Centronics . LPT- . -. Centronics , 36- . . 8.3, . 8.5.
8.3. Centronics
I/O¹ | |||
Strobe# | I | 1 | . |
Data [0:7] | I | 2-9 | . Data 0 ( 2) |
Ack# | O | 10 | Acknowledge ( ). |
Busy | O | 11 | . |
PaperEnd | O | 12 | |
Select | O | 13 | ( + 5 ) |
Auto LF# | I | 14 | . , CR (Carriage Return ), LF (Line Feed ) |
Error# | O | 32 | : , OFF-Line |
Init# | I | 31 | : , |
Select In# | I | 36 | ( ). |
GND | - | 19-30, 33 |
¹ I/O ( ) .
. 8.5. Centronics
Busy. , , Busy. . () Ack#, ( - , ). Ack# , . , Ack# Strobe# Busy. Select, Error#, PaperEnd , , . Init# ( ). , , , AutoLF# . SelectIn# .
|
|
(LPT) Centronics , (SPP), 150 / . (Fast Centronics), 2 / .
IEEE 1284, ECP (. . 1.3.4).
Centronics, . 18- SPP. 2 , Strobe# Busy . (Fast Centronics, ECP) , . Centronics, 17 PC 36 . , 1284, . , . Windows. .
, ( ) . ( , ) ( ).
, , IEEE 1248. 2 / 10 .
. 8.4 X1 (DB25-P) PC X2 (Centronics -36) () . (GND) (. ). (18- ) GND . , ( . 8.4 PC , ). (GND) ; 1-17 GND 1935.
8.4.
X1, PC | X2, PRN | X2, PRN | |
1 | Strobe# | 1 | 15 |
2 | Data0 | 2 | 6 |
3 | Data1 | 3 | 7 |
4 | Data2 | 4 | 8 |
5 | Data3 | 5 | 9 |
6 | Data4 | 6 | 10 |
7 | Data5 | 7 | 11 |
8 | Data6 | 8 | 12 |
9 | Data7 | 9 | 13 |
10 | Ack# | 10 | 3 |
11 | Busy | 11 | 1 |
12 | PaperEnd | 12 | 5 |
13 | Select | 13 | 2 |
14 | Auto LF# | 14 | 17 |
15 | Error# | 32 | 4 |
16 | Init# | 31 | 14 |
17 | Select In# | 36 | 16 |
18 | GND(1) | 19 | 33 |
19 | GND(2 3) | 20 21 | 24 25 |
20 | GND(4 5) | 22 23 | 26 27 |
21 | GND(6 7) | 24 25 | 28 29 |
22 | GND(8 9) | 26 27 | 30 31 |
23 | GND(11 15) | 29 | 19 22 |
24 | GND(10 12 13) | 28 | 20 21 23 |
25 | GND(14 16 17) | 30 | 32 34 35 |
( ) (IFSP ROBOTRON). Centronics, .
|
|
♦ .
♦ .
♦ ( ) : 220 +5 330 . , PC.
♦ .
LPT-, . , , (, ).