IEEE 1284.
♦ IEEE P1284.1 Standard for Information Technology for Transport Independent Printer/Scanner Interface (TIP/SI). NPAP (Network Printing Alliance Protocol).
♦ IEEE P1284.2 Standard for Test, Measurement and Conformance to IEEE Std. 1284 , IEEE 1284.
♦ IEEE P1284.3 Standard for Interface and Protocol Extensions to IEEE Std. 1284 Compliant Peripheral and Host Adapter Ports (). BIOS EPP DOS. , .
♦ IEEE P1284.4 Standard for Data Delivery and Logical Channels for IEEE Std. 1284 Interfaces . MLC (Multiple Logical Channels) Hewlett-Packard, .
LPT-
LPT- (Int 17h, . . 8.3.3). POST BIOS 3BCh, 378h 278h BIOS Data Area 0:0408h, 040Ah, 040Ch, 040Eh. LPT1-LPT4, . 0:0478, 0479, 047, 047 , - .
( ) (AAh 55h), . , , LPT-; BIOS Data Area. . LPT4 BIOS , .
Init#, 0Ch, . Init# . On-Line. (, BIOS Setup) Print Screen .
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PnP
, LPT-, 1284 PnP. , 1284. PnP, 1284 , , . , PnP . , . , , . .
PnP , , , . Windows PnP, , ( ), . Windows PnP, . PnP , , SelectIn# ( 17 LPT 36 Centronics).
LPT-
LPT- (. . 8.3.1), .
. , . 10 . . 1.11. PC Interlnk MS-DOS Norton Commander. , , . 1.3.1.
1.11. PC-PC (4-)
X1, PC#1 | X2, PC#2 | ||
DR.0 | 2 | 15 | SR.3 |
DR.1 | 3 | 13 | SR.4 |
DR.2 | 4 | 12 | SR.5 |
DR.3 | 5 | 10 | SR.6 |
DR.4 | 6 | 11 | SR.7 |
SR.6 | 10 | 5 | DR.3 |
SR.7 | 11 | 6 | DR.4 |
SR.5 | 12 | 4 | DR.2 |
SR.4 | 13 | 3 | DR.1 |
SR.3 | 15 | 2 | DR.0 |
GND | 18-25 | 18-25 | GND |
X1 X2 DB25-P ().
( , - ).
. 1.12 , (. [2] [5]) ( 13 15). PeriphRequest# ( 15). (0,51 ), , . , . Windows 9, PARALINK.VxD, - . , (www.lpt.com, www.lvr.com/parport.htm).
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1.12. PC-PC
X1 | X2 | ||
1 | HostClk | PeriphClk | 10 |
14 | HostAck | PeriphAck | 11 |
17 | 1284Active | Xflag | 13 |
16 | ReverseRequest# | AskReverse# | 12 |
10 | PeriphClk | HostClk | 1 |
11 | PeriphAck | HostAck | 14 |
12 | AckReverse# | ReverseRequest# | 16 |
13 | Xflag | 1284Active | 17 |
2, 39 | Data [0:7] | Data [0:7] | 2, 39 |
LPT- , (Bi-Di), . , ( , ).
(Iomega Zip Drive, CD-ROM .), - . SPP : , ( ) . (Bi-Di PS/2 1) . , . LPT- ISA- . LPT- (, LPT-IDE, LPT-SCSI, LPT-PCMCIA). , IDE, LPT-, SCSI ( ).
. 1.13 LPT- .
1.13. LPT- SPP,
I/O | ¹ | SPP | ECP | EPP | |
1 | O/I | CR.0\ | Strobe# | HostClk | Write# |
2 | O/I | DR.0 | Data 0 | Data 0 | Data 0 |
3 | O/I | DR.1 | Data 1 | Data 1 | Data 1 |
4 | O/I | DR.2 | Data 2 | Data 2 | Data 2 |
5 | O/I | DR.3 | Data 3 | Data 3 | Data 3 |
6 | O/I | DR.4 | Data 4 | Data 4 | Data 4 |
7 | O/I | DR.5 | Data 5 | Data 5 | Data 5 |
8 | O/I | DR.6 | Data 6 | Data 6 | Data 6 |
9 | O/I | DR.7 | Data 7 | Data 7 | Data 7 |
10 | I | SR.6 | Ack# | PeriphClk | INTR# |
11 | I | SR.7\ | Busy | PeriphAck | Wait# |
12 | I | SR.5 | PaperEnd | AckReverse# | ² |
13 | I | SR.4 | Select | Xflag | ² |
14 | O/I | CR.1\ | Auto LF# | HostAck | DataStb# |
15 | I | SR.3 | Error# | PeriphRequest# | ² |
16 | O/I | CR.2 | Init# | ReverseRequest# | Reset# |
17 | O/I | CR.3\ | Select In# | 1284Active | AddrStb# |
¹ \ (1 ).
² .