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MicroBlaze Microcontroller Ref Des User Guide www.xilinx.com 2
UG133 January 7, 2005
Reference Design Building Blocks
R
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.
Application
Some applications for the MicroBlaze processor include:
• Industrial Controller
• Consumer Application
• Office Automation
• Data Communication
Figure Top x-ref 2-1
Figure 2-1: MicroBlaze Microcontroller Block Diagram
Reset
Interrupt
JTAG Ports
Clock
MicroBlaze
CPU
Core
Dual Ported
BlockRAM
(BRAM)
UART
4X
GPIO
JTAG_UART
xip312
ILMB DLMB
DOPB
AB
OPB