Aljaz.Ogrin@email.si

      Razpored signalov na paralelnem / vzporednem vmesniku:
    ----------------------------------------------------------

  konektor "DB-25"

25 Pinski konektor - zenski
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 [ IBM PC-AT ]

(!) = velja za terminal oz. PC

                                   Biti na portih
Pin   Mnemonic    Smer (!)      Data    Status   Control
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 1    STROBE      in/out                           1 F
 2    Data 0      out (*)        1 T
 3    Data 1      out (*)        2 T
 4    Data 2      out (*)        4 T
 5    Data 3      out (*)        8 T
 6    Data 4      out (*)       16 T
 7    Data 5      out (*)       32 T
 8    Data 6      out (*)       64 T
 9    Data 7      out (*)      128 T
10    ACK         in                    64 T
11    BUSY        in                   128 F
12    PEND        in                    32 T
13    SELECT      in                    16 T
14    AFEED       in/out                            2 F
15    ERROR       in                     8 T
16    INIT        in/out                            4 T
17    SLCTIN      in/out                            8 F
18    GND         ground
.      .
.      .
25    GND


(*) = - starejse kartice:  out
      - novejse kartice,
        on-board vmesniki: in/out

   bit 1   = bit 0
           .         
   bit 64  = bit 6
   bit 128 = bit 7

  T / F :   T (true) bit ni negiran
            F ( false) bit je hardwersko negiran

(****************************************************************************)

   Standardni naslovi:

LPT1:
 Data    = 378h
 Status  = 379h
 Control = 37Ah

LPT2:
 Data    = 278h
 Status  = 279h
 Control = 27Ah

LPT2:
 Data    = 3BCh
 Status  = 3BDh
 Control = 3BEh

(****************************************************************************)


Podatki iz kataloga:

-------------------------------------------------------------------------------
0278-027A ----	parallel printer port, same as 0378 and 03BC

0278	w	data port
0279	r/w	status port
027A	r/w	control port

-------------------------------------------------------------------------------
0378-037A ----	parallel printer port, same as 0278 and 03BC

0378	w	data port
0379	r/w	status port
037A	r/w	control port

-------------------------------------------------------------------------------
03BC-03BE ----	parallel printer port, same as 0278 and 0378

03BC	w	data port
03BD	r/w	status port
		 bit 7 = 0  busy
		 bit 6 = 0  acknowledge
		 bit 5 = 1  out of paper
		 bit 4 = 1  printer is selected
		 bit 3 = 0  error
		 bit 2 = 0  IRQ has occurred
		 bit 1-0    reserved

03BE	r/w	control port
		 bit 7-5    reserved
		 bit 4 = 1  enable IRQ
		 bit 3 = 1  select printer
		 bit 2 = 0  initialize printer
		 bit 1 = 1  automatic line feed
		 bit 0 = 1  strobe

-------------------------------------------------------------------------------



##############################################################################


                     Povezave preko paralelnega vmesnika
                     za prenos podatkov za programe:
                      * INTERLNK, INTERSVR (DOS 6.xx)
                      * WIN 95 - direktna povezava
                      * FastWire 2 (FW2.EXE)
                 -----------------------------------------

 Stevilke pinov na enem in drugem koncu kabla:
 ( na obeh straneh je DB-25 moski konektor)

   1
   2 ---------- 15
   3 ---------- 13
   4 ---------- 12
   5 ---------- 10
   6 ---------- 11
   7
   8
   9
  10 ---------- 5
  11 ---------- 6
  12 ---------- 4
  13 ---------- 3
  14
  15 ---------- 2
        .
        .
        .
  24 ---------- 24
  25 ---|------ 25
        |
     oklop kabla (pletenica)

END.