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# TMC RESEARCH CORPORATION
CAT48AF, CAP48AF
Processor 804846SX/SL80486SX/SL80486SX2/80486DX/SL80486DX/
TI486DX2/AM486/AM486+/80486DX2/SL80486DX2/TI486DX4/
80486DX4/P24D/P24T/CX5X86
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed 100(internal)/120(internal)MHz
Chip Set ALI
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 128/256/512KB
BIOS Unidentified
Dimensions Unidentified
I/O Floppy drive interface, IDE interfaces (2), parallel port, PS/2
Options mouse interface, serial ports (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+------------------+-----------|
| IDE interface 1 | J1 | Turbo switch | JP1 pins |
| | | | 7 & 17 |
|------------------+----------+------------------+-----------|
| IDE interface 2 | J2 | Turbo LED | JP1 pins |
| | | | 8 & 18 |
|------------------+----------+------------------+-----------|
| Floppy drive | J3 | Reset switch | JP1 pins |
| interface | | | 9 & 19 |
|------------------+----------+------------------+-----------|
| Parallel port | J4 | IDE interface | JP1 pins |
| | | LED | 10 & 20 |
|------------------+----------+------------------+-----------|
| Serial port 1 | J5 | Power LED & | JP1 pins |
| | | keylock | 11 - 15 |
|------------------+----------+------------------+-----------|
| Serial port 2 | J6 | PS/2 mouse | JP27 |
| | | interface | |
|------------------+----------+------------------+-----------|
| Speaker | JP1 pins | Auxiliary | KB1 |
| | 1 - 4 | keyboard | |
| | | connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | CMOS memory normal operation | JP19 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JP19 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | System reset when watch dog timer | JP20 | Pins 1 & 2 |
| | times out | | closed |
|---+-----------------------------------+-------+------------|
| | Activate NMI to CPU when watch | JP20 | Pins 2 & 3 |
| | dog timer times out | | closed |
|---+-----------------------------------+-------+------------|
| | Watch dog timer disabled | JP20 | Open |
|---+-----------------------------------+-------+------------|
| » | Watch dog timer time out select 1 | JP22 | Open |
| | second | | |
|---+-----------------------------------+-------+------------|
| | Watch dog timer time out select | JP22 | Closed |
| | 500ms | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 512K x | None | None | None |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 512K x | None | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 512K x | None | (1) 512K x | None |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 6MB | (1) 512K x | None | (1) 1M x | None |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 2M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 512K x | None | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 512K x | None | (1) 2M x | None |
| | 36 | | 36 | |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | None | (1) 2M x | None |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | None | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | None | (1) 2M x | None |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 16M x | None | None | None |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | None | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | None | (1) 8M x | None |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 32M x | None | None | None |
| | 36 | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 8K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 64K x 8 | (1) 16K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP13 | JP14 |
|------------------+--------------------+--------------------|
| 128KB | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 256KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP15 | JP16 | JP17 | JP18 |
|----------+-------------------+---------+---------+---------|
| 25MHz | Pins 1 & 2 closed | Open | Open | Open |
|----------+-------------------+---------+---------+---------|
| 33MHz | Pins 1 & 2 closed | Closed | Closed | Open |
|----------+-------------------+---------+---------+---------|
| 40MHz | Pins 1 & 2 closed | Closed | Open | Open |
|----------+-------------------+---------+---------+---------|
| 50iMHz | Pins 1 & 2 closed | Open | Open | Open |
|----------+-------------------+---------+---------+---------|
| 50MHz | Pins 2 & 3 closed | Open | Closed | Closed |
|----------+-------------------+---------+---------+---------|
| 66iMHz | Pins 1 & 2 closed | Closed | Closed | Open |
|----------+-------------------+---------+---------+---------|
| 75iMHz | Pins 1 & 2 closed | Open | Open | Open |
|----------+-------------------+---------+---------+---------|
| 80iMHz | Pins 1 & 2 closed | Closed | Open | Open |
|----------+-------------------+---------+---------+---------|
| 100iMHz | Pins 1 & 2 closed | Closed | Closed | Open |
|----------+-------------------+---------+---------+---------|
| 120iMHz | Pins 1 & 2 closed | Closed | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP2 |
|----------------------------+-------------------------------|
| » | 3.45v | Pins 1 & 2 closed |
