Kontron SMARC-sA3874i Manual de usuario Pagina 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)
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