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參數資料
| 型號： | M37481E8-XXXSP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP42 |
| 封裝： | 0.600 INCH, 1.78 MM PITCH, SHRINK, PLASTIC, DIP-42 |
| 文件頁數： | 34/100頁 |
| 文件大?。?/td> | 1457K |
| 代理商： | M37481E8-XXXSP |
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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.
相關PDF資料 |
PDF描述 |
|---|---|
| M37480M2T-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| M37480E8SP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| M37480E8-XXXSP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| M37481E8FP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP44 |
| M37480E8FP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO32 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| M37481M2T-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481M2T-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481M4T-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES |
| M37481M4T-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES |
| M37481M4-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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