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Jumper Setting
IRQ Mode (JP1, IRQ12*)
Operation System Mode (JP3)
* Connect Left two pins of JP3 is used to DOS, Windows 3.1
Connect Right two pins of JP3 is used to Windows 95, NT
Speed Mode (SW2)
DIP1 : ON (Upper) position==> High Speed Mode or x 8 Mode
(Frequency of Oscillator Crystal = 14.7456 MHz)
* DIP1 : OFF (Lower) position==> Normal Speed Mode
(Frequency of Oscillator Crystal = 1.8432 MHz)
(*: default)
Base Address MODE (SW1): In this mode, The I/O Addresses and its
IRQ Level for each port are set to default as below, (Please make sure
that the I/O address on BIOS setting of on-board COM1 ~ COM4 will
never conflict with [Base Address] ~ [Base Address + 3Fh])
3 2
PCL-858
User's Manual
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