DTK Computers

     Technical Information Sheet for PTI-227W
     S=shorted, O=open             DIP switch 1=on 0=off

     JP6-1:A&B Change Mode         JP6-2:FD Address Select
         H A&B Changed                 H 3F0-3F7
         L Normal                      L 370-377
     
     JP6-3:IDE Enable              JP6-4:HD Address Select
         H Disable IDE                 H 3F6-3F7,1F0-1F7         
         L Enable IDE                  L 376-377,170-177         

     JP6-5:FDC Enable              JP8:HD Activity Light
         H Disable FDC                 <1> Vcc
         L Enable FDC                  <2> Activity
                                       
     JP9:I/O Address (H=top two pins L=bottom two pins)
         Blocks   Address   Blocks   Address   Blocks   Address
         1 2 Serial Port 1  3 4 Serial Port 2  5 6 Parallel Port 
         L L COM4(2E8h)     L L COM3(2E8h)     L L LPT3(3BCh)
         L H COM1(3F8h)     L H COM2(3F8h)     L H LPT2(278h)
         H L COM3(3E8h)     H L COM4(3E8h)     H L LPT1(378h)
         H H disable        H H disable        H H disable

     JP12:IRQ Select
        1 2 3 Serial Port 1  4 5 6 Serial Port 2  7 8 Parallel Port
        S O O IRQ 4          S O O IRQ 3          S O IRQ 7
        O S O IRQ 3          O S O IRQ 4          O S IRQ 5
        O O S IRQ 5          O O S IRQ 5
     
     J1:Select IDEIOR Path         J2:Select IDEIOW Path
        1-2 W83758P (Buffer)          1-2 W83758P (Buffer)
        2-3 ATBUS IOR                 2-3 ATBUS IOW