Supervisor Registers - Kontron PCI-946-1 Technical Reference Manual

PCI-946-1 and P3S440BX Technical Reference manual

3.3. SUPERVISOR REGISTERS

The PCI-946-1 and P3S440BX provide a set of programmable I/O registers to setup the
Intel PIIX4 (I/O addresses 4030h to 4037h) and the XILINX FPGA (I/O addresses
programmable at 190h-19Fh, 290h-29Fh or 390h-39Fh using the AWARD Chipset
Features Setup).
Only register bits needed to program the power fail detection and watchdog functions are
described below.
The Supervisor Registers consist of six I/O registers which are used to configure and
control the special features of the board, such as the Analog Watchdog, the Programmable
Watchdog and the Power Fail Detection.
These registers are 8-bit wide and can be located at three different I/O base addresses:
190h, 290h or 390h.
When setting Register x90h at one base address, all the other registers are located at the
same base address plus one, two, three and so on. To select the base address, use the
AWARD CMOS Setup Utility Chipset Features Setup (see Section 4.1.6).
This section includes a description of each I/O register and bit available for programming
and configuring the PCI-946-1 and P3S440BX.
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