Specifications

Touch Controllers Reference Guide98
Setting the Communication Port
The pins labeled A1 – A6 on JP1 define the serial communication
(COM) port for the PC Bus controller.
Valid ports are COM1 through COM8. Refer to Table 18.
The default is COM3.
In most PC configurations, the mouse uses COM1. However, if you
are using a touchscreen and a mouse, both devices cannot use the
same COM port. You must be sure there are no device conflicts.
Note:
The PC Bus controller does support COM8. However, most
PCs reserve COM8 for a diskette drive. Additionally, the Microcal
Diagnostic utility only searches for the touchscreen on COM1 through
COM7. Therefore, if you choose COM8, you cannot use Microcal to
test the operation of the touchscreen.
Table 18. Setting the Communication Port (JP1)
COM Port
(I/O Address)
Jumper
Settings
COM Port
(I/O Address)
Jumper
Settings
COM1
(3F8 – 3FF)
A1
A2
A3
A4
A5
A6
COM5
(2E0 – 2E7)
A1
A2
A3
A4
A5
A6
COM2
(2F8 – 2FF)
A1
A2
A3
A4
A5
A6
COM6
(2F0 – 2F7)
A1
A2
A3
A4
A5
A6
COM3
*
(3E8 – 3EF)
A1
A2
A3
A4
A5
A6
COM7
(3E0 – 3E7)
A1
A2
A3
A4
A5
A6
COM4
(2E8 – 2EF)
A1
A2
A3
A4
A5
A6
COM8
(3F0 – 3F7)
A1
A2
A3
A4
A5
A6
*
Default