Xilinx UG133 manual Reference Design Building Blocks, Application

Reference Design Building Blocks

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MicroBlaze Microcontroller

Reference Design Number 1

Reference Design Building Blocks

The block diagram of the MicroBlaze Microcontroller used in this MicroBlaze Microcontroller Reference Design is shown in Figure 2-1. The design includes an Internal Block RAM memory, an RS232 UART, 4 GPIO blocks, and a JTAG_UART used for software debugging. This configuration utilizes approximately 50% of a Spartan-3™ XC3S200 device.

Clock	MicroBlaze	DOPB
	CPU		OPB
	Core
Reset
	ILMB	DLMB
Interrupt		UART	4X	JTAG_UART
			GPIO
JTAG Ports

AB

Dual Ported

BlockRAM

(BRAM)

xip312

Figure 2-1:MicroBlaze Microcontroller Block Diagram

Application

Some applications for the MicroBlaze processor include:

•Industrial Controller

•Consumer Application

•Office Automation

•Data Communication

MicroBlaze Microcontroller Ref Des User Guide www.xilinx.com 2

UG133 January 7, 2005