User manual

Serial2 subkey:
PortAddress = REG_DWORD 0xFC00
Interrupt = REG_WORD 5
DosDevices = REG_SZ COM3
InterruptStatus = REG_DWORD 0xFC08
PortIndex = REG_DWORD 1
Indexed =0
Serial4 subkey:
PortAddress = REG_DWORD 0xFD80
Interrupt = REG_DWORD 5
DosDevices = REG_SZ COM5
InterruptStatus = REG_DWORD 0xFC08
PortIndex - REG_DWORD 3
Indexed=0
Serial3 subkey:
PortAddress = REG_DWORD 0xFD00
Interrupt = REG_DWORD 5
DosDevices = REG_SZ COM4
InterruptStatus = REG_DWORD 0xFCO8
PortIndex = REG_DWORD 2
Indexed=0
Serial5 subkey:
PortAddress = REG_DWORD 0xFE00
Interrupt = REG_DWORD 5
Dos Devices = REG_SZ COM6
InterruptStatus = REG_DWORD 0xFC08
PortIndex = REG_DWORD 4
Indexed=0
As this example shows, the Interrupt status register, which indicates which port (s) caused an IRQ, is
located at COM A Base Address +8.
Manual PCI-ICM-422(485)/2(4)
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