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1210A (VER. 2)

XEBEC AMERICA

1210A (VER. 2)

Data Bus

8-bit ISA

Card Size

Full-length, full-height card

Hard Drives supported

Two ST-506/412(MFM) drives

Floppy drives supported

None

CONNECTIONS

Function

Location

Function

Location

34-pin cable connector - hard drive

J1

20-pin data cable connector - drive 2

J3

20-pin data cable connector - drive 1

J2

Factory test connector - do not alter

J4

USER CONFIGURABLE SETTINGS

Function

Label

Position

Host ROM enabled

JP4/8

Closed

 

Host ROM disabled

JP4/8

Open

Note: When multiple controllers exist, one of these controllers must disable the host ROM.

DMA CHANNEL SELECTION

Channel

JP2/1

JP2/2

JP2/3

JP5/1

JP5/2

JP5/3

1

Closed

Open

Open

Closed

Open

Open

2

Open

Closed

Open

Open

Closed

Open

3

Open

Open

Closed

Open

Open

Closed

BIOS ADDRESS SELECTION

Address

JP1/1

JP1/2

JP1/3

JP1/4

300h

Closed

Closed

Closed

Closed

304h

Open

Closed

Closed

Closed

308h

Closed

Open

Closed

Closed

30Ch

Open

Open

Closed

Closed

310h

Closed

Closed

Open

Closed

314h

Open

Closed

Open

Closed

318h

Closed

Open

Open

Closed

31Ch

Open

Open

Open

Closed

320h

Closed

Closed

Closed

Open

324h

Open

Closed

Closed

Open

328h

Closed

Open

Closed

Open

32Ch

Open

Open

Closed

Open

330h

Closed

Closed

Open

Open

334h

Open

Closed

Open

Open

338h

Closed

Open

Open

Open

33Ch

Open

Open

Open

Open

HOST ROM ADDRESS SELECTION

Address

JP4/1

JP4/2

JP4/3

JP4/4

JP4/5

JP4/6

JP4/7

00000h

Closed

Closed

Closed

Closed

Closed

Closed

Closed

02000h

Closed

Closed

Closed

Closed

Closed

Closed

Open

04000h

Closed

Closed

Closed

Closed

Closed

Open

Closed

06000h

Closed

Closed

Closed

Closed

Closed

Open

Open

08000h

Closed

Closed

Closed

Closed

Open

Closed

Closed

F6000h

Open

Open

Open

Open

Closed

Open

Open

F8000h

Open

Open

Open

Open

Open

Closed

Closed

FA000h

Open

Open

Open

Open

Open

Closed

Open

FC000h

Open

Open

Open

Open

Open

Open

Closed

FE000h

Open

Open

Open

Open

Open

Open

Open

Note: A total of 128 address settings are available. The jumpers are a binary representation of the decimal memory addresses. JP4/1 is the Most Significant Bit and JP4/7 is the Least Significant Bit. The jumpers have the following decimal values: JP4/7= 2000h, JP4/6=4000h, JP4/5=8000h, JP4/4=10000h, JP4/3=20000h, JP4/2=40000h, JP4/1=80000h. Turn on the switches and add the values of the switches to obtain the correct memory address. (Closed = 0, Open=1)

INTERRUPT SELECTION

Setting

JP3/1

JP3/2

JP3/3

JP3/4

JP3/5

JP3/6

2

Closed

Open

Open

Open

Open

Open

3

Open

Closed

Open

Open

Open

Open

4

Open

Open

Closed

Open

Open

Open

5

Open

Open

Open

Closed

Open

Open

6

Open

Open

Open

Open

Closed

Open

7

Open

Open

Open

Open

Open

Closed