AAEON EMB-A50M - Manual (Page 26)

M i n i - I T X E M B - A 5 0 M
Chapter 2 Quick Installation Guide 2 - 15
2.11 RS-232 Pin Header (COM 1, 3, 4)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N.C
2.12 RS-232/422/485 Pin Header (COM 2)
Pin Signal Pin Signal
1 DCD 2 RXD
3 TXD 4 DTR
5 GND 6 DSR
7 RTS 8 CTS
9 RI 10 N.C
2.13 Digital I/O Pin Header (DIO 1)
The memory address is 0xFED80180~ 0xFED80187.
Pin Signal Pin Signal
1 DIO1 2 DIO2
3 DIO3 4 DIO4
5 DIO5 6 DIO6
7 DIO7 8 DIO8
9 +5V 10 GND
BIOS Setting Connector
Definition
AMD Chipset GPIO
Address
DIO_P#8 @MIO:FED80187 Pin 8 GPIOD135
DIO_P#7 @MIO:FED80186 Pin 7 GPIOD134