CY14NVSRAMKIT-001 nvSRAM Development Kit User Guide, Doc. # 002-03522 Rev. *A
62
A.6.3
Jumper Setting Table - SK-FM4-U120-9B560 FM4 MCU Evaluation Board
Table A-1. FM4 MCU Evaluation Board
Jumper
No of
Pins
Jumper Function
SK-FM4-U120-9B560 Board
(Default setting marked bold)
J1
2
CMSIS-DAP Crystal (P22) (Do not
change!)
Open: 4MHz
Closed: 48MHz
J2
2
VBUS detection of CMSIS-DAP
Open: 3V3
Closed: 5V (only for SK-FM4-U120-9B560)
J3
2
CMSIS-DAP reset
Open: CMSIS-DAP normal operation
Closed: CMSIS-DAP reset assert
J4
2
Operation of MD1 (CMSIS-DAP)
Open: Run-Mode
Closed: Test-Mode
J5
2
Operation of MD0 (CMSIS-DAP)
Open: Run-Mode (CMSIS-DAP)
Closed: Firmware update of CMSIS-DAP
J6
2
Power Supply Source
Select only one power source!
J9: USB Host powered (CN4)
J8: JTAG powered (CN2)
J7: CMSIS-DAP powered (CN3)
J6: Powered by SK-FM4-U-PERIPHERAL (J16)
J7
2
J8
2
J9
2
J10
2
SW3 NMI Jumper J10 needs to be
opened for programming
Open: Button SW3 disconnected / Programming
mode
Closed: Button SW3 (NMI) is connected
J11
2
USB D+
Open: USB is disconnected
Closed: USB is connected
J12
2
USB D–
Open: USB is disconnected
Closed: USB is connected
J13
2
VBUS detection
Open: 3V3
Closed: 5V (only for SK-FM4-U120-9B560)
J14
3
USB VBUS detection See also J10
1-2: VBUS is connected to INT03_2 (Run-
Mode)
2-3: VBUS is connected to NMIX (Programming
Mode)
J15
3
MCU voltage selection SK-FM4-U120-
9B560
1-2: MCU is powered from 3V3
2-3: MCU is powered from 5V
J16
2
Can be powered by peripheral base-
board
See note in J6-J9 setting
J17
2
Operation of MD1
(Do not change!)
Open: Run-Mode and Programming-Mode
Closed: Test-Mode
J18
2
Operation of MD0
Open: Run-Mode
Closed: Programming-Mode
J19
2
CMSIS-DAP
Virtual COM port (SIN0_0)
Open: SIN0 is disconnected from CMSIS-DAP
Closed: CMSIS-DAP’s virtual COM port is
connect
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