Kontron SMARC-sA3874i - Manual (Page 36)

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User’s Guide
3.2.18 SPI Interfaces
The ULP-COM sA3874i module supports two external SPI interfaces that are available off-Module for general
purpose use.
SPI interface signals are exposed on the ULP-COM sSA3874i edge connector as shown below:
ULP-COM sA3874i Edge finger TI Cortex A8 CPU Net Name Notes
Pin # Pin Name Pin # Pin Name
SPI0
P43 SPI0_CS0# AC17 SPI[3]_SCS[0]n SPI3_CS0#
SPI 0 Master Chip Select 0
output
P31 SPI0_CS1# AG27 SPI[3]_SCS[1]n SPI3_CS1#
SPI 0 Master Chip Select 1
output
P44 SPI0_CK AE18 SPI[3]_SCLK SPI3_CK SPI 0 Master Clock output
P45 SPI0_DIN AC16 SPI[3]_D[1] SPI3_DIN
SPI 0 Master Data input
(input to CPU, output from
SPI device)
P46 SPI0_DO AC21 SPI[3]_D[0] SPI3_DO
SPI 0 Master Data output
(output from CPU, input to
SPI device)
SPI1
P54 SPI1_CS0# AD3 SPI[1]_SCS[0]# SPI1_CS0#
SPI 1 Master Chip Select 0
output
P55 SPI1_CS1# W6 SPI[1]_SCS[1]n SPI1_CS1#
SPI 1 Master Chip Select 1
output
P56 SPI1_CK AC3 SPI[1]_SCLK SPI1_CK SPI 1 Master Clock output
P57 SPI1_DIN AA6 SPI[1]_D[0] SPI1_DIN
SPI 1 Master Data input
(input to CPU, output from
SPI device)
P58 SPI1_DO AA3 SPI[1]_D[1] SPI1_DO
SPI 1 Master Data output
(output from CPU, input to
(SPI device)