IDT77V500 Integrated Device Technology, Inc., IDT77V500 Datasheet
IDT77V500
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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 ...
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... 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 ...
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... 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 ...
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... IDT77V500 SWITCHStAR Switch Controller 6.42 Preliminary Industrial and Commercial Temperature Range ...
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... 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 ...
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... 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 ...
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... 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). ...
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... 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). ...
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... 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 ...
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... IDT77V500 SWITCHStAR Switch Controller Industrial and Commercial Temperature Range 10 6.42 Preliminary ...
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... 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 ...
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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. ...
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... IDT77V500 SWITCHStAR Switch Controller Industrial and Commercial Temperature Range 13 6.42 Preliminary ...
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... 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. ...