May 2024
Intermediate to advanced
889 pages
30h 8m
English
book
The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
by Lyla B. Das
Content preview from The X 86 Microprocessors: Architecture, Programming and Interfacing (8086 to Pentium) 2nd Edition by Pearson
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21-16
THE
x86 MICROPROCESSORS
32
In 1
In 2
In 3
In 4
En 1
En 2
4
5
12
13
L
2
9
3
D
7
10
15
1
9
5V12V
16
8
6
11
14
12
A
A
B
P1.0
P1.1
8
0
5
1
DC Motor
Out 1
Out 2
Out 3
Out 4
VS
VSS
+−
Figure 21.13 | Connections between an 8051, an H-bridge and a DC motor
Table 21.2 Action Performed for the Four Combinations of A and B
A B Action Performed
0
0
1
1
0
1
0
1
Motor is in the stop/brake condition
Motor rotates anti-clockwise
Motor rotates clockwise
Motor is in the stop/brake condition
For applications that do not need reversal of direction, the four output pins can be
used for driving four separate motors. This IC is rated for an output current of 600 mA
and peak output current of 1.2 A per channel. Moreo ...
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