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# CORE INTERNATIONAL, INC.
CNT-HCR CONTROLLER
+------------------------------------------------------------+
+------------------------------------------------------------+
Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Two MFM ST506/ST412 drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, 1.44MB
drives
Sector interleave: 1:1
Maximum heads/cyl.: 16 heads and 2048 cylinders
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------------------+----------------|
| 34-pin control cable connector-hard drive | CN2 |
|-------------------------------------------+----------------|
| 20-pin data cable connector-drive 0 | CN3 |
|-------------------------------------------+----------------|
| 20-pin data cable connector-drive 1 | CN4 |
|-------------------------------------------+----------------|
| 4-pin connector-drive active LED | CN5 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONTROLLER POSITIONING |
|------------------------------------------------------------|
| Select | JP18 | JP19 |
|--------------------------+----------------+----------------|
| » | First | open | open |
|--------+-----------------+----------------+----------------|
| | Second* | open | closed |
|--------+-----------------+----------------+----------------|
| | Third* | closed | open |
|--------+-----------------+----------------+----------------|
| | Fourth* | closed | closed |
|------------------------------------------------------------|
| Note:Up to four HCR controllers may be installed in a |
| system |
| |
| *The BIOS must be disabled on all but the first HCR |
| controller |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|--------------------------------------+-----------+---------|
| » | Sector size is 512 Bytes (Other | JP10 and | open |
| | sizes not supported) | JP11 | |
|---+----------------------------------+-----------+---------|
| » | Floppy drive enabled | JP14 | open |
|---+----------------------------------+-----------+---------|
| | Floppy drive disabled | JP14 | closed |
|---+----------------------------------+-----------+---------|
| » | BIOS address is C8000h | JP15 | open |
| | | | |
| | (Controller initializes after | | |
| | POST) | | |
|---+----------------------------------+-----------+---------|
| | BIOS address is CA000h | JP15 | closed |
| | | | |
| | (Controller initializes during | | |
| | POST) | | |
|---+----------------------------------+-----------+---------|
| » | BIOS enabled | JP16 | open |
|---+----------------------------------+-----------+---------|
| | BIOS disabled | JP16 | closed |
|---+----------------------------------+-----------+---------|
| » | I/O Port address is 320h | JP17 | open |
|---+----------------------------------+-----------+---------|
| | I/O Port address is 1A0h | JP17 | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRIVE CONFIGURATION JUMPERS |
|------------------------------------------------------------|
| | Drv. 0 | Drv. 1 | |
|-----------+---------+--------+-----------------------------|
| | JP7 | JP8 | JP9 | JP4 | JP5 | JP6 |
|-----------+---------+--------+------+------+--------+------|
| HC Series | open | closed | open | open | closed | open |
|-----------+---------+--------+------+------+--------+------|
| AT Plus | open | open | open | open | open | open |
|-----------+---------+--------+------+------+--------+------|
| OPTIMA | open | open | open | open | open | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRIVE CONFIGURATION |
|------------------------------------------------------------|
| Model | Hds | Cyls | JP20 | JP21 | JP22 | JP23 |
|--------+------+--------+--------+--------+--------+--------|
| HC | ESDI | closed | closed | closed | closed | |
| Series | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| ATplus | 5 | 924 | open | closed | open | open |
| 40MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| ATplus | 5 | 988 | closed | open | open | closed |
| 43MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| ATplus | 7 | 733 | open | closed | closed | open |
| 44MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| ATplus | 9 | 924 | open | closed | open | closed |
| 72MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| ATplus | 9 | 1072 | closed | open | open | open |
| 80MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| OPTIMA | 5 | 963 | closed | open | closed | closed |
| 40MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| OPTIMA | 7 | 733 | open | closed | closed | open |
| 44MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| OPTIMA | 9 | 918 | closed | open | closed | open |
| 70MB | | | | | | |
|--------+------+--------+--------+--------+--------+--------|
| OPTIMA | 9 | 1072 | closed | open | open | open |
| 80MB | | | | | | |
|------------------------------------------------------------|
| Note:If an HC Series drive is being used with an ATplus or |
| OPTIMA drive, the jumpers must be set for the latter |
| and modifications to the data cable are required. If two |
| ATplus or OPTIMA drives are used, they must be the |
| same type.) |
+------------------------------------------------------------+