Specifications

Appendix B Quick Reference 37
DIP1 : OFF (Lower) position è Normal Speed Mode
(Frequency of Oscillator Crystal = 1.8432 MHz)
STANDARD MODE: In this mode, The I/O Addresses and its IRQ
Level for each port are set to default as shown below, (Disable BIOS
setting of on-board COM1 ~ COM4)
.oNtroP.oNtroP
.oNtroP
.oNtroP.oNtroPsserddAO/IsserddAO/I
sserddAO/I
sserddAO/IsserddAO/I
troPMOCtroPMOC
troPMOC
troPMOCtroPMOC
.oN
)*(leveLQRI)*(leveLQRI
)*(leveLQRI
)*(leveLQRI)*(leveLQRI
QRItnednepednIQRIerahS
1troPh8F31MOC1PJ1PJ
2troPh8F22MOC2PJ1PJ
3troPh8E33MOC3PJ1PJ
4troPh8E24MOC4PJ1PJ
.oNtroP.oNtroP
.oNtroP
.oNtroP.oNtroPsserddAO/IsserddAO/I
sserddAO/I
sserddAO/IsserddAO/I
troPMOCtroPMOC
troPMOC
troPMOCtroPMOC
.oN
)*(leveLQRI)*(leveLQRI
)*(leveLQRI
)*(leveLQRI)*(leveLQRI
QRItnednepednIQRIerahS
1troP
sserddAesaB
h00+
1MOC1PJ1PJ
2troP
sserddAesaB
h80+
2MOC2PJ1PJ
3troP
sserddAesaB
h01+
3MOC3PJ1PJ
4troP
sserddAesaB
h81+
4MOC4PJ1PJ
ENHANCED MODE: In this mode, The I/O Addresses and its IRQ
Level for each port are set to default as shown below, (Make sure that
the I/O address on BIOS setting of on-board COM1 ~ COM4 will
never conflict with [Base Address] ~ [Base Address + 20h])