參數(shù)資料
型號： AN1687
廠商： Motorola, Inc.
英文描述： A FULL-FEATURED WIRELESS INTERFACE FOR RS-232 COMMUNICATIONS
中文描述： 一個全功能的無線接口為RS - 232通信
文件頁數(shù)： 6/12頁
文件大小： 166K
代理商： AN1687
ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
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MOTOROLA SEMICONDUCTOR APPLICATION INFORMATION
Figure 6. Encoder
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Figure 7 illustrates the encoding scheme which was
developed for this purpose. Four additional bits surround a
data byte: the I bit, I bit, D/C bit and D/C bit. The function of
these bits are:
I (Invert) Bit:
A logic low on this bit indicates that the data
byte and D/C bit are in true form. A logic high on this bit
indicates that the data byte and D/C bit are complemented
from their original form.
I (Invert Bar) Bit:
Just the complement of the I bit.
D/C (Data/Control) Bit:
A logic low on this bit indicates
that the data byte should be interpreted as a control word. A
logic high on this bit indicates that the data byte contains real
data.
D/C (Data/Control):
Just the complement of the D/C bit.
Figure 7.
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