Diamond Systems Hercules III, User Manual, Page: 34 / 86

Hercules III User Manual Rev A.2
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Page
34
8. SYSTEM OPERATION
8.1 System Resources
The table below lists the system resources utilized by the circuits on Hercules III.
Device Default Address ISA IRQ ISA
DMA
Selectable
Addresses
Serial Port COM1 I/O 0x3F8 4
–
2F8, 3E8, 2E8
Serial Port COM2 I/O 0x2F8 3
–
3F8, 3E8, 2E8
Serial Port COM3 I/O 0x3E8 6
– –
Serial Port COM4 I/O 0x2E8 7
– –
Serial Port COM5 I/O 0x100 4
– –
Serial Port COM6 I/O 0x108 3
– –
FPGA I/O 0x240 5 3 278, 3BC
A/D Circuit (when applicable) I/O 0x280
– 0x28F
4,5,6
– –
Watchdog
Timer/Serial Port/FPGA I/O 0x25C-0x25F
– – –
Ethernet OS-dependent OS-dependent
– –
USB OS-dependent OS-dependent
– –
Sound OS-dependent OS-dependent
– –
Video OS-dependent OS-dependent
– –
Note: In the preceding table, the selectable addresses are declared in CMOS BIOS.
Most of these resources are configurable and, in many cases, the operating system alters these settings. The
main devices that are subject to this dynamic configuration are on-board Ethernet, sound, video, USB, and any
PC/104-
Plus cards that are in the system. These settings may also vary depending on what other devices are
present in the system. For example, adding a PC/104- Plus card may change the on-board Ethernet resources.
8.2 Console Redirection to a Serial Port
In many applications without a local display and keyboard, it may be necessary to obtain keyboard and monitor
access to the CPU for configuration, file transfer, or other operations. Hercules III supports this operation by
enabling keyboard input and character output onto a serial port, referred to as console redirection. A serial port
on another PC can be connected to the serial port on Hercules III with a null modem cable, and a terminal
emulation program, such as HyperTerminal, can be used to establish the connection. The terminal program must
be capable of transmitting special characters including F2 (some programs or configurations trap special
characters).
The default Hercules III BIOS setting disables console redirection.
There are three possible configurations for console redirection:
•
POST-only (default)
•
Always On
•
Disabled