Ublox SARA-R4 Series System Integration Manual

SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11 System description Page 15 of 157
Function
Pin Name
Pin No
I/O
Description
Remarks
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.

Ublox SARA-R4 Series Specifications

General

Brand	Ublox
Model	SARA-R4 Series
Category	Control Unit
Language	English