MICROENHANCER EV-659A video card Settings and Configuration

Category	Video
Video Types Supported	CGA/EGA/Monochrome
Video Processor	Unidentified
Highest Resolution Supported	640 x 350
Data Bus Type	8-Bit ISA
Memory Type	DRAM
Maximum Onboard Memory	256KB (Exact location of memory is unidentified)

CONNECTIONS
Purpose	Location	Purpose	Location
RCA Jack	J1	15-pin analog video port	P2
RCA Jack	J2	VGA feature connector	P3

VIDEO PORT ADDRESS SELECTION
Address		W5
»	3xx	Pins 2 & 3 closed
	2xx	Pins 1 & 2 closed

VIDEO EMULATION CONFIGURATION
Setting		Autoswitch	SW1/5	SW1/6
»	Hercules emulation disabled	Disabled	Off	Off
	Hercules emulation enabled	Enabled	On	On

MONITOR TYPE CONFIGURATION
Type		Mode	SW1/1	SW1/2	SW1/3	SW1/4	SW1/7	SW1/8
»	EGA	EGA 80 x 25	Off	On	On	Off	On	On
	EGA	CGA 80 x 25	On	On	On	Off	On	On
	CGA	CGA 80 x 25	Off	Off	Off	On	On	Off
	CGA	CGA 40 x 25	On	Off	Off	On	On	Off
	Monochrome	Monochrome	Off	Off	On	Off	Off	Off

VIDEO INTERRUPT SELECTION
IRQ		W12/1	W12/2	W12/3	W12/4	W12/5	W12/6	W12/7
»	Non Maskable Interrupt	Closed	Open	Open	Open	Open	Open	Open
	2	Open	Closed	Open	Open	Open	Open	Open
	3	Open	Open	Closed	Open	Open	Open	Open
	4	Open	Open	Open	Closed	Open	Open	Open
	5	Open	Open	Open	Open	Closed	Open	Open
	6	Open	Open	Open	Open	Open	Closed	Open
	7	Open	Open	Open	Open	Open	Open	Closed

INTERRUPT TYPE CONFIGURATION
Type		W6
»	Non Maskable	Pins 2 & 3 closed
	Normal	Pins 1 & 2 closed

FACTORY CONFIGURED - DO NOT ALTER
Jumper	Position
W8	Pins 1 & 2 closed
W11	Open