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Hardware Components
UG0209 User Guide Revision 7.1
12
4.3
SmartFusion Hard ARM Cortex-M3 Processor
The SmartFusion cSoC comes with a hard Cortex-M3 advanced processor-based MSS. The ARM
Cortex-M3 microcontroller is a low power processor that features low gate count, low predictable
interrupt latency, and low cost debug. It is intended for deeply embedded applications that require fast
interrupt response features. SmartFusion cSoCs use the R1P1 version of the Cortex-M3 processor core.
Some of the important subsystems are listed below:
•
Memory protection unit (MPU)
•
Single cycle multiplication and hardware divide
•
JTAG debug (4 wire), Serial Wire Debug (SWD – 2 wire), and Serial Wire Viewer (SWV) interfaces
The Evaluation board is populated with components to enable development using the MSS. These
components include SPI flash and communication interfaces such as Ethernet and USB-to-UART.
4.4
Power Sources
4.4.1
SmartFusion Power Sources
The Evaluation Kit board is powered through USB. The USB power will supply power to three voltage
rails: 3.3 V, 1.5 V, and 10 V.
•
Microsemi NX4108 (1 A), supplies 3.3 V and 1.5 V rails
The USB can provide a maximum current of 500 mA. If the application requires a daughter board, you
must use an independent power supply source.