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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chuang, S.C.-M. Mukherjee, T. Braceras, G. Litten, S. Peters, M. LeBlanc, J. Taroni, G. Akrout, C. |
| Copyright Year | 1990 |
| Abstract | A CMOS VLSI cache memory subsystem, which includes a 72 K cache memory, a 11 K tag memory, a 1.3 K state array, two special buffers, and cache control logic, has been developed and integrated on an experimental microprocessor chip. The unique one-port cache incorporates a reload buffer and a store back buffer to function as a two-port cache, one port for CPU read/write and the other port to the system bus for simultaneous cache reload. The one-port tag also bears pseudo-two-port characteristics by using a cycle-split scheme to access the tag twice in a cache cycle. This allows the tag memory to be used for bus snooping as well as normal cache operation without using the conventional dual-port tag approach to maintain cache data coherency. A unique cache reload mechanism which utilizes the cache read-modify-write cycle is incorporated to maintain data coherency in the reload buffer and store back buffer. This is essential for enhancing snoopy cache performance with pseudo-two-port capability |
| Starting Page | 113 |
| Ending Page | 114 |
| File Size | 340384 |
| Page Count | 2 |
| File Format | |
| DOI | 10.1109/VLSIC.1990.111121 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1990-06-07 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Content Type | Text |
| Resource Type | Article |
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