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# RANCHO TECHNOLOGY, INC.
RT10-AT
+------------------------------------------------------------+
+------------------------------------------------------------+
Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------+------------------|
| 50-pin SCSI connector-internal | J1 |
|-----------------------------------------+------------------|
| 50-pin SCSI connector-external | J2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O PORT ADDRESS ||
|-----------------------------------------------------------||
|Address | W1/1 | W1/2 | W1/3 |W1/4 | W1/5 |W1/6|W1/7|W1/8* ||
|--------+------+------+------+-----+------+----+----+------||
|» |340h |closed|closed|closed|open |closed|open|open|closed||
|--+-----+------+------+------+-----+------+----+----+------||
| |348h | open |closed|closed|open |closed|open|open|closed||
|--+-----+------+------+------+-----+------+----+----+------||
| |350h |closed| open |closed|open |closed|open|open|closed||
|--+-----+------+------+------+-----+------+----+----+------||
| |358h | open | open |closed|open |closed|open|open|closed||
|--+-----+------+------+------+-----+------+----+----+------||
| |360h |closed|closed| open |open |closed|open|open|closed||
|--+---------------------------------------------------------|
| |Note * Open disables Port Address |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS |
|------------------------------------------------------------|
| Address | W2/1 | W2/2 | W2/3 | W2/4 | W2/5 | W2/6* |
|-----------+-------+------+------+--------+--------+--------|
| » | D000h | pins | pins | pins | closed | open | closed |
| | | 1 & 2 | 2 & | 2 & | | | |
| | | | 3 | 3 | | | |
|---+-------+-------+------+------+--------+--------+--------|
| | D400h | pins | pins | pins | closed | open | closed |
| | | 1 & 2 | 2 & | 1 & | | | |
| | | | 3 | 2 | | | |
|---+-------+-------+------+------+--------+--------+--------|
| | D800h | pins | pins | pins | open | open | closed |
| | | 1 & 2 | 2 & | 2 & | | | |
| | | | 3 | 3 | | | |
|---+-------+-------+------+------+--------+--------+--------|
| | DC00h | pins | pins | pins | open | open | closed |
| | | 1 & 2 | 2 & | 1 & | | | |
| | | | 3 | 2 | | | |
|---+-------+-------+------+------+--------+--------+--------|
| | C000h | pins | pins | pins | closed | closed | closed |
| | | 1 & 2 | 2 & | 2 & | | | |
| | | | 3 | 3 | | | |
|---+-------+-------+------+------+--------+--------+--------|
| | C400h | pins | pins | pins | closed | closed | closed |
| | | 1 & 2 | 2 & | 1 & | | | |
| | | | 3 | 2 | | | |
|---+-------+-------+------+------+--------+--------+--------|
| | C800h | pins | pins | pins | open | closed | closed |
| | | 1 & 2 | 2 & | 2 & | | | |
| | | | 3 | 3 | | | |
|---+-------+-------+------+------+--------+--------+--------|
| | CC00h | pins | pins | pins | open | closed | closed |
| | | 1 & 2 | 2 & | 1 & | | | |
| | | | 3 | 2 | | | |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
| |
| * Open disables BIOS Address |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST (BUS MASTER) |
|------------------------------------------------------------|
| IRQ | W6/9 | W6/10 | W6/11 | W6/12 | W6/13 |
|---------+----------+---------+---------+---------+---------|
| IRQ15 | closed | open | open | open | open |
|---------+----------+---------+---------+---------+---------|
| IRQ14 | open | closed | open | open | open |
|---------+----------+---------+---------+---------+---------|
| IRQ12 | open | open | closed | open | open |
|---------+----------+---------+---------+---------+---------|
| IRQ11 | open | open | open | closed | open |
|---------+----------+---------+---------+---------+---------|
| IRQ10 | open | open | open | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ROM SIZE |
|------------------------------------------------------------|
| ROM Size | W3/pins 2 & 3 | W3/pins 4 & 5 |
|-----------------------+------------------+-----------------|
| BIOS ROM size is 8KB | open | open |
