MONOLITHIC SYSTEMS, INC. (COLORADO MSI)
MICROPAQ 452
| 
 
  | |
| 
 Data bus:  | 
 16-bit ISA  | 
| 
 Size:  | 
 Full-length, Full-height card  | 
| 
 Hard drive supported:  | 
 2 IDE(AT) interface drives  | 
| 
 Floppy drives supported:  | 
 360KB, 720KB, 1.2MB, 1.44MB  | 
| 
 CONNECTIONS  | |
| 
 Function  | 
 Location  | 
| 
 40-pin IDE(AT) interface connector  | 
 J1  | 
| 
 34-pin control cable connector - floppy drive  | 
 J2  | 
| 
 25-pin parallel port - internal  | 
 J3  | 
| 
 9-pin serial port 1 - internal  | 
 J4  | 
| 
 9-pin serial port 2 - internal  | 
 J5  | 
| 
 4-pin connector - drive active LED  | 
 J6  | 
| 
 VGA feature connector  | 
 J7  | 
| 
 EGA feature connector  | 
 J11  | 
| 
 15-pin analog video port  | 
 J13  | 
| 
 15-pin digital video port  | 
 J21  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Location  | 
 Setting  | |
| » | 
 IDE(AT) interface pin 34 grounded  | 
 J10  | 
 closed  | 
| 
 IDE(AT) interface pin 34 not grounded  | 
 J10  | 
 open  | |
| » | 
 Floppy drive interface precompensation is 125ns  | 
 J12  | 
 open  | 
| 
 Floppy drive interface precompensation is 187ns  | 
 J12  | 
 closed  | |
| » | 
 IDE(AT) interface enabled  | 
 J14  | 
 open  | 
| 
 IDE(AT) interface disabled  | 
 J14  | 
 closed  | |
| » | 
 On-board video adapter enabled  | 
 J15  | 
 closed  | 
| 
 On-board video adapter disabled  | 
 J15  | 
 open  | |
| 
 USER CONFIGURABLE SETTINGS(CONTINUED)  | |||
| 
 Function  | 
 Location  | 
 Setting  | |
| » | 
 Floppy drive interface interrupt IRQ6 enabled  | 
 J16  | 
 closed  | 
| 
 Floppy drive interface interrupt IRQ6 disabled  | 
 J16  | 
 open  | |
| » | 
 Single speed floppy drive  | 
 J17  | 
 open  | 
| 
 Dual speed floppy drive  | 
 J17  | 
 closed  | |
| » | 
 16-bit mode enabled  | 
 J18  | 
 open  | 
| 
 8-bit mode enabled  | 
 J18  | 
 closed  | |
| » | 
 Floppy disk change signal enabled  | 
 J19  | 
 closed  | 
| 
 Floppy disk change signal disabled  | 
 J19  | 
 open  | |
| » | 
 Monitor type select color  | 
 J20  | 
 pins 1 & 2 closed  | 
| 
 Monitor type select monochrome  | 
 J20  | 
 pins 2 & 3 closed  | |
| » | 
 VGA clock enabled  | 
 J22  | 
 pins 1 & 2 closed  | 
| 
 Feature clock enabled  | 
 J22  | 
 pins 2 & 3 closed  | |
| » | 
 Floppy drive interface enabled  | 
 J23  | 
 closed  | 
| 
 Floppy drive interface disabled  | 
 J23  | 
 open  | |
| » | 
 IDE(AT) interface interrupt IRQ14 enabled  | 
 J24  | 
 closed  | 
| 
 IDE(AT) interface interrupt IRQ14 disabled  | 
 J24  | 
 open  | |
| » | 
 Factory configured - do not alter  | 
 S4/6  | 
 N/A  | 
| 
 VIDEO DISPLAY CONFIGURATION  | |||||||
| 
 Primary  | 
 Alternate  | 
 J20  | 
 S4/1  | 
 S4/2  | 
 S4/3  | 
 S4/4  | 
 S4/5  | 
| 
 MDA  | 
 EGA w/CD 40x25  | 
 pins 1 & 2  | 
 on  | 
 on  | 
 on  | 
 on  | 
 off  | 
| 
 MDA  | 
 EGA w/CD 80x25  | 
