TEXT View Source
# OMNICOMP GRAPHICS CORPORATION
TIGA FOR THE TEXAN ET
Category Video
Video Types Supported XVGA
Video Processor TMS34020
Highest Resolution Supported 1600 x 1280
Data Bus Type 16-bit ISA
Memory Type DRAM/VRAM
Maximum Onboard Memory 8MB/4MB
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| Red signal | CN1 | Vertical sync | CN5 |
| connector | | connector | |
|-----------------+----------+--------------------+----------|
| Green signal | CN2 | Frequency | CN6 |
| connector | | connector | |
|-----------------+----------+--------------------+----------|
| Blue signal | CN3 | VGA pass through | CN7 |
| connector | | connector | |
|-----------------+----------+--------------------+----------|
| Horizontal sync | CN4 | Serial port(s) | CN8 |
| connector | | daughter-board | |
| | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | SW2/1 | SW2/2 | SW2/3 | SW2/4 | SW2/5 | SW2/6 |
|-----------+--------+-------+-------+-------+-------+-------|
| » | 300h | Off | Off | On | On | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 200h | Off | On | On | On | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 210h | Off | On | On | On | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 220h | Off | On | On | On | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 230h | Off | On | On | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 240h | Off | On | On | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3B0h | Off | Off | Off | On | Off | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3C0h | Off | Off | Off | Off | On | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3D0h | Off | Off | Off | Off | On | Off |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3E0h | Off | Off | Off | Off | Off | On |
|---+-------+--------+-------+-------+-------+-------+-------|
| | 3F0h | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note: A total of 32 base address settings are available. |
| The jumpers are a binary representation of the decimal |
| memory addresses. Switch SW2/1 is the Most Significant |
| Bit and switch SW2/6 is the Least Significant Bit. The |
| switches have the following decimal values: switch |
| SW2/1=512, SW2/2=256, SW2/3=128,SW2/4=64, SW2/5=32, |
| SW2/6=16. Turn off the switches and add the values of |
| the switches that are off to obtain the correct memory |
| address. (Off=1, On=0) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VGA PASS THROUGH CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW2/7 |
|---------------------------------------+--------------------|
| » | Enabled | Off |
|---------------+-----------------------+--------------------|
| | Disabled | On |
|------------------------------------------------------------|
| Note: If the VGA pass through connector is not connected |
| to the board in the system, switch SW2/7 must be turned |
| On. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNC ON GREEN CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW2/8 |
|-------------------------------+----------------------------|
| Disabled | On |
|-------------------------------+----------------------------|
| Enabled | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SELF TEST & DEMONSTRATION CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW1 | SW3/1 |
|--------------------+-----------------------+---------------|
| Enabled | Press | On |
|--------------------+-----------------------+---------------|
| Disabled | Only press one time | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| POWER UP RESOLUTION CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW3/2 | SW3/3 | SW3/4 |
|------------------------------+---------+---------+---------|
| 640 x 512 color stereoscopic | Off | Off | Off |
|------------------------------+---------+---------+---------|
| 1024 x 960 interlaced | On | Off | Off |
| Nucolor | | | |
|------------------------------+---------+---------+---------|
| 1024 x 1024 mono | Off | On | Off |
| stereoscopic | | | |
|------------------------------+---------+---------+---------|
| 640 x 480 Nucolor | On | On | Off |
|------------------------------+---------+---------+---------|
| 1280 x 1024 60Hz | Off | Off | On |
|------------------------------+---------+---------+---------|
| 1600 x 1280 60Hz | On | Off | On |
|------------------------------+---------+---------+---------|
| EEPROM | On | On | On |
|------------------------------------------------------------|
| Note: Stereoscopic and Nucolor modes refer to the |
| Tektronix Stereoscopic and NuColor monitors. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM MEMORY SELECTION |
|------------------------------------------------------------|
| Setting | J3 | JP1 |
|------------------------+--------------+--------------------|
| » | 1MB or 2MB DRAM | Open | Pins 1 & 2 closed |
|---+--------------------+--------------+--------------------|
| | 4MB or 8MB DRAM | Closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EEPROM PROGRAMMING CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP7 |
|----------------------------+-------------------------------|
| » | +12V | Pins 2 & 3 closed |
|-----+----------------------+-------------------------------|
| | +5V | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EEPROM POWER UP CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP8 |
|---------------------------------+--------------------------|
| » | Write protected | Pins 1 & 2 closed |
|---+-----------------------------+--------------------------|
| | Not write protected | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 1 & 2 MBIT EEPROM DEVICES CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP10 |
|------------------------------+-----------------------------|
| » | Enabled | Pins 1 & 2 closed |
|-------+----------------------+-----------------------------|
| | Disabled | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS TYPE SELECTION |
|------------------------------------------------------------|
| Type | J1 |
|--------------------------------+---------------------------|
| » | 16-bit | Closed |
|---+----------------------------+---------------------------|
| | 8-bit | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VPU CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP2 |
|-----------------------------------+------------------------|
| » | TMS34020 not halted | Open |
|---+-------------------------------+------------------------|
| | TMS34020 halted | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP3 | JP4 | JP5 |
|--------------+-------------------+------------+------------|
| » | Disabled | Open | Open | Open |
|---+----------+-------------------+------------+------------|
| | 2/9 | Pins 2 & 3 closed | Open | Open |
|---+----------+-------------------+------------+------------|
| | 5 | Pins 1 & 2 closed | Open | Open |
|---+----------+-------------------+------------+------------|
| | 10 | Open | Pins 2 & 3 | Open |
| | | | closed | |
|---+----------+-------------------+------------+------------|
| | 11 | Open | Pins 1 & 2 | Open |
| | | | closed | |
|---+----------+-------------------+------------+------------|
| | 14 | Open | Open | Pins 2 & 3 |
| | | | | closed |
|---+----------+-------------------+------------+------------|
| | 15 | Open | Open | Pins 1 & 2 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 1MB | (1) 256K x 36 |
|----------------------------+-------------------------------|
| 2MB | (1) 512K x 36 |
|----------------------------+-------------------------------|
| 4MB | (1) 1M x 36 |
|----------------------------+-------------------------------|
| 8MB | (1) 2M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VRAM CONFIGURATION |
|------------------------------------------------------------|
| Note: 2MB of the 4MB of VRAM on board is located on the |
| back of the board. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY CONFIGURED - DO NOT ALTER |
|------------------------------------------------------------|
| Jumper | Position |
|-----------------------------+------------------------------|
| J2 | Open |
|-----------------------------+------------------------------|
| JP9 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAGNOSTIC LED(S) |
|------------------------------------------------------------|
| LED1 | LED1 | LED2 | LED2 | Condition |
| Color | Status | Color | Status | |
|--------+----------+--------+----------+--------------------|
| Green | On | Red | On | DRAM or serial |
| | | | | port test |
| | | | | initiated |
|--------+----------+--------+----------+--------------------|
| Green | On | Red | Off | VRAM test |
| | | | | initiated |
|--------+----------+--------+----------+--------------------|
| Green | Off | Red | Off | RAMDAC or FPU test |
| | | | | initiated |
|--------+----------+--------+----------+--------------------|
| Green | Off | Red | On | GSP test initiated |
|--------+----------+--------+----------+--------------------|
| Green | Blinking | Red | Off | Test has passed |
|--------+----------+--------+----------+--------------------|
| Green | Off | Red | Blinking | Test has failed |
+------------------------------------------------------------+