|---+------------------------+-------------------------------|
| | 4v | Pins 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 5v | Pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP21 | JP23 |
|------------------+--------------------+--------------------|
| | 1 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|----+-------------+--------------------+--------------------|
| » | 3 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 SELECTION |
|------------------------------------------------------------|
| Setting | JP25 | JP26 |
|--------------------+-------------------+-------------------|
| Used as COM2 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|--------------------+-------------------+-------------------|
| Used as IR | Pins 2 & 3 closed | Pins 2 & 3 closed |
| connector | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP3 | JP4 | JP5 | JP6 | JP7 | JP8 |
|----------------+-------+------+-------+------+------+------|
| 80486SX | Open | 1 & | Open | 1 & | 1 & | Open |
| | | 2 | | 2 | 2 | |
|----------------+-------+------+-------+------+------+------|
| SL80486SX | 3 & 4 | 3 & | 3 & 4 | 1 & | 1 & | Open |
| | | 4 | | 2 | 2 | |
|----------------+-------+------+-------+------+------+------|
| SL80486SX2 | 3 & 4 | 3 & | 3 & 4 | 1 & | 1 & | Open |
| | | 4 | | 2 | 2 | |
|----------------+-------+------+-------+------+------+------|
| 80486DX | Open | 1 & | Open | 2 & | 1 & | 2 & |
| | | 2 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| SL80486DX | 3 & 4 | 3 & | 3 & 4 | 2 & | 1 & | 2 & |
| | | 4 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| CX486M7 | 5 & 6 | 5 & | 5 & 6 | 2 & | 1 & | 2 & |
| | | 6 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| TI486DX2 | 5 & 6 | 5 & | 5 & 6 | 2 & | 1 & | 2 & |
| | | 6 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| AM486-66/80 | Open | 1 & | Open | 2 & | 1 & | 2 & |
| | | 2 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| AM486-100 | Open | 1 & | Open | 2 & | 1 & | 2 & |
| | | 2 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| AM486+/66/80 | 3 & 4 | 3 & | 3 & 4 | 2 & | 2 & | 2 & |
| | | 4 | | 3 | 3 | 3 |
|----------------+-------+------+-------+------+------+------|
| AM486+/100/120 | 3 & 4 | 3 & | 3 & 4 | 2 & | 2 & | 2 & |
| | | 4 | | 3 | 3 | 3 |
|----------------+-------+------+-------+------+------+------|
| 80486DX2 | Open | 1 & | Open | 2 & | 1 & | 2 & |
| | | 2 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| SL80486DX2 | 3 & 4 | 3 & | 3 & 4 | 2 & | 1 & | 2 & |
| | | 4 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| TI486DX4 | 5 & 6 | 5 & | 5 & 6 | 2 & | 1 & | 2 & |
| | | 6 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| 80486DX4 | 3 & 4 | 3 & | 3 & 4 | 2 & | 1 & | 2 & |
| | | 4 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| P24D | 3 & 4 | 3 & | 3 & 4 | 2 & | 2 & | 2 & |
| | | 4 | | 3 | 3 | 3 |
|----------------+-------+------+-------+------+------+------|
| P24T | 3 & 4 | 3 & | 3 & 4 | 2 & | 2 & | 1 & |
| | | 4 | | 3 | 3 | 2 |
|----------------+-------+------+-------+------+------+------|
| CX5X86 | 3 & 4 | 3 & | 3 & 4 | 2 & | 1 & | 2 & |
| | | 4 | | 3 | 2 | 3 |
|----------------+-------+------+-------+------+------+------|
| AM5X86 | 3 & 4 | 3 & | 3 & 4 | 2 & | 2 & | 2 & |
| | | 4 | | 3 | 3 | 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP9 | JP10 | JP11 | JP12 |
|----------------+---------+---------+--------------+--------|
| 80486SX | Open | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| SL80486SX | Closed | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| SL80486SX2 | Closed | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| 80486DX | Open | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| SL80486DX | Closed | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| CX486M7 | Closed | Open | 1 & 2 | Open |
|----------------+---------+---------+--------------+--------|
| TI486DX2 | Closed | Open | 1 & 2 | Open |
|----------------+---------+---------+--------------+--------|
| AM486-66/80 | Open | Closed | Open | Closed |
|----------------+---------+---------+--------------+--------|
| AM486-100 | Open | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| AM486+/66/80 | Closed | Open | 1 & 3, 5 & 6 | Closed |
|----------------+---------+---------+--------------+--------|
| AM486+/100/120 | Closed | Open | 5 & 6 | Closed |
|----------------+---------+---------+--------------+--------|
| 80486DX2 | Open | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| SL80486DX2 | Closed | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| TI486DX4 | Closed | Open | 1 & 2 | Open |
|----------------+---------+---------+--------------+--------|
| 80486DX4 | Closed | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| P24D | Closed | Open | 5 & 6 | Closed |
|----------------+---------+---------+--------------+--------|
| P24T | Closed | Open | Open | Closed |
|----------------+---------+---------+--------------+--------|
| CX5X86 | Closed | Open | 5 & 6 | Closed |
|----------------+---------+---------+--------------+--------|
| AM5X86 | Closed | Open | 1 & 3, 5 & 6 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+