Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R13 System description Page 12 of 119
Function Pin Name Pin No I/O Description Remarks
I2S_RXD /
SPI_MISO
37 I SPI MISO SPI Master Input Slave Output, alternatively configurable as I
2
S receive
data
Not supported by “00”, “01” and “x2” product versions.
See section 1.9.3 for functional description.
See section 2.6.3 for external circuit design-in.
I2S_CLK /
SPI_CLK
36 O SPI clock SPI clock, alternatively configurable as I
2
S clock
Not supported by “00”, “01” and “x2” product versions.
See section 1.9.3 for functional description.
See section 2.6.3 for external circuit design-in.
I2S_TXD /
SPI_CS
35 O SPI Chip Select SPI Chip Select, alternatively settable as I
2
S transmit data
Not supported by “00”, “01” and “x2” product versions.
See section 1.9.3 for functional description.
See section 2.6.3 for external circuit design-in.
SDIO SDIO_D0 47 I/O SDIO serial data [0] Not supported by “00”, “01” and “x2” product versions.
See section 1.9.4 for functional description.
See section 2.6.4 for external circuit design-in.
SDIO_D1 49 I/O SDIO serial data [1] Not supported by “00”, “01” and “x2” product versions.
See section 1.9.4 for functional description.
See section 2.6.4 for external circuit design-in.
SDIO_D2 44 I/O SDIO serial data [2] Not supported by “00”, “01” and “x2” product versions.
See section 1.9.4 for functional description.
See section 2.6.4 for external circuit design-in.
SDIO_D3 48 I/O SDIO serial data [3] Not supported by “00”, “01” and “x2” product versions.
See section 1.9.4 for functional description.
See section 2.6.4 for external circuit design-in.
SDIO_CLK 45 O SDIO serial clock Not supported by “00”, “01” and “x2” product versions.
See section 1.9.4 for functional description.
See section 2.6.4 for external circuit design-in.
SDIO_CMD 46 I/O SDIO command Not supported by “00”, “01” and “x2” product versions.
See section 1.9.4 for functional description.
See section 2.6.4 for external circuit design-in.
DDC SCL 27 O I
2
C bus clock line 1.8 V open drain, for communication with I2C-slave devices.
Internal pull-up to V_INT: external pull-up is not required.
Not supported by “00” and “01” product versions.
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
SDA 26 I/O I
2
C bus data line 1.8 V open drain, for communication with I2C-slave devices.
Internal pull-up to V_INT: external pull-up is not required.
Not supported by “00” and “01” product versions.
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
Audio I2S_TXD /
SPI_CS
35 O I
2
S transmit data I
2
S transmit data, alternatively configurable as SPI Chip Select
Not supported by “00”, “01” and “x2” product versions.
See section 1.10 for functional description.
See section 2.7 for external circuit design-in.
I2S_RXD /
SPI_MISO
37 I I
2
S receive data I
2
S receive data, alternatively configurable as SPI Master Input Slave
Output
Not supported by “00”, “01” and “x2” product versions.
See section 1.10 for functional description.
See section 2.7 for external circuit design-in.
I2S_CLK /
SPI_CLK
36 I/O I
2
S clock I
2
S clock, alternatively configurable as SPI clock
Not supported by “00”, “01” and “x2” product versions.
See section 1.10 for functional description.
See section 2.7 for external circuit design-in.