AR-B1479 User’s Guide
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2. SYSTEM CONTROLLER
This chapter describes the main structure of the AR-B1479 CPU board. The following topics are covered:
l Powerful x86 Processor
l 64-Bit SDRAM UMA Controller
l CRT Controller
l 2D Graphics Engine
l Interrupt Controller
l DMA Controller
l Timer/Counters
l IDE Controller
l Optional 16-Bit Local Bus Interface
l ISA Master/Slave
l PCI Master/Slave/Arbiter
2.1 POWERFUL X86 PROCESSOR
The AR-B1479 uses the Consumer II/Elite PC-133 BGA, it is an advanced 64-bit x86 processor block compatible
processor offering high performance, fully accelerated 2D graphics, a 64-synchronous DRAM controller, all on a
single chip. It includes a 64-bit SDRAM controller, a high speed PCI local-bus controller and Industry standard PC
chip set functions (Interrupt controller, DMA Controller, Interval timer and ISA BUS).
l Fully static 32-bit five-stage pipeline, x86 processor fully PC compatible.
l Can access up to 4 GB of external memory.
l 8 Kbyte unified instruction and data cache with write back and write through capability.
l Parallel processing integral floating-point unit, with automatic power down.
l Runs up to100 MHz (x1) or 133 MHz (x2).
l Fully static design for dynamic clock control.
l Low power and system management modes.
l Optimized design for 2.5 V operations.
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