MK715x1EK1A Hardware Manual
2. Hardware specifications
FEXK715x1EK1A_HardManual-01
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2.6 Solder bridge
The evaluation kit has many solder bridges. Most solder bridges are used to disconnect components on the
board from GPIO ports. GPIO port with separated components can be used to interface with external circuits
connected to the connector. At shipment, all GPIO ports except for P0.00 and P0.01 are connected to the external
interface connector.
Fig. 2-11 : GPIO port separated from external interface connector
Solder Bridge
Default
Function
SB_P00
Open
Separate P0.00 from P00 in CNA5
SB_P01
Open
Separate P0.01 from P01 in CNA5
SB_XL1
Open
Separate P0.00 from 32.768kHz-SPXO
SB_XL2
Open
Separate P0.01 from 32.768kHz-SPXO
SB_P09
Closed
Separate P0.09 from P09 in CNA5(using NFC)
SB_P10
Closed
Separate P0.10 from P10 in CNA5(using NFC)
SB_LED1
Closed
Separate P0.17 from LED1
SB_LED2
Closed
Separate P0.18 from LED2
SB_LED3
Closed
Separate P0.19 from LED3
SB_LED4
Closed
Separate P0.20 from LED4
SB_BTN1
Closed
Separate P0.13 from Btn1
SB_BTN2
Closed
Separate P0.14 from Btn2
SB_BTN3
Closed
Separate P0.15 from Btn3
SB_BTN4
Closed
Separate P0.16 from Btn4
SB_RESET
Closed
Separate P0.21 from RESET Button
SB_BMD
Closed
To enable JP_BMD for current measurement
SB_SHLD
Closed
To enable JP_SHLD for current measurement
SB_3V3
Open
To short the diode for 3.3V output protection from UART Interface IC
SB_BAT
Open
To short the CR2032 coin battery protection diode
SB_EXT
Open
To short the diode for external power supply protection
SB_P05
Closed
Separate P0.05 from UART Interface
SB_P06
Closed
Separate P0.06 from UART Interface
SB_P07
Closed
Separate P0.07 from UART Interface
SB_P08
Closed
Separate P0.08 from UART Interface
SB1
Closed
Separate UART Interface IC from IO power supply
SB2
Closed
Separate 3.3V output from UART Interface IC
SB_P22
Closed
Separate P0.22 from DIP-SW
SB_P23
Closed
Separate P0.23 from DIP-SW
SB_P26
Closed
Separate P0.26 from DIP-SW
SB_P27
Closed
Separate P0.27 from DIP-SW
Table. 2-5 : Solder bridge shipping condition
