UN-1075 16 bit Disk controller & I/O card
INFORMTECH INTERNATIONAL, INC.
Data bus : 16-bit, ISA
Size : Half-length, half-height card
Hard drives supported : Two IDE (AT) Interface drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB drives
== CONNECTORS =============================================================
40-pin IDE (AT) Interface connector (internal) JP1
16-pin game port JP2
10-pin serial port 1 connector (internal) JP3
10-pin serial port 2 connector (external) JP4
34-pin floppy drive connector (internal) JP5
HDD LED connector JP8
DB-25 parallel port connector (external) JP15
== USER CONFIGURABLE SETTINGS =============================================
Function Location Setting
IDEIOR path = ATBUS IOR J1 pins 2+3 closed
IDEIOR path = W83758P - IOROP J1 pins 1+2 closed
IDEIOW path = ATBUS IOW J2 pins 2+3 closed
IDEIOW path = W83758P - IOWOP J2 pins 1+2 closed
Floppy drive A & B normal mode JP6/1 pins 1+2 closed
Floppy drive A & B change mode JP6/1 pins 2+3 closed
Floppy drive address = 3F0h-3F7h JP6/2 pins 2+3 closed
Floppy drive address = 370h-377h JP6/2 pins 1+2 closed
IDE bus enabled JP6/3 pins 1+2 closed
IDE bus disabled JP6/3 pins 2+3 closed
HDD address = 3F6h, 3F7h, 1F0h-1F7h JP6/4 pins 2+3 closed
HDD address = 376h, 377h, 170h-177h JP6/4 pins 1+2 closed
Floppy drive controller enabled JP6/5 pins 1+2 closed
Floppy drive controller disabled JP6/5 pins 2+3 closed
Game port enabled JP16 closed
Game port disabled JP16 open
== SERIAL PORT 1 (JP3) CONFIGURATION ======================================
COM/address JP9/1 JP9/2
COM1/3F8h pins 1+2 pins 2+3
COM3/3E8h pins 2+3 pins 1+2
COM4/2E8h pins 1+2 pins 1+2
disabled pins 2+3 pins 2+3
== SERIAL PORT 1 INTERRUPT SELECTION ======================================
JP12/1 JP12/2 JP12/3
IRQ4 closed open open
IRQ3 open closed open
IRQ5 open open closed
== SERIAL PORT 2 (JP4) CONFIGURATION ======================================
COM/address JP9/3 JP9/4
COM2/2F8h pins 1+2 pins 2+3
COM3/3E8h pins 1+2 pins 1+2
COM4/2E8h pins 2+3 pins 1+2
disabled pins 2+3 pins 2+3
== SERIAL PORT 2 INTERRUPT SELECTION ======================================
JP12/4 JP12/5 JP12/6
IRQ3 closed open open
IRQ4 open closed open
IRQ5 open open closed
== PARALLEL PORT (JP15) CONFIGURATION =====================================
LPT/address JP9/5 JP9/6
LPT1/378h pins 2+3 pins 1+2
LPT2/278h pins 1+2 pins 2+3
LPT3/38Ch pins 1+2 pins 1+2
disabled pins 2+3 pins 2+3
== PARALLEL PORT INTERRUPT SELECTION ======================================
JP12/7 JP12/8
IRQ7 closed open
IRQ5 open closed
IMG UN-1075 1-schema.png
IMG UN-1075 2-front.jpg
IMG UN-1075 3-back.jpg