SIM3C1XX-B-DK Silicon_Laboratories, SIM3C1XX-B-DK Datasheet - Page 15

• Manufacturer Part Number: SIM3C1XX-B-DK
• Description: Specifications: Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant
• Manufacturer: Silicon_Laboratories

UDP SiM3C1xx
4.14.6. P0.14
Pin P0.14 connects to the CTS pin of the CP210x by default.
4.14.7. P0.15
Pin P0.15 connects to the RTS pin of the CP210x by default. Alternatively, P0.15 can be enabled for use as the
XTAL1 input.
4.14.8. P1.0
Pin P1.0 is a GPIO pin by default. Alternatively, P1.0 can be enabled for use as the XTAL2 input. P1.0 is connected
to the external crystal circuit, but the external crystal circuit is not populated by default. See the MCU card
schematic in 6. "Schematics‚" on page 18 for more information on the external crystal circuit.
4.14.9. P1.5
Pin P1.5 is a GPIO pin by default. Alternatively, P1.5 can be used at the potentiometer input pin if the User Control
switch is in the ON position.
4.14.10. P2.8, P2.9
Pins P2.8 and P2.9 are both GPIO pins by default. Alternatively, P2.8 and P2.9 can be used as switches (SW2 and
SW3) if the User Control switch is in the ON position.
4.14.11. P2.10, P2.11
Pins P2.10 and P2.11 are both GPIO pins by default. Alternatively, P2.10 and P2.11 can be used as LEDs (DS3
and DS4) if the User Control switch is in the ON position.
4.14.12. P2.12
Pin P2.12 is a GPIO pin by default. Alternatively, P2.12 can be used at the potentiometer bias pin if the User
Control switch is in the ON position.
4.14.13. P3.10, P3.11
Pins P3.10 and P3.11 normally connects to the EBID UDP bus. To disconnect these pins from the UDP bus circuit,
remove the 0  resistors R34 and R35.
Rev. 0.1
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