LISA-U2 series - System integration manual
UBX-13001118 - R27
System description
Page 104 of 183
C1-Public
Pin
Name
Description
Remarks
40
I2S1_TXD /
GPIO7
2
nd
I2S transmit data /
GPIO
By default, the pin is configured as 2
nd
I2S transmit data output.
Can be alternatively configured by the +UGPIOC, +USPM commands as:
•
Output
•
Input
•
Pad disabled
53
I2S1_CLK /
GPIO8
2
nd
I2S clock /
GPIO
By default, the pin is configured as 2
nd
I2S clock input/output.
Can be alternatively configured by the +UGPIOC, +USPM commands as:
•
Output
•
Input
•
Pad disabled
54
I2S1_WA /
GPIO9
2
nd
I2S word alignment /
GPIO
By default, the pin is configured as 2
nd
I2S word alignment input/output.
Can be alternatively configured by the +UGPIOC, +USPM commands as:
•
Output
•
Input
•
Pad disabled
55
SPI_SCLK /
GPIO10
SPI Serial Clock /
GPIO
By default, the pin is configured as SPI Serial Clock Input:
•
Idle low (CPOL=0)
•
Internal active pull-down to GND enabled
Can be alternatively configured by the +UGPIOC command as:
•
Output
•
Input
•
Pad disabled
56
SPI_MOSI /
GPIO11
SPI Data Line /
GPIO
By default, the pin is configured as SPI Data Line Input:
•
Shift data on rising clock edge (CPHA=1)
•
Latch data on falling clock edge (CPHA=1)
•
Idle high
•
Internal active pull-up to V_INT enabled
Can be alternatively configured by the +UGPIOC command as:
•
Output
•
Input
•
Pad disabled
57
SPI_MISO /
GPIO12
SPI Data Line Output /
GPIO
By default, the pin is configured as SPI Data Line Output:
•
Shift data on rising clock edge (CPHA=1)
•
Latch data on falling clock edge (CPHA=1)
•
Idle high
Can be alternatively configured by the +UGPIOC command as:
•
Output
•
Input
•
Pad disabled
58
SPI_SRDY /
GPIO13
SPI local device ready /
GPIO
By default, the pin is configured as SPI local device ready output:
•
Idle low
Can be alternatively configured by the +UGPIOC command as:
•
Output
•
Input
•
Module Status Indication
•
Pad disabled
59
SPI_MRDY /
GPIO14
SPI host ready /
GPIO
By default, the pin is configured as SPI host ready input:
•
Idle low
•
Internal active pull-down to GND enabled
Can be alternatively configured by the +UGPIOC command as:
•
Output
•
Input
•
Module Operating Mode Indication
•
Pad disabled
Table 42: GPIO pin configurations