DISTRIBUTED PROCESSING TECHNOLOGY
PM2011/95 - EISA
|
Card Type |
Hard drive controller |
|
Maximum Onboard Memory |
16.5MB |
|
Hard Drives supported |
Up to 7 SCSI devices |
|
Floppy drives supported |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
|
Data Bus |
EISA |
|
Card Size |
Full-length, full-height |
|
CONNECTIONS | |||
|
Function |
Location |
Function |
Location |
|
50-pin SCSI connector - internal |
CN1 |
Memory module connector |
CN7 |
|
34-pin cable connector - floppy drive |
CN2 |
Disk mirroring module connector |
CN8 |
|
50-pin SCSI connector - external |
CN3 |
Disk mirroring module connector |
CN9 |
|
Cache module connector |
CN4 |
Memory expansion board cable connector |
CN10 |
|
Cache module connector |
CN5 |
Drive active LED |
CN11 |
|
Memory module connector |
CN6 | ||
|
Note:Exact size and orientation of CN4-CN11 is unidentified. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Address lines LA17-19 and SA17-19 are driven |
Y19 |
Closed | |
|
Only address lines LA17-19 are driven |
Y19 |
Open | |
|
Floppy drive interface enabled |
Y20 |
Open | |
|
Floppy drive interface disabled |
Y20 |
Closed | |
|
EPROM size 256KB enabled |
Y23 |
Pins 2 & 3 closed | |
|
EPROM size 512KB enabled |
Y23 |
Pins 1 & 2 closed | |
|
Bus mastering enabled |
Y24 |
Open | |
|
Bus mastering disabled |
Y24 |
Closed | |
|
Bus master DMA speed 4MB/sec enabled |
Y27 |
Closed | |
|
Bus master DMA speed 5MB/sec enabled |
Y27 |
Open | |
|
Floppy drive interface 3F0h address enabled |
Y34 |
Open | |
|
Floppy drive interface 370h address enabled |
Y34 |
Closed | |
|
Factory configured - do not alter |
Y38 |
Unidentified | |
|
SCSI ID SELECTION | ||||
|
SCSI ID |
Y18 |
Y25 |
Y26 | |
|
0 |
Closed |
Closed |
Closed | |
|
1 |
Closed |
Open |
Closed | |
|
2 |
Open |
Closed |
Closed | |
|
3 |
Open |
Open |
Closed | |
|
4 |
Closed |
Closed |
Open | |
|
5 |
Closed |
Open |
Open | |
|
6 |
Open |
Closed |
Open | |
|
7 |
Open |
Open |
Open | |
|
DMA CHANNEL SELECTION | |||
|
Channel |
Y31 |
Y32 | |
|
0 |
Open |
Open | |
|
5 |
Closed |
Closed | |
|
6 |
Closed |
Open | |
|
7 |
Open |
Closed | |
|
BIOS ADDRESS SELECTION | |||
|
Address |
Y36 |
Y37 | |
|
C8000h |
Closed |
Closed | |
|
D8000h |
Closed |
Open | |
|
DC000h |
Open |
Closed | |
|
Disabled |
Open |
Open | |
|
BASE I/O ADDRESS SELECTION | |||
|
Address |
Y33 |
Y35 | |
|
1F0h |
Closed |
Closed | |
|
170h |
Open |
Closed | |
|
230h |
Open |
Open | |
|
330h |
Closed |
Open | |
|
INTERRUPT SELECTION | ||
|
IRQ |
Y29 |
Y30 |
|
IRQ12 |
Open |
Closed |
|
IRQ14 |
Closed |
Closed |
|
IRQ15 |
Closed |
Open |
|
Disabled |
Open |
Open |
|
MEMCS16 ISA BUS SIGNAL SELECTION | ||
|
Setting |
Y21 |
Y28 |
|
Ignore signal |
Open |
Closed |
|
Decode signal |
Closed |
Open |
|
DIAGNOSTIC LED(S) | |||
|
LED |
Color |
Status |
Condition |
|
1 - 8 |
Unidentified |
Rotate in bit pattern |
Controller in Idle state |
|
Controller in Active state: | |||
|
1 |
Unidentified |
On |
Busy |
|
2 |
Unidentified |
On |
Computer bus transfer to controller |
|
3 |
Unidentified |
On |
Computer bus transfer from controller |
|
4 |
Unidentified |
On |
Cache hit |
|
5 |
Unidentified |
On |
Disk read-ahead active |
|
6 |
Unidentified |
On |
Disk read |
|
7 |
Unidentified |
On |
Disk write |
|
8 |
Unidentified |
On |
Controller reset |
|
9 |
Unidentified |
On |
Controller interrupt pending to computer |
|
10 |
Unidentified |
On |
DRQ asserted to computer |
|
1 - 4, 5 - 8 |
Unidentified |
Blinking together alternately |
Controller in Fatal Trap state (will not let computer boot) |
|
Controller in power up state (3 stages): | |||
|
1 - 10 |
Unidentified |
On |
(1) Display amount of cache in a binary pattern, with LED 1 as the least significant binary digit. |
|
1, 2, 5, 6 |
Unidentified |
Blinking together alternately |
(2) Waiting period |
|
2, 3, 6, 7 |
Unidentified |
Blinking together alternately |
(2) Waiting period |
|
1, 3, 5, 7 |
Unidentified |
Blinking together alternately |
(3) Contact is being established with SCSI drives |
|
2, 4, 6 |
Unidentified |
Blinking together alternately |
(3) Contact is being established with SCSI drives |
|
MISCELLANEOUS TECHNICAL NOTES |
|
The controller cannot use caching without the CM401X caching module. The MM401X memory modules cannot operate without the caching module. The memory modules come in 2MB and 4MB size but can only be installed one at the time unless the MX401X expansion card is connected to the controller. DM401X is the disk mirroring module which provide RAID 1 disk mirroring capability. |