
ConnectCore
f or
i.MX51
©
2011
Digi
International,
Inc.
109
SPI Header, P24
The development board provides access to the SPI interface on the module using the SPI
header, P24. This interface is connected to i.MX51 ECSPI1 port.
The SPI bus is connected to the following interfaces on the development board:
(*) the SPI chip select signal for the two LCD interfaces is generated with a logic combination
of GPIO4_26 and the touch selection jumper (J20).
The SPI bus is connected to the following interfaces of the ConnectCore for i.MX51 module.
The table below provides the pinout of the SPI header:
By default, SPI pins are configured as GPIO signals.
Interface
Chip Select
SPI Header
CSPI1_SS1/GPIO4_25
LCD1
GPIO4_26 (*)
LCD2
GPIO4_26 (*)
Interface
Chip Select
MC13892 Power Management
CSPI1_SS0/GPIO4_24
Pin
Function
Defaults to
1
+2.775V
2
SPI_MOSI/GPIO4_22
GPIO4_22
3
SPI_MISO/GPIO4_23
GPIO4_23
4
SPI_SCLK/GPIO4_27
GPIO4_27
5
SPI_SS1/GPIO4_25
GPIO4_25
6
GND
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