Seco Udoo X86 User Manual page 36

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All Arduino 101 signals are connected to the Intel

documentation for a description of these signals, and the way to use them.

Here following the description of the "expansion" signals available on these connectors:

SPDIF_OUT: Realtek ALC283 S/PDIF Out signal, 12mA@75Ω driving capability.

SDIO_CLK: Intel

Braswell SD/MMC Port #2 Clock line, 1.8V_A electrical level output signal. To be used exclusively as a GPIO signal.

SDIO_CMD: Intel

Braswell SD/MMC Port #2 Command line, 1.8V_A electrical level bidirectional signal. To be used exclusively as a GPIO signal.

SDIO_DAT[0..3]: Intel

Braswell SD/MMC Port #2 Data bus. 1.8V_A electrical level bidirectional signals. To be used exclusively as GPIO signals.

SDIO_WAKE#: Wake capable input signal, 1.8V_A electrical level input.

TS_I2C_SDA: Touch-screen dedicated I2C Bus data line. Bidirectional signal, electrical level +1.8V_A. It is managed by Intel

TS_I2C_SCL: Touch-screen dedicated I2C Bus clock line. Bidirectional signal, electrical level +1.8V_A. It is managed by Intel

TS_INT#: +1.8V_A electrical level input. This signal can be used to serve the interrupt request of an eventual external Touch Screen connected to the dedicated

I2C interface. It is also possible to use this signal as a GPIO.

TS_RST#: +1.8V_A electrical level output. This signal can be used to drive a reset of an eventual external Touch Screen connected to the dedicated I2C interface.

It is also possible to use this signal as a GPIO.

I2C0_SDA: I2C Bus data line. Bidirectional signal, electrical level +1.8V_A. It is managed by Intel

I2C0_SCL: I2C Bus clock line. Bidirectional signal, electrical level +1.8V_A. It is managed by Intel

PLT_RST#: Reset Signal that is sent from the SoC to all PCI-e devices available on the board (i.e. the GbE controller, the PCI-e based SSD modules plugged in

the CN20 slot and the connectivity modules plugged in CN19 slot). 3.3V active-low output signal.

LPC_SERIRQ#: LPC Serialised IRQ request, bidirectional line, +3.3V_S electrical level. It is managed by Intel

LPC_CLK: LPC Clock output, +3.3V_S electrical level 25MHz clock. It is managed by Intel

LPC_FRAME#: LPC Frame indicator, active low output line, +3.3V_S electrical level. It is managed by Intel

LPC_AD[0..3]: LPC address, command and data bus, bidirectional signal, +3.3V_S electrical level. It is managed by Intel

UART2_RXD: UART Interface, Serial data Receive (input) line, 1.8V_A electrical level. It is managed by Intel

UART2_TXD: UART Interface, Serial data Transmit (output) line, 1.8V_A electrical level. It is managed by Intel

UART2_CTS#: UART Interface, Handshake signal, Clear to Send (Input) line, 1.8V_A electrical level. It is managed by Intel

Controller #2.

UART2_RTS#: UART Interface, Handshake signal, Request to Send (output) line, 1.8V_A electrical level. It is managed by Intel

X86

Curie microcontroller exactly in the same way as Arduino board. It is therefore possible refer to Arduino 101

Braswell SoCs' I2C port #0.

Braswell SoCs' LPC bridge.

Braswell SoCs' LPC bridge

Braswell SoCs' High Speed UART Controller #2.

Braswell SoCs' I2C port #5.

Braswell SoCs' High Speed UART

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