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NFS-CUNET (Discontinued Products)

■ Discontinued: December 28, 2022

MKY43 mounted
ARM-based microcontroller board

NFS-CUNET is a microcontroller board for CUnet evaluation which equips MKY43, a CUnet family IC.
Also, STM32F207 (ARM® Cortex®-M3 processor) by STMicroelectronics is mounted on the board and connected to MKY43 via FSMC bus (memory interface bus.)
StepTechnica's original debug monitoring software is implemented in internal flash memory of Cortex-M3 processor to use CUnet instantly with connecting to a PC. USB (High Speed USB) is equipped as an interface for PC.
This is bus-powered USB device.
You can rewrite your original program to internal flash ROM of Cortex-M3 processor via JTAG in order to perform the simulation same as real operation.

ARM®Cortex®-M3 are registered trademarks of ARM Limited in the EU and other countries.

Main specifications

Item Specifications
MCU STM32F207 (ST Microelectronics)
Clock Input clock frequency: 8 MHz
Operating clock frequency: 120 MHz
FSMC bus clock frequency: 120 MHz
Flash ROM 256 KB (STM32F207 internal ROM)
RAM 128 KB (STM32F207 internal RAM)
Programming to MCU JTAG
CUnet device MKY43 × 1 pc
Communication method Half-duplex
Communication rate 12/6/3 Mbps (Set by MKY43 register)
Interrupt factor MKY43 INT0 and INT1
Switch USER SW 8 bit × 2 pcs
LED POWER
USER LED
MON
MCARE
LCARE		 (Green)
(Red)
(Green)
(Red)
(Yellow)		 +5.0 V
4 pcs
MKY43
MKY43
MKY43		 Power supply

MON
MCARE
LCARE		  
Connector MicroUSB connector: For PC communication and power supply
CUnet communication connector: RJ45 type × 2 pcs
JTAG connector: Not pre-equipped
Expansion (GPIO) connector: Not pre-equipped
Power supply +5.0 V (Supplied from MicroUSB connector)
Size 80 mm × 100 mm
Weight 40.5 g
Operating conditions Temperature: 10℃ to 50℃
Humidity: 0% to 90% (With no condensation)
Consumption current +5.0 V ± 5% 400 mA or lower

Downloads (Documents)