參數(shù)資料
型號: 8XC196LX
英文描述: 8XC196Lx - 8XC196Lx Supplement to 8X196Kx. 8X196Jx. 87C196CA User's Manual
中文描述: 8XC196Lx - 8XC196Lx補編8X196Kx。 8X196Jx。 87C196CA用戶手冊
文件頁數(shù): 77/136頁
文件大?。?/td> 659K
代理商: 8XC196LX
8-11
J1850 COMMUNICATIONS CONTROLLER
Figure 8-8. Definition for Start and End of Frame Symbols
Table 8-4 details the symbol timing characteristics supported by the 87C196LB.
Table 8-4. Huntzicker Symbol Timing Characteristics
Name
Symbol
Bus Level
T
TX
min
60
122
122
60
193
193
271
>300
768
T
TX
nom
64
128
128
64
200
200
280
T
TX
max
68
134
134
68
207
207
289
T
RX
min
34
96
96
34
163
163
239
>300
>239
T
RX
max
<96
<163
<163
<96
<239
<239
<300
Units
Logic Level 0
0
Passive
Active
Passive
Active
Active
Passive
Passive
Passive
Active
μs
μs
μs
μs
μs
μs
μs
μs
μs
Logic Level 1
1
Start of Frame
End of Data
End of Frame
In-frame Separation
Break
NOTE:
Timings are based on the standard bus rate of 10.4 Kb/s. When operating in 4x mode, the bus
rate becomes 41.6 Kb/s and all symbol timings are one fourth that shown.
SOF
EOD
EOF
IFS
BRK
A5221-01
0
1
0
1
"Break Signal (BRK)"
"In-frame Separation (IFS)"
300μS+
0
1
200μS
0
1
"End of Frame (EOF)"
280μS
0
1
768μS+
200μS
"End of Data (EOD)"
"Start of Frame (SOF)"
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