EP100 AMD Embedded G-Series Processor EPIC Board with LVDS
12
Board and Pin Assignments
2.3.5
COM1 Data/Power Selection (JP6)
The COM1 port has +5V level power capability on DCD and +12V level on RI by setting
this jumper. When COM1 is set to +5V or +12V level, please make sure the
communication mode is RS-232 (see section 2.3.6).
2.3.6
COM1 RS-232/422/485 Mode Setting (JP7, JP8, JP9)
Use these jumpers to set COM1 port to operate as RS-232, RS-422 or RS-485
communication mode. When these jumpers are set to operate as RS-422 or RS485,
please make sure COM1 is on data mode (see section 2.3.5)
2.3.7
LVDS Voltage Selection (JP10 and JP12)
The board supports voltage selection for flat panel displays. JP10 is used to set LVDS
connector (CN13) pin 1~6 VCCM to +3.3V or +5V voltage level. JP12 is used to set
LVDS connector (CN13) pin 1~6 VCCM to +12V voltage level.
Function
Setting
Power: Set CN17A/COM 1 pin 1 to +5V
level
1-3 close
Data: Set CN17A/COM1 pin 1 to DCD
(Default)
3-5 close
Power: Set CN17A/COM1 pin 9 to +12V
level
2-4 close
Data: Set CN17A /COM 1 pin 9 to RI
(Default)
4-6 close
Function
Setting
RS-232 mode
(Default)
JP7 3-5, 4-6 close
JP8 3-5, 4-6 close
JP9 1-2 close
RS-422 mode
JP7 1-3, 2-4 close
JP8 1-3, 2-4 close
JP9 3-4 close
RS-485 mode
JP7 1-3, 2-4 close
JP8 1-3, 2-4 close
JP9 5-6 close
Function
Setting
+3.3V level (Default)
JP10 1-2 close
+5V level
JP10 2-3 close
+12V level
JP12 1-2 close
