Hardware Documentation efus™A9X+ efus™A9Xr2
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4.5 SPI
The module support 2 HS SPI (Serial Peripheral Interface) with 2 chip selects and 2 interrupt
inputs. All signals are 3.3V compliant and do have pull-up on module. Devices on baseboard
with other voltage need a level shifter.
No
Name
Description
Onboard PU
50
SPI_B_MISO
SPI port B MISO
52
SPI_B_MOSI
SPI port B MOSI
54
SPI_B_SPCK
SPI port B Clock
56
SPI_B_CS1
SPI port B chip select 1 output
58
SPI_B_CS2
SPI port B chip select 2 output
60
SPI_B_IRQ1
SPI port B interrupt 1 input
100k
62
SPI_B_IRQ2
SPI port B interrupt 1 input
100k
66
SPI_A_MISO
SPI port A MISO
68
SPI_A_MOSI
SPI port A MOSI
70
SPI_A_SPCK
SPI port A Clock
72
SPI_A_CS1
SPI port A chip select 1 output
74
SPI_A_CS2
SPI port A chip select 2 output
76
SPI_A_IRQ1
SPI port A interrupt 1 input
100k
78
SPI_A_IRQ2
SPI port A interrupt 1 input
100k
