasheet

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77V550S25DTG8

Manufacturer Part Number
77V550S25DTG8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet

Specifications of 77V550S25DTG8

Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
80
Lead Free Status / RoHS Status
Compliant
Features List
Features List
Description
Description
simple method of communication between an external workstation/
processor and the IDT77V500 Switch Controller. An In-Band signalling
technique is utilized to examine incoming ATM cells, determining if the
cell is a Command Cell for the Switch Controller, and loads the
command if appropriate. In the typical configuration (Figure 1), the
Block Diagram
Block Diagram
2000 Integrated Device Technology, Inc.
The IDT77V550 Switch Manager is a device developed to provide a
u
u
u
u
u
u
– Writing data to Switch Controller
– Reading data from Switch Controller
– Reset operations
Interprets switch command cells from external work station
and loads the command into the IDT77V500 Switch
Controller
Utilizes in-stream (in-band) signalling technique via the cell
stream into the Switching Memory
Can generate control cells to be sent back to the external
workstation
Executes three types of commands:
Single +3.3V ± 0.3V power supply
Industrial Temperature (-40°C to 85°C) is available.
Figure 1 IDT77V550 Application with IDT77V400 Switching Memory and IDT77V500 Switch Controller
Line Cards
SwitchStar
Switch Manager
DPI Receive
DPI Transmit
Switch Manager
DPI Receive
DPI Transmit
IDT77V550
TM
1 of 19
Control Bus
DPI Receive
DPI Transmit
IDT77V550 is located on the IDT77V400 port to receive both signalling
cells and standard traffic cells. The Switch Manager does not have to be
connected to a Switching Memory port if it is only receiving the signalling
cells.
directions, and can both interpret an incoming cell and generate control
cells as necessary. Figure 2 illustrates the basic block configuration of
the Switch Manager. The Data Path Interface (DPI) is used on both the
cell input and output ports of the IDT77V550. DPI is utilized on the
IDT77V400 to provide both reduced pin count per port and to offer
configuration flexibility.
commands in the system:
store information needed to execute the command (up to 32 bytes) in
internal memory and perform the command across the Switch Controller
Manager bus. Likewise, for a read operation the information is received
from the Switch Controller, stored internally by the IDT77V550, and then
The Switch Manager has two cell streams which flow in opposite
The IDT77V550 is capable of executing four basic types of
When writing information to the Switch Controller, the IDT77V550 will
u
u
u
u
Reading data from the Switch Controller
Resetting the switch components
Reading Switch Manager version information
Switch Controller
Switching Memory
Writing data to the Switch Controller
4523 drw 01
,
IDT77V550
June 22, 2001
DSC 5917

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77V550S25DTG8 Summary of contents

Page 1

Features List Features List Interprets switch command cells from external work station u and loads the command into the IDT77V500 Switch Controller Utilizes in-stream (in-band) signalling technique via the cell u stream into the Switching Memory Can generate control cells ...

Page 2

IDT77V550 transmitted to the external workstation via a generated cell. Please refer to the data sheet of the IDT77V500 Switch Controller and the SwitchStar User Manual for additional information on these commands. Additional information on DPI is available in Technical ...

Page 3

IDT77V550 Pin Configurations Pin Configurations INDEX SCLK RESETI 4 RESETP RESETP 1 RESETP 7 2 RESETP RESETP 10 4 RESETP 11 5 RESETP 12 6 ...

Page 4

IDT77V550 Pin Definitions Pin Definitions Pin Number 1 SCLK 4 RESETI 68 RESETO 69 RESETO 5 RESETP0 6 RESETP1 7 RESETP2 8 RESETP3 10 RESETP4 11 RESETP5 12 RESETP6 13 RESETP7 45 SWAD0 46 SWAD1 47 SWAD2 48 SWAD3 50 ...

