Analog Devices EV-21569-SOM Manual page 22

Table 3-4: Output Signals of Microchip GPIO Expander (U13 Port A)
Bit Signal Name Description
0 LED6
GPIO LED
1 LED7
GPIO LED
2 LED4
GPIO LED
3 SPI2FLASH_
Enable SPI Flash CS
CS_EN
4 SPI2D2_D3_
Enabel SPI Flash Quad Mode
EN
5 UART0_EN
Enable FTDI UART to USB
6 UART0_FLOW_
Enables UART Flow Control on
EN
FTDI
7 NOT USED
Table 3-5: Output Signals of Microchip GPIO Expander (U13 Port B)
Bit Signal Name Description
0 NOT USED
1 NOT USED
2 NOT USED
3 NOT USED
4 NOT USED
5 NOT USED
6 NOT USED
7 NOT USED
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EV-21569-SOM Manual
FET Processor Signal
(if applicable)
None
None
None
U3 PA_05/SPI2_SEL1/
OSPI_SEL1/SMC0_D05/
SPI2_SS
U4 U5 PA_02/SPI2_D2/OSPI_D2/
TWI3_SCL/SMC0_D02/
TM0_ACLK3 PA_03/SPI2_D3/
OSPI_D3/TWI3_SDA/
SMC0_D03
U8 PA_06/SPI0_CLK/UART0_TX/
OSPI_D4/SMC0_D06/
TM0_ACLK1 PA_07/
SPI0_MISO/UART0_RX/
OSPI_D5/SMC0_D07/
TM0_ACI0
U8 PA_08/SPI0_MOSI/
UART0_RTS/OSPI_D6/
SMC0_D08/TM0_ACLK2
PA_09/SPI0_SEL1/
UART0_CTS/OSPI_D7/
SMC0_D09/SPI0_SS
FET Processor Signal
(if applicable)
Software-Controlled Switches (SoftConfig)
Connected
LED6
LED7
LED4
U11
U11
U7
U7
Connected
Default
Low
Low
Low
High
High
Low
Low
Default
3–7