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SARA-R5 Datasheet(PDF) 17 Page - u-blox AG |
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SARA-R5 Datasheet(HTML) 17 Page - u-blox AG |
17 / 43 page ![]() SARA-R5 series - Data sheet UBX-19016638 - R06 Interfaces Page 17 of 43 C1-Public 2.5.4 SDIO interface ☞ The SDIO interface is not supported by the “00” products version of SARA-R5 series modules. SARA-R5 series modules include a 1.8V 4-bit Secure Digital Input Output interface over the SDIO_D0, SDIO_D1, SDIO_D2, SDIO_D3, SDIO_CLK and SDIO_CMD pins, with the module acting a an SDIO host, available for communications with compatible external SDIO devices, and for diagnostic purpose. ☞ Accessible test points directly connected to the SDIO_D0, SDIO_D1, SDIO_D2 and SDIO_D3 pins may be provided for diagnostic purpose, alternatively to the highly recommended accessible test points provided on the USB interface pins. 2.5.5 DDC (I2C) interface ☞ Communication with an external GNSS receiver is not supported by SARA-R510M8S modules. SARA-R5 series modules include a 1.8V I2C-bus compatible DDC interface over the SDA and SCL pins, available to communicate with an external u-blox GNSS receiver and with external I2C devices as for example an audio codec: the SARA-R5 series module acts as an I2C master that can communicate with I2C slaves in accordance with the I2C bus specifications [10]. ☞ It is recommended to provide accessible test points directly connected to the SDA and SCL pins for diagnostic purpose. 2.6 Audio ☞ Audio is not supported by the “00” products version of SARA-R5 series modules. SARA-R5 series modules include a 1.8V I2S digital audio interface over the I2S_TXD, I2S_RXD, I2S_CLK and I2S_WA pins, available to transfer digital audio data with an external digital audio device. |
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