Key facts
- Brand
- Loongson
- Model
- Loongson 2F
- Category
- Other Electronics
- Documents
- 5
- Languages
- ZH
- Last added
- 2000-01-01
Start here
Loongson 2F CPU Owner's Manual
This manual covers the Loongson 2F processor architecture, including an overview of the CPU, instruction set, and operating modes. It describes the complete register set, TLB management, cache hierarchy, exception handling, floating‑point unit, and special instructions.
Additional sections detail the DDR2 SDRAM controller, integrated I/O controller, performance optimization tips, errata, and the revision history of the document. This manual is written in Chinese.
Loongson 2F specifications
| Core frequency | 1 GHz |
|---|---|
| Power consumption at 1 GHz | <5 W |
| DDR2 memory controller max frequency | 333 MHz |
| L1 instruction cache | 64 KB |
| L1 data cache | 64 KB |
| L2 cache | 512 KB |
| Process technology | 90 nm CMOS |
| Package type | HEFCBGA‑452 |
All Loongson 2F documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the core clock frequency of the Loongson 2F processor?
The core clock runs at 1 GHz and can be dynamically adjusted or disabled.
How much power does the Loongson 2F consume at 1 GHz?
At 1 GHz the processor consumes less than 5 W.
What version of the Loongson 2F CPU manual is this?
It is version 0.1, released in August 2007.
How is the cache organized in the Loongson 2F processor?
The processor includes multiple cache levels with defined parameters described in the cache section.
What is the revision date of the Loongson 2F CPU manual?
The manual was first released in August 2008, version 1.0.
Which instruction set architecture does the Loongson 2F CPU support?
It supports the MIPS64 ISA.