MSI Fuzzy 945GM2 User Manual page 50

MS-9642 Mainboard
Serial Port 2 / 3 Mode
These settings specify the transmission mode of the Serial Port 2 & 3.
RS-422 defines a Balanced (differential) interface, specifying a single,
unidirectional driver with multiple receivers (up to 32). RS-422 will support
Point-to-Point, Multi-Drop circuits, but not Multi-Point.
RS-485 defines a Balanced (differential) interface, specifying bidirectional,
half-duplex data transmission. Up to 32 transmitters and 32 receivers may
be interconnected in any combination, including one driver and multiple
receivers (multi-drop), or one receiver and multiple drivers.
Watch Dog
You can enable the system watch-dog timer, a hardware timer that gener-
ates either an NMI or a reset when the software that it monitors does not
respond as expected each time the watch dog polls it.
Watch Dog Timer (Minutes)
Select the watch-dog timer period.
Onboard Parallel Port
There is a built-in parallel port on the on-board Super I/O chipset that pro-
vides Standard, ECP, and EPP features. It has the following options:
[Disabled]
[3BC/IRQ7]
[278/IRQ5]
[378/IRQ7]
Parallel Port Mode
[SPP]
[EPP]
[ECP]
[ECP + EPP]
To operate the onboard parallel port as Standard Parallel Port only, choose
[SPP]. To operate the onboard parallel port in the EPP mode simultaneously,
choose [EPP]. By choosing [ECP], the onboard parallel port will operate in
ECP mode only. Choosing [ECP + EPP] will allow the onboard parallel port to
support both the ECP and EPP modes simultaneously.
EPP Mode Select
The onboard parallel port is EPP Spec. compliant, so after the user chooses
the onboard parallel port with the EPP function, the following message will
be displayed on the screen: "EPP Mode Select." At this time either [EPP 1.7]
spec or [EPP 1.9] spec can be chosen.
ECP Mode Use DMA
The ECP mode has to use the DMA channel, so choose the onboard parallel
port with the ECP feature. After selecting it, the following message will
appear: "ECP Mode Use DMA." At this time, the user can choose between
DMA channel [3] or [1].
3-14
Line Printer port 0
Line Printer port 2
Line Printer port 1
Standard Parallel Port
Enhanced Parallel Port
Extended Capability Port
Extended Capability Port + Enhanced Parallel Port