MEGAPLUS (REV. 6) IO card Settings and Configuration

Card Type	Multi-I/O card
Chip Set	Unidentified
Maximum Onboard Memory	512KB DRAM (with MegaPak option)
I/O Options	Parallel port, serial ports (2)
Data Bus	8-bit ISA
Floppy drives supported	None

CONNECTIONS
Function	Label	Function	Label
Serial port 1	J1	DCE connector	J4
Parallel port	J2	Daughter board connector	J5
DTE connector	J3

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	DTE pin select	JP1	Pins 1 & 2 closed
	DCE pin select	JP1	Pins 2 & 3 closed
	COM 1 enabled	JP3	Pins 3 & 4 closed
	COM 2 enabled	JP3	Pins 5 & 6 closed

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
64KB	(8) 64K x 1	None	None	None
128KB	(8) 64K x 1	(8) 64K x 1	None	None
192KB	(8) 64K x 1	(8) 64K x 1	(8) 64K x 1	None
256KB	(8) 64K x 1	(8) 64K x 1	(8) 64K x 1	(8) 64K x 1

INTERRUPT CONFIGURATION
IRQ	JP4/A	JP4/B	JP4/C	JP4/D	JP4/E	JP4/F	JP4/G	JP4/H
IRQ2S	Closed	Open	Open	Open	Open	Open	Open	Open
IRQ2C	Open	Closed	Open	Open	Open	Open	Open	Open
IRQ3S	Open	Open	Closed	Open	Open	Open	Open	Open
IRQ3	Open	Open	Open	Closed	Open	Open	Open	Open
IRQ4	Open	Open	Open	Open	Closed	Open	Open	Open
IRQ4C	Open	Open	Open	Open	Open	Closed	Open	Open
IRQ5C	Open	Open	Open	Open	Open	Open	Closed	Open
IRQ5S	Open	Open	Open	Open	Open	Open	Open	Closed

MISCELLANEOUS TECHNICAL NOTES

Note: The purpose of JP2 is unidentified.