TMC RESEARCH CORPORATION
CAT48AF, CAP48AF
| 
 Processor  | 
 804846SX/SL80486SX/SL80486SX2/80486DX/SL80486DX/ TI486DX2/AM486/AM486+/80486DX2/SL80486DX2/TI486DX4/ 80486DX4/P24D/P24T/CX5X86  | 
| 
 Processor Speed  | 
 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)MHz  | 
| 
 Chip Set  | 
 ALI  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 128MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 128/256/512KB  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 Unidentified  | 
| 
 I/O Options  | 
 Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2)  | 
| 
 NPU Options  | 
 None  | 
| 
 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 interface  | 
 J3  | 
 Reset switch  | 
 JP1 pins 9 & 19  | 
| 
 Parallel port  | 
 J4  | 
 IDE interface LED  | 
 JP1 pins 10 & 20  | 
| 
 Serial port 1  | 
 J5  | 
 Power LED & keylock  | 
 JP1 pins 11 - 15  | 
| 
 Serial port 2  | 
 J6  | 
 PS/2 mouse interface  | 
 JP27  | 
| 
 Speaker  | 
 JP1 pins 1 - 4  | 
 Auxiliary keyboard connector  | 
 KB1  | 
| 
 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 times out  | 
 JP20  | 
 Pins 1 & 2 closed  | 
| 
 Activate NMI to CPU when watch dog timer times out  | 
 JP20  | 
 Pins 2 & 3 closed  | |
| 
 Watch dog timer disabled  | 
 JP20  | 
 Open  | |
| 
 »  | 
 Watch dog timer time out select 1 second  | 
 JP22  | 
 Open  | 
| 
 Watch dog timer time out select 500ms  | 
 JP22  | 
 Closed  | |
| 
 DRAM CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 2MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 None  | 
 None  | 
| 
 2MB  | 
 (1) 512K x 36  | 
 None  | 
 None  | 
 None  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 4MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 4MB  | 
 (1) 512K x 36  | 
 None  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 4MB  | 
 (1) 512K x 36  | 
 None  | 
 (1) 512K x 36  | 
 None  | 
| 
 5MB  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 6MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 None  | 
| 
 6MB  | 
 (1) 512K x 36  | 
 None  | 
 (1) 1M x 36  | 
 None  | 
| 
 8MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 None  | 
 None  | 
| 
 8MB  | 
 (1) 2M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 10MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 10MB  | 
 (1) 512K x 36  | 
 None  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 10MB  | 
 (1) 512K x 36  | 
 None  | 
 (1) 2M x 36  | 
 None  | 
| 
 12MB  | 
 (1) 1M x 36  | 
 None  | 
 (1) 2M x 36  | 
 None  | 
| 
 16MB  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 16MB  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 2M x 36  | 
 None  | 
 (1) 1M x 36  | 
 (1) 1M x 36  | 
| 
 16MB  | 
 (1) 2M x 36  | 
 None  | 
 (1) 2M x 36  | 
 None  | 
| 
 17MB  | 
 (1) 256K x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 20MB  | 
 (1) 1M x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 32MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 None  | 
 None  | 
| 
 32MB  | 
 (1) 8M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 64MB  | 
 (1) 16M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 64MB  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 64MB  | 
 (1) 8M x 36  | 
 None  | 
 (1) 4M x 36  | 
 (1) 4M x 36  | 
| 
 64MB  | 
 (1) 8M x 36  | 
 None  | 
 (1) 8M x 36  | 
 None  | 
| 
 128MB  | 
 (1) 16M x 36  | 
 (1) 16M x 36  | 
 None  | 
 None  | 
| 
 128MB  | 
 (1) 32M x 36  | 
 None  | 
 None  | 
 None  | 
| 
 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 connector  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 CPU TYPE SELECTION  | ||||||
| 
 Type  | 
 JP3  | 
 JP4  | 
 JP5  | 
 JP6  | 
 JP7  | 
 JP8  | 
| 
 80486SX  | 
 Open  | 
 1 & 2  | 
 Open  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
| 
 SL80486SX  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
| 
 SL80486SX2  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
| 
 80486DX  | 
 Open  | 
 1 & 2  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 SL80486DX  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 CX486M7  | 
 5 & 6  | 
 5 & 6  | 
 5 & 6  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 TI486DX2  | 
 5 & 6  | 
 5 & 6  | 
 5 & 6  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486-66/80  | 
 Open  | 
 1 & 2  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486-100  | 
 Open  | 
 1 & 2  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM486+/66/80  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 AM486+/100/120  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 80486DX2  | 
 Open  | 
 1 & 2  | 
 Open  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 SL80486DX2  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 TI486DX4  | 
 5 & 6  | 
 5 & 6  | 
 5 & 6  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 80486DX4  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 P24D  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 2 & 3  | 
 2 & 3  | 
| 
 P24T  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 2 & 3  | 
 1 & 2  | 
| 
 CX5X86  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 1 & 2  | 
 2 & 3  | 
| 
 AM5X86  | 
 3 & 4  | 
 3 & 4  | 
 3 & 4  | 
 2 & 3  | 
 2 & 3  | 
 2 & 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.  | ||||