ThemicroSPARC (code-namedTsunami ) is a discontinuedmicroprocessor implementing theSPARC V8 instruction set architecture (ISA), developed bySun Microsystems . It is a low-end microprocessor intended for low-endworkstations andembedded systems . The microprocessor was developed by Sun, but thefloating-point unit (FPU) was licensed from Meiko Scientific . It contains 800,000 transistors. It was used in theSPARCclassic andSPARCstation LX among others.
There are two variants of themicroSPARC-II (code-namedSwift ): the microSPARC-II and microSPARC-IIep. The microSPARC-II is used in theSPARCstation 5 . The microSPARC-IIep is a 100 MHz microSPARC-II with an integratedPCI controller forembedded systems . It was developed and fabricated byLSI Logic for Sun, and used in theirJavaStation Network Computer .
Name (codename) Model Frequency (MHz) Arch. version Year Total threads[ 1] Process (μm) Transistors (millions) Die size (mm²) IO Pins Power (W) Voltage (V) L1 Dcache (k) L1 Icache (k) L2 Cache (k) L3 Cache (k) microSPARC I (Tsunami) TI TMS390S10 / TMX390S10 40–50 V8 1992 1×1=1 0.8 0.8 225? 288 2.5 5 2 4 none none microSPARC II (Swift) Fujitsu MB86904 / Sun STP1012 60–125 V8 1994 1×1=1 0.5 2.3 233 321 5 3.3 8 16 none none
Die photos TI microSPARC I
Sun microSPARC II
^ Threads per core × number of cores Sun Microsystems, Inc. (10 August 1992). "Highly Integrated SPARC Processor Implementation (Tsunami)". Hot Chips presentation.'
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