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J10: COM2 RS232 / RS422 / RS485 (Optional: TTL)
Pin #
Signal Name
1
DCD2/ 422TX- / RS485-
3
TXD2 / 422RX+
5
GND
7
RTS2
9
RI2
J12: GPIO (Port 2 / 3)
Pin #
Signal Name Pin #
1
GND
3
GP20
5
GP21
7
GP22
9
GP23
11
GP24
13
GP25/RS232 14
15
GP26/RS422 16
17
GP27/RS485 18
19
VCC
Note:
If you Enable 2M SPI flash Disk on the BIOS setting, you cannot use GP30~GP33 Pins.
If you Enable RS-232/422/485 on the BIOS setting, you cannot use GP25~GP27 Pins.
J13: RS-485 (Auto direction)
Pin #
Signal Name
1
RS485＋
2
RS485－
3
Vortex86SX-6115-V2
Pin #
2
4
6
8
10
Signal Name
2
VCC
4
SPICS / GP30
6
SPICLK / GP31
8
SPID0 / GP32
10
SPIDI / GP33
12
GP34
GP35
GP36
GP37
20
GND
GND
Vortex86SX™ Tiny CPU Module
Signal Name
RXD2 / 422TX+ / RS485+
DTR2 / 422RX-
DSR2
CTS2
NC
11
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