AST RESEARCH, INC. ADVANTAGE! MEMORY EXPANSION AND I/O BOARD Card Type Multi-I/O card Chip Set Unidentified Maximum Onboard Memory 3MB DRAM (with daughter board) I/O Options Game port, parallel port, serial ports (2), Advantage-Pak memory card Data Bus 16-bit ISA Floppy drives supported None [Image] CONNECTIONS Function Label Function Label Parallel port J1 Game port J4 Serial port 1 J2 Advantage-Pak connector J5 Serial port 2 J3 USER CONFIGURABLE SETTINGS Function Label Position » Serial port 1 CTS input forced true J7/A Closed Serial port 1 CTS normal J7/A Open » Serial port 1 CTS normal J7/B Closed Serial port 1 CTS input forced true J7/B Open » Serial port 1 DSR input forced true J7/C Closed Serial port 1 DSR normal J7/C Open » Serial port 1 DSR normal J7/D Closed Serial port 1 DSR input forced true J7/D Open » Serial port 1 DCD input forced true J7/E Closed Serial port 1 DCD input normal J7/E Open » Serial port 1 DCD normal J7/F Closed Serial port 1 DCD forced true J7/F Open » Serial port 2 CTS input forced true J8/A Closed Serial port 2 CTS normal J8/A Open » Serial port 2 CTS normal J8/B Closed Serial port 2 CTS input forced true J8/B Open » Serial port 2 DSR input forced true J8/C Closed Serial port 2 DSR normal J8/C Open » Serial port 2 DSR normal J8/D Closed Serial port 2 DSR input forced true J8/D Open USER CONFIGURABLE SETTINGS (CON’T) Function Label Position » Serial port 2 DCD input forced true J8/E Closed Serial port 2 DCD input normal J8/E Open » Serial port 2 DCD normal J8/F Closed Serial port 2 DCD forced true J8/F Open » Factory configured - do not alter SW1/6 N/A » Factory configured - do not alter SW1/7 N/A Parity enabled SW1/8 On Parity Disabled SW1/8 Off Game port enabled SW2/6 On Game port disabled SW2/6 Off » Factory configured - do not alter SW2/7 N/A » Factory configured - do not alter SW2/8 N/A » Factory configured - do not alter SW3/8 N/A DRAM SWITCH CONFIGURATION Bank0 Bank1 Bank2 Bank3 Bank4 Bank5 SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 128KB None None None None None Off Off Off Off On 512KB None None None None None Off Off On On On 128KB 128KB None None None None Off Off Off On Off 128KB 512KB None None None None On Off Off Off Off 512KB 512KB None None None None Off On Off Off Off 128KB 128KB 128KB None None None Off Off Off On On 128KB 128KB 512KB None None None On Off On Off On 128KB 512KB 512KB None None None On Off Off Off On 512KB 512KB 512KB None None None Off On Off Off On 128KB 128KB 128KB 128KB None None Off Off On Off Off 128KB 128KB 128KB 512KB None None On On Off Off On 128KB 128KB 512KB 512KB None None On Off On On Off 128KB 512KB 512KB 512KB None None On Off Off On Off 512KB 512KB 512KB 512KB None None Off On Off On Off 128KB 128KB 128KB 128KB 128KB None Off Off On Off On 128KB 128KB 128KB 128KB 512KB None On On On Off Off 128KB 128KB 128KB 512KB 512KB None On On Off On Off 128KB 128KB 512KB 512KB 512KB None On Off On On On 128KB 512KB 512KB 512KB 512KB None On Off Off On On 512KB 512KB 512KB 512KB 512KB None Off On Off On On 128KB 128KB 128KB 128KB 128KB 128KB Off Off On On Off 128KB 128KB 128KB 128KB 128KB 512KB On On On On Off 128KB 128KB 128KB 128KB 512KB 512KB On On On Off On 128KB 128KB 128KB 