 pins 1 & 2  | 
 off  | 
 on  | 
 on  | 
 on  | 
 off  | 
| 
 MDA  | 
 EGA w/ED 200 ln  | 
 pins 1 & 2  | 
 on  | 
 off  | 
 on  | 
 on  | 
 off  | 
| 
 MDA  | 
 EGA w/ED 350 ln  | 
 pins 1 & 2  | 
 off  | 
 off  | 
 on  | 
 on  | 
 off  | 
| 
 CGA 40x25  | 
 EGA w/MD  | 
 pins 2 & 3  | 
 on  | 
 on  | 
 off  | 
 on  | 
 off  | 
| 
 CGA 80x25  | 
 EGA w/MD  | 
 pins 2 & 3  | 
 off  | 
 on  | 
 off  | 
 on  | 
 off  | 
| 
 EGA w/CD 40x25  | 
 MDA or none  | 
 pins 1 & 2  | 
 on  | 
 off  | 
 off  | 
 on  | 
 off  | 
| 
 EGA w/CD 80X25  | 
 MDA or none  | 
 pins 1 & 2  | 
 off  | 
 off  | 
 off  | 
 on  | 
 off  | 
| 
 EGA w/ED 200 ln  | 
 MDA or none  | 
 pins 1 & 2  | 
 on  | 
 on  | 
 on  | 
 off  | 
 off  | 
| 
 EGA w/ED 350ln  | 
 MDA or none  | 
 pins 1 & 2  | 
 off  | 
 on  | 
 on  | 
 off  | 
 off  | 
| 
 EGA w/MD  | 
 CGA 40x25 or none  | 
 pins 2 & 3  | 
 on  | 
 off  | 
 on  | 
 off  | 
 off  | 
| 
 EGA w/MD  | 
 CGA 80x25 or none  | 
 pins 2 & 3  | 
 off  | 
 off  | 
 on  | 
 off  | 
 off  | 
| 
 All VGA modes  | 
 N/A  | 
 N/A  | 
 on  | 
 N/A  | 
 N/A  | 
 N/A  | 
 N/A  | 
| 
 Note: All pins designated should be placed in the closed position.  | |||||||
| 
 PARALLEL PORT CONFIGURATION  | ||||||||
| 
 LPT  | 
 IRQ  | 
 S2/1  | 
 S2/2  | 
 S2/3  | 
 S2/4  | 
 S2/5  | 
 S2/6  | |
| » | 
 1  | 
 IRQ7  | 
 on  | 
 off  | 
 off  | 
 N/A  | 
 off  | 
 on  | 
| 
 2  | 
 IRQ5  | 
 off  | 
 on  | 
 off  | 
 N/A  | 
 on  | 
 off  | |
| 
 3  | 
 IRQ7  | 
 off  | 
 off  | 
 on  | 
 N/A  | 
 off  | 
 on  | |
| 
 Disabled  | 
 N/A  | 
 off  | 
 off  | 
 off  | 
 N/A  | 
 off  | 
 off  | |
| 
 PRIMARY SERIAL PORT CONFIGURATION  | ||||||||
| 
 Port 1 (J4)  | 
 IRQ  | 
 S1/1  | 
 S1/2  | 
 S1/3  | 
 S1/4  | 
 S1/5  | 
 S1/6  | |
| » | 
 COM1  | 
 IRQ4  | 
 on  | 
 off  | 
 off  | 
 off  | 
 off  | 
 on  | 
| 
 COM2  | 
 IRQ3  | 
 off  | 
 on  | 
 off  | 
 off  | 
 on  | 
 off  | |
| 
 COM3  | 
 IRQ4  | 
 off  | 
 off  | 
 on  | 
 off  | 
 off  | 
 on  | |
| 
 COM4  | 
 IRQ3  | 
 off  | 
 off  | 
 off  | 
 on  | 
 on  | 
 off  | |
| 
 Disabled  | 
 N/A  | 
 off  | 
 off  | 
 off  | 
 off  | 
 off  | 
 off  | |
| 
 ALTERNATE SERIAL PORT CONFIGURATION  | ||||||||
| 
 Port 2 (J5)  | 
 IRQ  | 
 S3/1  | 
 S3/2  | 
 S3/3  | 
 S3/4  | 
 S3/5  | 
 S3/6  | |
| » | 
 COM2  | 
 IRQ3  | 
 off  | 
 on  | 
 off  | 
 off  | 
 on  | 
 off  | 
| 
 COM1  | 
 IRQ4  | 
 on  | 
 off  | 
 off  | 
 off  | 
 off  | 
 on  | |
| 
 COM3  | 
 IRQ4  | 
 off  | 
 off  | 
 on  | 
 off  | 
 off  | 
 on  | |
| 
 COM4  | 
 IRQ3  | 
 off  | 
 off  | 
 off  | 
 on  | 
 on  | 
 off  | |
| 
 Disabled  | 
 N/A  | 
 off  | 
 off  | 
 off  | 
 off  | 
 off  | 
 off  | |
| 
 IOCHRDY  | |||
| 
 Setting  | 
 J8  | 
 J9  | |
| » | 
 IOCHRDY signal comes from pin 21  | 
 open  | 
 closed  | 
| 
 IOCHRDY signal comes from pin 27  | 
 closed  | 
 open  | |