參數(shù)資料
型號: HC05V7GRS
英文描述: 68HC05V7 General Release Specification
中文描述: 68HC05V7一般版本規(guī)范
文件頁數(shù): 134/170頁
文件大?。?/td> 980K
代理商: HC05V7GRS
MOTOROLA
Page 120
SECTION 15: MESSAGE DATA LINK CONTROLLER
MC68HC05V7 Specification Rev. 1.0
15.5.4.7
Invalid Active Bit
If the active to passive transition beginning the next data bit or symbol occurs between the
passive to active transition beginning the current data bit or symbol and
a
, the current bit
would be invalid. See Figure 15-14(1).
15.5.4.8
Valid Active Logic One
If the active to passive transition beginning the next data bit or symbol occurs between
a
and
b
, the current bit would be considered a logic one. See Figure 15-14(2).
15.5.4.9
Valid Active Logic Zero
If the active to passive transition beginning the next data bit or symbol occurs between
b
and
c
, the current bit would be considered a logic zero. See Figure 15-14(3).
Figure 15-14 : J1850 VPW Active Symbols
a
b
c
b
a
(1) Invalid Active
Bit
(2) Valid Active
Logic One
(3) Valid Active
Logic Zero
64
μ
s
128
μ
s
d
(4) Valid SOF
Symbol
200
μ
s
d
e
(5) Valid BREAK
Symbol
c
280
μ
s
F
For More Information On This Product,
Go to: www.freescale.com
n
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