512KB 512KB 512KB On On Off On On 128KB 128KB 512KB 512KB 512KB 512KB On On Off Off Off 128KB 512KB 512KB 512KB 512KB 512KB On Off On Off Off 512KB 512KB 512KB 512KB 512KB 512KB Off On On Off Off SPLIT MEMORY ADDRESSING SELECTION Address SW3/1 SW3/2 SW3/3 SW3/4 SW3/5 SW3/6 SW3/7 256KB AT On On On On On Off On 512KB AT On On On On Off On On 512KB AT On On On Off On On On 612KB AT On On On Off On On On SERIAL PORT(S) ADDRESS SWITCH SELECTION (ONE SERIAL PORT) Number of Serial SW2/1 SW2/2 SW2/3 ports in AT 0 On Off Off 1 Off On Off 2 Off Off Off SERIAL PORT(S) ADDRESS SELECTION (TWO SERIAL PORTS) Serial port 1 Serial port 2 J6/A J6/B J6/C Setting Setting COM1 (3F8h) Disabled Open Open Closed COM2 (2F8h) Disabled Open Closed Open Disabled Disabled Open Open Open SERIAL PORT(S) ADDRESS SWITCH SELECTION (TWO SERIAL PORTS) Number of Serial SW2/1 SW2/2 SW2/3 ports in AT 0 On Off On 1 Off On Off 2 Off Off Off SERIAL PORT(S) ADDRESS SELECTION (ONE SERIAL PORT) Serial port 1 Serial port 2 J6/A J6/B J6/C Setting Setting COM1 (3F8h) Disabled Closed Open Closed COM2 (2F8h) Disabled Open Closed Open Disabled Disabled Open Open Open PARALLEL PORT ADDRESS SWITCH SELECTION (COLOR-TYPE DISPLAY CARD) Number of Parallel ports SW2/4 SW2/5 in AT 0 On Off 1 Off On 2 Off Off 3 Off Off PARALLEL PORT ADDRESS SELECTION (COLOR-TYPE DISPLAY CARD) IRQ J6/D J6/E LPT1 Open Closed LPT2 Closed Open Disabled Open Open Disabled Open Open PARALLEL PORT ADDRESS SWITCH SELECTION (MONOCHROME-TYPE DISPLAY CARD) Number of Parallel ports SW2/4 SW2/5 in AT 1 Off On 2 Off Off 3 Off Off PARALLEL PORT ADDRESS SELECTION (MONOCHROME-TYPE DISPLAY CARD) IRQ J6/D J6/E LPT2 Open Closed LPT3 Closed Open Disabled Open Open Disabled Open Open AST RESEARCH, INC. ADVANTAGE-PAK [Image] CONNECTIONS Function Label Advantage-Pak connector CN1 TOTAL DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 Bank 3 Bank 4 Bank 5 128KB (18) None None None None None 4164 256KB (18) (18) None None None None 4164 4164 384KB (18) (18) (18) None None None 4164 4164 4164 512KB(A) (18) (18) (18) (18) None None 4164 4164 4164 4164 512KB(B) (18) None None None None None 41256 640KB(A) (18) (18) None None None None 4164 41256 640KB(B) (18) (18) (18) (18) (18) None 4164 4164 4164 4164 4164 768KB(A) (18) (18) (18) None None None 4164 4164 41256 768KB(B) (18) (18) (18) (18) (18) (18) 4164 4164 4164 4164 4164 4164 896KB (18) (18) (18) (18) None None 4164 4164 4164 41256 1024KB(A) (18) (18) None None None None 41256 41256 1024KB(B) (18) (18) (18) (18) (18) None 4164 4164 4164 4164 41256 1152KB(A) (18) (18) (18) None None None 4164 41256 41256 1152KB(B) (18) (18) (18) (18) (18) (18) 4164 4164 4164 4164 4164 41256 1536KB (18) (18) (18) None None None 41256 41256 41256 1664KB (18) (18) (18) (18) None None 4164 41256 41256 41256 2048KB (18) (18) (18) (18) None None 41256 41256 41256 41256 2176KB (18) (18) (18) (18) (18) None 4164 41256 41256 41256 41256 2560KB (18) (18) (18) (18) (18) None 41256 41256 41256 41256 41256 2688KB (18) (18) (18) (18) (18) (18) 4164 41256 41256 41256 41256 41256 3072KB (18) (18) (18) (18) (18) (18) 41256 41256 41256 41256 41256 41256 MISCELLANEOUS TECHNICAL NOTE Note: CN1 is located on the back side of the daughter board.