MC145190EVK Просмотр технического описания (PDF) - Motorola => Freescale
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MC145190EVK Datasheet PDF : 17 Pages
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PRINTER PORT CONFIGURATION
Printer port outputs on an IBM PC or clone use TTL–LS logic levels. Inputs are one TTL–LS load. Signal
lines can be used for any purpose. The standard names, direction of data flow, true and inverted data are
shown in Figure 3.
Printer
Signal Name
– Strobe
+ Data Bit 0
+ Data Bit 1
+ Data Bit 2
+ Data Bit 3
+ Data Bit 4
+ Data Bit 5
+ Data Bit 6
+ Data Bit 7
– Acknowledge
+ Busy
+ P. End (out of paper)
+ Select
– Auto Feed
– Error
– Initialize Printer
– Select Input
Ground
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 – 25
IBM Printer
Port
Figure 3. Printer Port Data Lines
Pin numbers for the port connector are shown in Figure 4.
13
(front view)
1
25
14
Figure 4. DB–25 Male Connector
MOTOROLA
MC145190EVK
9
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