一个16 GB/s, 0.18 /spl mu/m的缓存块,用于集成L2缓存,从256 KB到2 MB

J.L. Miller, J. Conary, D. DiMarco
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引用次数: 6

摘要

为了实现英特尔(R) Pentium(R) III处理器系列0.18 /spl mu/m的片上二级缓存,开发了一个模块化的256 KB高级传输缓存块。缓存块从1到8次步进,形成从256 KB到2 MB的实现。每个块是一个独立的缓存,在1.0 GHz下每2个时钟周期提供32 B的线路。电荷共享数据感知技术使数据和标签阵列访问重叠,以减少低功耗下的延迟。模块化平铺缓存设计还通过分层电源管理实现了低功耗,并通过PBIST(可编程内置自检)缩短了测试时间。
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A 16 GB/s, 0.18 /spl mu/m cache tile for integrated L2 caches from 256 KB to 2 MB
A modular 256 KB advanced transfer cache tile has been developed to implement the on-die second level caches of the 0.18 /spl mu/m Intel(R) Pentium(R) III processor family. The cache tile is stepped from 1 to 8 times to form implementations from 256 KB to 2 MB. Each tile is a self-contained cache delivering a line of 32 B every 2 clock cycles at 1.0 GHz. A charge-share data sense technique overlaps the data and tag array accesses for reduced latency at lower power. Modular tiled cache design also achieves low power through hierarchical power management and reduced test time through PBIST (programmable built in self test).
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