Alchemy Processor FAMILY
Alchemy
Au1000
A High-Performance/Low-Power MIPS® (SoC) 400MHz at .5 Watt
Overview
The RMI Alchemy™ Solutions Au1000™ processor provides a high-performance, low-power, high-integration System-on-a-Chip (SoC) targeting the Internet Edge device market. These devices include WAPs (Wireless Access Points), routers, gateways, printers, point of sale terminals, set top boxes, and Internet security products, such as firewalls and VPNs (Virtual Private Networking).
Product Description
The Au1000 processor delivers a complete SoC based on the MIPS32™ instruction set. Designed for optimal performance at very low power, the Au1000 processor is available up to 500MHz. Power dissipation measures less than half a watt for the 400MHz version. Highly integrated with on-chip memory controllers and Internet access peripherals, the Au1000 processor runs a variety of operating systems, including Windows® CE.NET, Linux, and VxWorks. Moreover, the integration of peripherals with RMI's unique, very high performance, MIPS-compatible core can provide lower system costs, smaller form factors, lower system power requirements, simpler designs at multiple performance points, and shorter design cycles. The Au1000 processor is available in both standard commercial temperature (0 - 70ºC) and industrial temperature (-40º - +85ºC) versions.
High-Speed MIPS CPU Core
- 266, 400 or 500MHz
- MIPS32 Instruction Set
- 32-bit Architecture
- 16KB Instruction and 16KB Data Caches
- High-speed Multiply-Accumulate (MAC) and Divide Unit
- 1.5-1.8V Core, 3.3V I/O
Highly-Integrated System Peripherals
- GPIO (32 total, 5 dedicated for system use)
- Two 10/100 Ethernet Controllers
- USB Device and Host
- Four UARTs
- IrDA Controller (SIR, MIR and FIR)
- AC-97 Controller
- I2S Controller
- Two SSI Controllers
High Bandwith Memory Buses
- 100/125MHz SDRAM Controller
- SRAM/Flash EPROM Controller
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Low Power Consumption
| Core MHz |
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Power(mW) |
| 266 |
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<300 |
| 400 |
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500 |
| 500 |
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900 |
- Power-saving Modes
- Pseudo-static Design to 0Hz
Package
Operating System Support
- Microsoft® Windows CE.NET
- Linux
- VxWorks
Development Tool Support
- MIPS32-compatible Tool Set
- Numerous Third-Party Compiler, Assemblers and Debuggers
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| Processor Diagram |
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Core Microarchitecture Highlights Pipeline
- Scalar 5-stage Pipeline
- Load/Store Adder in 1-stage
- Scalar Branch Techniques Optimized
- Pipelined Register File Access in Fetch Stage
- Zero Penalty Branch
Multiply-Accumulate (MAC) and Divide Unit
- Max Issue Rate of one 32x16 MAC per Clock
- Max Issues Rate of one 32x32 MAC per Every Other Clock
- Operates in Parallel to CPU Pipeline
- Executes all Integer Multiply and Divide Instructions
- 32 x 16-Bit MAC hardware
MMU
- Instruction and Data Watch Registers for Software Breakpoints
- Separate Interrupt Exception Vector
- TLB
- 32 Dual-entry Fully Associative
- Variable Page Sizes 4KB -16MB
- 4-entry ITB
EJTAG Support
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Caches
- 16KB Non-Blocking Data Cache
- 16KB Instruction Cache
- Instruction/Data Caches are 4-way Set Associative
- Write-Back with Read Allocate
- Cache management Features
- Programmable Allocation Policy
- Line Locking
- Prefetch Instructions (instructions and data)
- High-speed Access to On-chip Buses
Low Power Consumption
| Core MHz |
Core Voltage |
Power(mW) |
| 266 |
1.5 |
<300 |
| 400 |
1.5 |
500 |
| 500 |
1.8 |
900 |
Ordering Information
| Valid Combinations |
Au1000™-266
Au1000-400
Au1000-500 |
MC |
C |
| Au1000-266 |
MC |
I |
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To view product briefs for the RMI Alchemy™ Au1000™ processor and associated development tools, please click on the links at the top of this page.
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