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 [Image] 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 9 & interface 19 Parallel port J4 IDE interface LED JP1 pins 10 & 20 Serial port 1 J5 Power LED & JP1 pins 11 - keylock 15 Serial port 2 J6 PS/2 mouse JP27 interface Speaker JP1 pins 1 - Auxiliary keyboard KB1 4 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 36 None None 36 6MB (1) 256K x (1) 256K x (1) 1M x 36 None 36 36 6MB (1) 512K x None (1) 1M x 36 None 36 8MB (1) 1M x 36 (1) 1M x 36 None None 8MB (1) 2M x 36 None None None 10MB (1) 256K x (1) 256K x (1) 1M x 36 (1) 1M x 36 36 36 10MB (1) 512K x None (1) 1M x 36 (1) 1M x 36 36 10MB (1) 512K x None (1) 2M x 36 None 36 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 (1) 4M x 36 None None 36 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 Open Open Open closed 33MHz Pins 1 & 2 Closed Closed Open closed 40MHz Pins 1 & 2 Closed Open Open closed 50iMHz Pins 1 & 2 Open Open Open closed 50MHz Pins 2 & 3 Open Closed Closed closed 66iMHz Pins 1 & 2 Closed Closed Open closed 75iMHz Pins 1 & 2 Open Open Open closed 80iMHz Pins 1 & 2 Closed Open Open closed 100iMHz Pins 1 & 2 Closed Closed Open closed 120iMHz Pins 1 & 2 Closed Open Open closed 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 Closed & 6 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 Closed & 6 Note: Pins designated should be in the closed position.