LISA-U2 series - System integration manual
UBX-13001118 - R27
System description
Page 14 of 183
C1-Public
Function Pin
Module
No
I/O Description
Remarks
Digital
Audio
I2S_CLK
All
43
I/O First I2S clock
Check device specifications to ensure
compatibility with module supported modes.
See section
I2S_RXD
All
44
I
First I2S receive
data
Internal active pull-down to GND enabled.
Check device specifications to ensure
compatibility with module supported modes.
See section
I2S_TXD
All
42
O
First I2S transmit
data
Check device specifications to ensure
compatibility with module supported modes.
See section
I2S_WA
All
41
I/O First I2S word
alignment
Check device specifications to ensure
compatibility with module supported modes.
See section
I2S1_CLK
All
53
I/O Second I2S clock Check device specifications to ensure
compatibility with module supported modes.
See section
I2S1_RXD
All
39
I
Second I2S
receive data
Internal active pull-down to GND enabled.
Check device specifications to ensure
compatibility with module supported modes.
See section
I2S1_TXD
All
40
O
Second I2S
transmit data
Check device specifications to ensure
compatibility with module supported modes.
See section
I2S1_WA
All
54
I/O Second I2S word
alignment
Check device specifications to ensure
compatibility with module supported modes.
See section
CODEC_CLK
All
52
O
Clock output
Digital clock output for external audio codec
See section
Reserved RSVD
All
5
N/A RESERVED pin
This pin must be connected to ground
See section
RSVD
LISA-U200
LISA-U201
LISA-U260
LISA-U270
74
N/A RESERVED pin
Do not connect
See section
Table 3: LISA-U2 modules pin definition, grouped by function