Kontron cPCI-MXS64GX, Technical Reference Manual

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Installing the Board
3.5
The serial port 3 & 4 interrupt can be controlled in the following way.
CIS Bit 1 Bit 0
IRQ 3 0 0
IRQ 4 0 1
IRQ 5 1 0
IRQ 7 1 1
The serial port 3 & 4 base address can be controlled in the following way.
CBAS Bit 1 Bit 0
3F8 0 0
2F8 0 1
3E8 1 0
2E8 1 1
3.1.8. Uart 4 PnP configuration
CPLD Address D7 D6 D5 D4 D3 D2 D1 D0
READ n95* CND4 CIS4_1 CIS4_0 CBAS4_
1
CBAS4_0
WRITE n95* CND4 CIS4_1 CIS4_0 CBAS4_
1
CBAS4_0 NU
Power-up Default 0 0 0 1 1
CND4 : When low, decode the base address
CIS4_ : [1..0] COM port interrupt select.
CBAS4_ : [1..0] COM base address select.
3.1.9. Digital watchdog
CPLD Address D7 D6 D5 D4 D3 D2 D1 D0
READ n96* WDEN WDD2 WDD1 WDD0 NU NU NU NU
WRITE n96* WDEN WDD2 WDD1 WDD0 NU NU NU NU
Power-up Default 0 0 0 1
WDEN : Enable/disable digital watchdog.
WDD[2..0] : Duration of digital watch dog.