MC145192EVK View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MC145192EVK Datasheet PDF : 48 Pages
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In Figure 2, DIP switch sections 6, 7, and 8 allow the computer to read Out A, Out B or Lock Detect from
the PLL device. Each of the inputs can only be read on one board at a time, but each item could be read
on a different board. In a three–board cascade, Out A could be read from the first board, Out B from the
second, and Lock Detect from the third. There is no way to determine in software the board address of a
particular input. The control program does not make use of these inputs. Pin assignment on the printer
port connector is:
Label
Out A
Out B
Lock Detect
Pin Number
12
13
15
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
MOTOROLA
MC145192EVK • MC145202EVK
7
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