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Section Two
2.6
SYSTEM REQUIREMENTS
The ACB-232X was designed
to
be installed in an IBM PC AT-compatible
personal computer; thus, it requires the same system resources as the IBM AT
hard disk controller.
TABLE 2-l. ACB-232X SYSTEM MEMORY MAP
110 Ports
Hard Disk
- Primary
1F0,1Fl,lF2,lF3,lF4,lF5,lF6,1F7,3F6,3F7
-Secondary
170,171,172,173,174,175,176,177,376,377
*Floppy Disk
- Primary
-Secondary
If the BIOS is enabled:
3F0,2Fl ,3F2,3F3,3F4,3FF5
370,371,372,373,374,375
BIOS Address
- Primary 16 Kbytes C8000H- CBFFFH
- Secondary 16 Kbytes CCOOOH-CFFFFH
Temporary Drive
Parameters Table Interrupt locations 60H through 67H
*
ACB-2322 only
ACB-232X
2-4
Hardware Installation
Drive Power
The IBM PC AT internal power supply does have sufficient current to power
most hard disk drives in addition to its present load. Check with your drive
vendor for an accurate estimate of its specific power requirements.
TABLE 2-2. ACB-2322 POWER REQUIREMENTS
(fypical)
+5V P o w e r - - - - - - >
-5VPower
>
+12V Power
>
-12V Power
>
1.7 Amp
Not Used
90mA
50mA
TABLE 2-3. ACB-2320 POWER REQUIREMENTS
(fypical)
+5V Power------>.
-5VPower
>
+12V Power
>
-12V Power
>
1.1 Amp
Not Used
Not Used
Not Used
CAUTION: THE VALUES FOR THE POWER REQUIREMENTS WERE
DETERMINED BY ACTUAL MEASUREMENTS IN AN IBM PC AT
WHILE THE CONTROLLER WAS READING A HARD DISK. IF THESE
VALUES ARE TO BE USED TO DESIGN THE CONTROLLER INTO A
SPECIFIC APPLICATION, AT LEAST 20% SHOULD BE ADDED TO
THESE LISTED VALUES AS A SAFETY MARGIN.
2-5
adaptec
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