參數(shù)資料
型號(hào)： M37481M8T-XXXFP
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44
封裝： 10 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44
文件頁(yè)數(shù)： 34/100頁(yè)
文件大?。?/td> 1457K
代理商： M37481M8T-XXXFP
MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
36
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
Fig. 37 Priority control at simplified SAEJ1850
BU S+
BU S-
Unit
A
Unit
B
Unit A
LAN data bus
Unit B
Continue to transmit
Stop transmitting
Data collision
LAN data bus
Application Example
Priority Control at Simplified SAEJ1850
At simplified SAEJ1850 communication, when multiple units start
to transmit data at the same time, priority control is exerted.
On the LAN data bus, the “H” level has priority over the “L” level.
When an “H” level collides with an “L” level, the LAN data bus sta-
tus goes to the “H” level.
For example, when unit A outputs “H” and unit B outputs “L” at the
same time in Figure 37, the LAN data bus goes to “H”. Accord-
ingly, unit A takes priority of control and continues its transmission,
and unit B stops its transmission immediately.
In this way, the 7480/7481 group exerts priority control for each bit
and finally allows only the highest-priority unit to transmit data.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37481M8T-XXXSP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37481M8-XXXFP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
M37481M8-XXXSP 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
M37481MT-088FP 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37481MXT 制造商:MITSUBISHI 制造商全稱(chēng):Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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