MC10165 데이터 시트보기 (PDF) - Motorola => Freescale
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MC10165 Datasheet PDF : 6 Pages
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MC10165
APPLICATION INFORMATION
A typical application of the MC10165 is the decoding of
system status on a priority basis. A 64 line priority encoder
is shown in the figure below. System status lines are
connected to this encoder such that, when a given condition
exists, the respective input will be at a logic high level. This
scheme will select the one of 64 different system
conditions, as represented at the encoder inputs, which
has priority in determining the next system operation to be
performed. The binary code showing the address of the
highest priority input present will appear at the encoder
outputs to control other system logic functions.
64–LINE PRIORITY ENCODER
LSB
System
Clock
Highest
Priority
Input
Lowest
Priority
Input
1/2 MC10101
Z
MC10164
X0 . . . . . . . X7 A B C
Z
MC10164
X0 . . . . . . . X7 A B C
Z
MC10164
X0 . . . . . . . X7 A B C
C
Q0
D0
Q1
Q2
D7
Q3
C
Q0
D0
Q1
Q2
D7
Q3
C
Q0
D0
Q1
Q2
D7
Q3
C
Q0
D0
Q1
Q2
D7
Q3
C
Q0
D0
Q1
Q2
D7
Q3
C
Q0
D0
Q1
Q2
D7
Q3
C
Q0
D0
Q1
Q2
D7
Q3
C
Q0
D0
Q1
Q2
D7
Q3
C
D0
Q0
Q1
Q2
D7
Six bit output
word yielding
number of
highest priority
channel present
at input
MSB
MECL Data
DL122 — Rev 6
3–91
MOTOROLA
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