|-----------------------+------------------+-----------------|
| BIOS ROM size is 16KB | closed | open |
|-----------------------+------------------+-----------------|
| BIOS ROM size is 32KB | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL (HOST) |
|------------------------------------------------------------|
| Channel | W4/jumpers 7 & | W4/jumpers 8 & | W4/jumpers 9 & |
| | 10 | 11 | 12 |
|---------+----------------+----------------+----------------|
| 1 | closed | open | open |
|---------+----------------+----------------+----------------|
| 2 | open | closed | open |
|---------+----------------+----------------+----------------|
| 3 | open | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST (HOST) |
|------------------------------------------------------------|
| IRQ | W4/1 | W4/2 | W4/3 | W4/4 | W4/5 | W4/6 |
|------+--------+--------+--------+--------+--------+--------|
| IRQ3 | closed | open | open | open | open | open |
|------+--------+--------+--------+--------+--------+--------|
| IRQ4 | open | closed | open | open | open | open |
|------+--------+--------+--------+--------+--------+--------|
| IRQ5 | open | open | closed | open | open | open |
|------+--------+--------+--------+--------+--------+--------|
| IRQ6 | open | open | open | closed | open | open |
|------+--------+--------+--------+--------+--------+--------|
| IRQ7 | open | open | open | open | closed | open |
|------+--------+--------+--------+--------+--------+--------|
| IRQ9 | open | open | open | open | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| READ PORT CONFIGURATION JUMPERS - JP5 |
|------------------------------------------------------------|
| Setting | D0 | D1 | D2 | D3 | D4 | D5 |
|------------------+------+------+------+------+------+------|
|Address is 340h | open | open | N/A | N/A | N/A | N/A |
|------------------+------+------+------+------+------+------|
|Address is 328h |closed| open | N/A | N/A | N/A | N/A |
|------------------+------+------+------+------+------+------|
|Address is 310h | open |closed| N/A | N/A | N/A | N/A |
|------------------+------+------+------+------+------+------|
|Address is 300h |closed|closed| N/A | N/A | N/A | N/A |
|------------------+------+------+------+------+------+------|
|RAM address. is | N/A | N/A | open | N/A | N/A | N/A |
|0:4B0h | | | | | | |
|------------------+------+------+------+------+------+------|
|RAM address. is | N/A | N/A |closed| N/A | N/A | N/A |
|0:300h | | | | | | |
|------------------+------+------+------+------+------+------|
|Data transfer | N/A | N/A | N/A | open | open | N/A |
|polled I/O | | | | | | |
|------------------+------+------+------+------+------+------|
|DREQ5/DACK5 (HS) | N/A | N/A | N/A |closed| open | N/A |
|------------------+------+------+------+------+------+------|
|DREQ6/DACK6 (HS) | N/A | N/A | N/A | open |closed| N/A |
|------------------+------+------+------+------+------+------|
|DREQ3/DACK3 | N/A | N/A | N/A |closed|closed| N/A |
|------------------+------+------+------+------+------+------|
|Parity, Inquiry & | N/A | N/A | N/A | N/A | N/A | open |
|Verify Cmd. | | | | | | |
|enabled | | | | | | |
|------------------+------+------+------+------+------+------|
|Parity, Inquiry & | N/A | N/A | N/A | N/A | N/A |closed|
|Verify Cmd. | | | | | | |
|disabled | | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL (BUS MASTER) JUMPERS - W6 |
|------------------------------------------------------------|
| Channel | Jumpers 1 & | Jumpers 2 | Jumpers 3 | Jumpers 4 |
| | 5 | & 6 | & 7 | & 8 |
|---------+--------------+-----------+-----------+-----------|
| 7 | closed | open | open | open |
|---------+--------------+-----------+-----------+-----------|
| 6 | open | closed | open | open |
|---------+--------------+-----------+-----------+-----------|
| 5 | open | open | closed | open |
|---------+--------------+-----------+-----------+-----------|
| 0 | open | open | open | closed |
+------------------------------------------------------------+