Page 5

IDT77V550 Pin Number 20 ICLK 23 IPD0M 24 IPD1M 25 IPD2M 26 IPD3M 27 IFRMM 28 ICLKM 56 OPD0 57 OPD1 59 OPD2 60 OPD3 61 OFRM 62 OCLK 72 OPD0M 73 OPD1M 74 OPD2M 75 OPD3M 76 OFRMM 77 ...

Page 6

IDT77V550 Maximum Operating Temperature and Supply Voltage Maximum Operating Temperature and Supply Voltage Grade Commercial Industrial Note: 1.This is the parameter T 2.Industrial temperature: for specific speeds, packages and powers contact your sales office. Recommended DC Operations Conditions Recommended DC ...

Page 7

IDT77V550 Symbol Parameter I Operating Current CC Table 7 DC Electrical Characteristics over the Operating Temperature and Supply Voltage Range Note: 1. fmax SCLK, ICLK, and OCLK are cycling at their maximum frequency and all inputs are cycling ...

Page 8

IDT77V550 DPI Transmit Path DPI Transmit Path The DPI Transmit Path is used to transfer cells from the IDT77V400 Switching Memory or other DPI device to and through the IDT77V550 Switch Manager. It has 4-bit input data buses (OPD[3:0] and ...

Page 9

IDT77V550 Generic ATM Cell to DPI-4 Mapping Generic ATM Cell to DPI-4 Mapping DPI Nibble Count — — 104 105 Manager Bus Interface Manager Bus Interface The IDT77V550 ...

Page 10

IDT77V550 Manager writes and reads the data registers one at a time. On the first write or read register zero is chosen. With each subsequent write or read cycle successively higher numbered registers are selected. Figure 9 gives a typical ...

Page 11

IDT77V550 IDT77V500 Switch Controller Manager Bus Commands IDT77V500 Switch Controller Manager Bus Commands Command Note: 1.This table is provided as a reference of the available IDT77V500 Switch Controller commands. Additional information, including command parameters and register definition, is available in ...

Page 12

IDT77V550 Byte Bits 3 3-0 PTI, CLP 4 7-0 HEC 5 7-0 Command 6 7-0 Switch Controller command 7 7-0 Cell number 8 7-0 Data count 9-21 7-0 Data0 - Data12 Table 11 IDT77V500 Switch Controller Manager Bus Commands (Part ...

Page 13

IDT77V550 Command Field Format Command Field Format Bit Number Note: The command bit pattern is defined in the command field of Format Tables on pages 15-17. Null Command Null Command When transmitted ...

Page 14

IDT77V550 Write Data Command Write Data Command This command writes data to the Switch Controller. If bit 6 in the command field is set, the Switch Manager will first make sure the controller is ready by reading the status register ...

Page 15

IDT77V550 Reset Port Device Command Reset Port Device Command The Sub Command field indicates which port to reset. Each bit in the Sub Command field controls one reset line to the 8 line cards. This is an active HIGH filter ...

Page 16

IDT77V550 Reset Operations Reset Operations The Switch Manager controls all reset operations in the switch. It can either do a complete switch reset which includes all components can do a dedicated reset of a port or Switch Controller. ...

Page 17

IDT77V550 System Clock Timing Waveform System Clock Timing Waveform SCLK DPI Transmit Timing Waveform 1 DPI Transmit Timing Waveform 1 OCLK OFRM , OPD [0- DPI Transmit Timing Waveform 2 DPI Transmit Timing Waveform 2 OCLK OFRM, OPD[0-3] ...

Page 18

IDT77V550 DPI Receive Timing Waveform 2 DPI Receive Timing Waveform 2 ICLK IFRM , IPD [0- ICLK to ICLKM Propagation Delay Timing Waveform ICLK to ICLKM Propagation Delay Timing Waveform ICLK ICLK OCLK to OCLKM Propagation Delay Timing ...

Page 19

IDT77V550 Ordering Information Ordering Information IDT XXXXX A 999 Device Power Speed Type CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 SwichStar and the IDT logo are registered trademarks of Integrated Device Technology, Inc Package Process/ Temperature ...

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