Hardware Conflicts Resolution sheet for CPUs 3000, HL, NL Interrupts 1000 & 1000 SX 1000 SL 1000 TX 1000 TL 4000 & LX 0 Software Timer Software Timer Software Timer Software Timer Timer 1 Keyboard Keyboard Keyboard Keyboard Keyboard 2 Unused Unused Unused Unused Unused 3 Unused Unused COM 2* Unused COM 2 4 Unused COM 1 COM 1* COM 1 COM 1 5 Vertical Sync. Vertical Sync. Vert. Sync.* Vertical Sync. LPT 2 6 Floppy Disk Floppy Disk Floppy Disk* Floppy Disk Floppy Disk 7 LPT 1 LPT 1 LPT 1* LPT 1 LPT 1 8 N A N A N A N A Real Time Clock 9 N A N A N A N A Used by Interrupt 2 10 N A N A N A N A Unused 11 N A N A N A N A Unused 12 N A N A N A N A Unused 13 N A N A N A N A Co-Processor 14 N A N A N A N A Hard Disk (16-bit) 15 N A N A N A N A Unused DMA 1000 & 1000 SX 1000 SL 1000 TX 1000 TL 3000s & 4000s 0 Refresh N A Refresh Refresh Spare 1 Opt SDLC/FDC 2 Sound Circuit Opt SDLC/FDC 2 Sound Circuit Opt SDLC/FDC 2 2 Floppy Disk 1 Floppy Disk 1 Floppy Disk 1 Floppy Disk 1 Floppy Disk 3 Optional Hard Optional Hard Optional Hard Optional Hard Opt Hard Disk (8-bit) 4 N A N A N A N A Cascade 5 N A N A N A N A Open 6 N A N A N A N A Open 7 N A N A N A N A Open I/O Assign 1000 & 1000 SX 1000 SL 1000 TX 1000 TL 3000s & 4000s 0000 000F DMA Function DMA Function DMA Function DMA Function DMA 1 Function 0010 001F Reserved Reserved Reserved Reserved DMA 1 Function 0020 003F InterruptControllerInterruptControllerInterruptControllerInterruptControllerInterruptController 1 0040 005F Timer Timer Timer Timer Timer 0060 007F Keyboard Keyboard Keyboard Keyboard Keyboard 0080 009F DMA Page Register DMA Page Register DMA Page Register DMA Page Register DMA Page Register 00A0 00BF NMI NMI NMI NMI NMI, INT Controller 2 00C0 00DF Sound Generation Sound Generation Sound Generation Sound Generation DMA Controller 2 00E0 00EF Reserved Reserved Reserved Reserved Reserved 00F0 00FF Reserved Reserved Reserved Reserved Co-Processor 0100 01EF Reserved Reserved Reserved Reserved Reserved 01F0 01F8 Reserved Reserved Reserved Reserved Hard Disk 01F9 01FF Reserved Reserved Reserved Reserved Reserved 0200 0207 Joystick Joystick Joystick Joystick Game Port 0208 0209 Joystick Joystick Joystick Joystick Reserved 020A 020F Joystick Joystick Joystick Joystick Reserved Hardware Conflicts Resolution Sheet for CPUs (continued) 3000, HL, NL, I/O Assign 1000 & 1000 SX 1000 SL 1000 TX 1000 TL 4000 & LX 0210 0217 Reserved Reserved Reserved Reserved Reserved 0218 C277 Reserved Reserved Reserved Reserved Reserved 0278 027F LPT 2 LPT 2 LPT 2 LPT 2 LPT 2 0280 02F7 Reserved Reserved Reserved Reserved Reserved 02F8 02FF COM 2 COM 2 COM 2 COM 2 COM 2 0300 031F Reserved Reserved Reserved Reserved Prototype Card 0320 032F Hard Disk Hard Disk Hard Disk Hard Disk Unused 0330 036F Unused Unused Unused Unused Reserved 0370 037F LPT 1 LPT 1 LPT 1 LPT 1 LPT 1 0380 038F Unused Unused Unused Unused SDLC, BISYNC 2 03A0 03AF Unused Unused Unused Unused BISYNC 1 03B0 03BF Unused Monochrome Video Unused Monochrome Video Monochrome Video 03C0 03CF Unused Unused Unused Unused Reserved 03D0 03DF Color Video Color Video Color Video Color Video Color Video 03E0 03E7 Unused Unused Unused Unused FDC 2 03E8 03EF Reserved Reserved Reserved Reserved Reserved 03F0 03F7 FDC 1 FDC 1 FDC 1 FDC 1 FDC 1 03F8 03FF COM 1 COM 1 COM 1 COM 1 COM 1 0400 FFFF Not Usable Not Usable Not Usable Not Usable Not Usable *Switchable Hardware Conflicts Resolution Sheet for Upgrade Cards 1000, 1000 TX, 3000, 4000 Upgrade Cards Catalog Interrupts DMA I/O Port Address SX SL & TL HL & NL & LX Tandy 1000 Hard Disk Control 25-1007 2 3 320H C800H X Tandy 1000 DynaMouse Control 25-1010 3 2FCH X X 1200 Baud PC Modem 25-1013 4 (Com 1) 3F8H X X X X (Range of Options) 3 (Com 2) 2F8H 20 Meg Hard Disk Card 25-1029 2 3 320H CB000H X X X X (Range of Options) 5 324H CA000H Disk Cartridge System 25-3022 3 340-345H X X All Graphics Adapters (Mono) 3B0-3BFH*B0000H X X X All Graphics Adapters (Color) 3D0-3DFH B8000H X X X EGA/VGA Adapters 2 3B0-3DFH C0000H PLLS RS-232 Interface 25-3031 X X X X Dual Port Serial Board 25-4039 4 (Com 1) 3F8H X X X (Range of Options) 3 (Com 2) 2F8H 2 (Com 3) 3E8H 5 (Com 4) 2E8H Tandy 3000 Hard Disk Control 25-4060 .. 1F0H X X 170H 3Com EtherLink II 26-5501 3 1 300H X X X X (Range of Options) 2-5 1-3 250,280,2A0,2E0,300,310,330,350H EtherLink 90-1658 3 1 300H X X X X (Range of Options) 2-5 1-3 0-3F0H EtherLink Plus 26-5502 3 1 300H X X X X (PC/XT Compatible) 3-7,9 1,3 0-3F0H (AT 8-bit Slot) 3-7,9-10 1,3 0-3F0H (AT 16-bit Slot) 11-12,14-155-7 0-3F0H TandyLink Network Board 26-5601 2 1 398H X X X (Range of Options) 3 3 310-3D8H Ricoh Scanner 90-xxxx 288-28FH X X Hitachi CD-ROM Interface 90-2156 3* 300H X X X (Range of Options) 200-360H *Hercules Graphics presents some unusual problems in Tandy 1000 or if two monitors are used.