LARA-R2 series - System Integration Manual
UBX-16010573 - R02
Objective Specification
System description
Page 14 of 148
Function
Pin Name
Pin No
I/O
Description
Remarks
SDIO
SDIO_D0
47
I/O
SDIO serial data [0]
Not supported by “02” product versions.
SDIO interface for communication with u-blox Wi-Fi module
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
SDIO_D1
49
I/O
SDIO serial data [1]
Not supported by “02” product versions.
SDIO interface for communication with u-blox Wi-Fi module
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
SDIO_D2
44
I/O
SDIO serial data [2]
Not supported by “02” product versions.
SDIO interface for communication with u-blox Wi-Fi module
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
SDIO_D3
48
I/O
SDIO serial data [3]
Not supported by “02” product versions.
SDIO interface for communication with u-blox Wi-Fi module
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
SDIO_CLK
45
O
SDIO serial clock
Not supported by “02” product versions.
SDIO interface for communication with u-blox Wi-Fi module
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
SDIO_CMD
46
I/O
SDIO command
Not supported by “02” product versions.
SDIO interface for communication with u-blox Wi-Fi module
See section 1.9.5 for functional description.
See section 2.6.5 for external circuit design-in.
Audio
I2S_TXD
35
O /
I/O
I
2
S transmit data /
GPIO
I
2
S transmit data output, alternatively configurable as GPIO.
I
2
S not supported by LARA-R204 module ‘02’ product version.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
I2S_RXD
37
I /
I/O
I
2
S receive data /
GPIO
I
2
S receive data input, alternatively configurable as GPIO.
I
2
S not supported by LARA-R204 module ‘02’ product version.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
I2S_CLK
36
I/O /
I/O
I
2
S clock /
GPIO
I
2
S serial clock, alternatively configurable as GPIO.
I
2
S not supported by LARA-R204 module ‘02’ product version.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
I2S_WA
34
I/O /
I/O
I
2
S word alignment /
GPIO
I
2
S word alignment, alternatively configurable as GPIO.
I
2
S not supported by LARA-R204 module ‘02’ product version.
See sections 1.10 and 1.12 for functional description.
See sections 2.7 and 2.8 for external circuit design-in.
Clock
output
GPIO6
19
O
Clock output
1.8 V configurable clock output.
See section 1.11 for functional description.
See section 2.7 for external circuit design-in.
