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− | '''Godson 2''' is a family of {{arch|64}} [[MIPS]] performance desktop processors developed by the [[Institute of Computing Technology of the Chinese Academy of Sciences]] (ICT) in 2003. The Godson 2 processors are now developed by [[Loongson Technology]] (which was co-founded by ICT) and sold as low-power embedded and desktop processors. The Godson 2 is famous for being the first [[Chinese]] developed {{arch|64}} microprocessors. | + | '''Godson 2''' ('''龍芯2''') is a family of {{arch|64}} [[MIPS]] performance desktop processors developed by the [[Institute of Computing Technology of the Chinese Academy of Sciences]] (ICT) in 2003. The Godson 2 processors are now developed by [[Loongson Technology]] (which was co-founded by ICT) and sold as low-power embedded and desktop processors. The Godson 2 is famous for being the first [[Chinese]] developed {{arch|64}} microprocessors. |
== Overview == | == Overview == |
Revision as of 05:14, 12 March 2017
Godson 2 | |
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Godson 2 | |
Developer | Institute of Computing Technology of the Chinese Academy of Sciences, Loongson |
Manufacturer | STMicroelectronics |
Type | Microprocessors |
Introduction | 2003 (announced) 2003 (launch) |
Architecture | 64-bit MIPS processors |
ISA | MIPS64 |
µarch | GS464 |
Word size | 64 bit 8 octets
16 nibbles |
Process | 180 nm 0.18 μm , 90 nm1.8e-4 mm 0.09 μm , 65 nm9.0e-5 mm 0.065 μm , 40 nm6.5e-5 mm 0.04 μm
4.0e-5 mm |
Technology | CMOS |
Succession | |
← | → |
Godson 1 | Godson 3 |
Godson 2 (龍芯2) is a family of 64-bit MIPS performance desktop processors developed by the Institute of Computing Technology of the Chinese Academy of Sciences (ICT) in 2003. The Godson 2 processors are now developed by Loongson Technology (which was co-founded by ICT) and sold as low-power embedded and desktop processors. The Godson 2 is famous for being the first Chinese developed 64-bit microprocessors.
Overview
- Main article: GS464 µarch
The Godson 2 microprocessors are designed as a general purpose 64-bit that implements a MIPS64-like instruction set (Note that at the time ICT was not a MIPS licensee). Many improvements were done in Godson over its predecessor such as a wider pipeline capable of fetching and decoding four times as many instructions per cycle.
Initial Godson 2 models were fabricated on a 6-metal 0.18 µm process CMOS technology using automatic placing and routing. Later models enjoyed a series of process shrinks. The Godson 2 has integrated additional features over the years from just a CPU to an entire SoC incorporating a PCI/PCIX controller, memory controller, SPI/UART. Those processors utilized the a HyperTransport bus for the southbridge. Most recent models integrated much of the southbridge on-die as well including PCIe, SATA, and a USB controller as well as multimedia support (GPU, dual display, audio, and media decoders).
Godson 2 processors can be found in many low end laptops and embedded hardware manufactured by Lemote Technology.
designer | Institute of Computing Technology of the Chinese Academy of Sciences + and Loongson + |
first announced | 2003 + |
first launched | October 17, 2003 + |
full page name | loongson/godson 2 + |
instance of | microprocessor family + |
instruction set architecture | MIPS64 + |
main designer | Institute of Computing Technology of the Chinese Academy of Sciences + |
manufacturer | SMICS + and STMicroelectronics + |
microarchitecture | GS464 + |
name | Godson 2 + |
process | 180 nm (0.18 μm, 1.8e-4 mm) +, 90 nm (0.09 μm, 9.0e-5 mm) +, 65 nm (0.065 μm, 6.5e-5 mm) + and 130 nm (0.13 μm, 1.3e-4 mm) + |
technology | CMOS + |
word size | 64 bit (8 octets, 16 nibbles) + |