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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ron Ho Gainsley, J. Drost, R. |
| Copyright Year | 2004 |
| Description | Author affiliation: Sun Microsystems Res. Labs., Mountain View, CA, USA (Ron Ho; Gainsley, J.; Drost, R.) |
| Abstract | As integrated circuit technologies get smaller, circuit and architectural trends make transmitting data across long on-chip wires increasingly important yet increasingly expensive in both latency and throughput. Inserting repeaters can reduce latency by breaking up long wires with gain stages but offers only limited throughput improvement, while breaking long wires with clocked latches improves latency and throughput but requires generating fast local clocks. In contrast, asynchronous handshaking over long wires can improve both latency and bandwidth with lower control overhead. We introduce simple latency models that relate best stage separation to technology parameters. In addition, the transactional nature of handshaking presents a fundamental limitation on throughput exacerbated by long wires. We present twin request/acknowledge control scheme that overcomes this throughput cost. |
| Sponsorship | IEEE Comput. Soc. Tech. Committee on VLSI Found. for Res. and Technol. - Hellas European Commission - ACiD-WG Fulcrum Microsystems Inc. Intel Philips Sun Microsystems Inc. Xilinx |
| Starting Page | 240 |
| Ending Page | 249 |
| File Size | 1414591 |
| Page Count | 10 |
| File Format | |
| ISBN | 0769521339 |
| ISSN | 15228681 |
| DOI | 10.1109/ASYNC.2004.1299307 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-04-19 |
| Publisher Place | Greece |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Wires Delay Throughput Repeaters Integrated circuit technology Clocks Costs Asynchronous circuits Latches Degradation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Engineering |
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