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參數(shù)資料
| 型號： | UPD6708CX |
| 廠商： | NEC Corp. |
| 英文描述： | IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI |
| 中文描述： | IEBusa設(shè)備布薩間協(xié)議控制大規(guī)模集成電路 |
| 文件頁數(shù)： | 9/72頁 |
| 文件大?。?/td> | 292K |
| 代理商： | UPD6708CX |
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9
μ
PD6708
2.2.3 Communication address
With the IEBus, a 12-bit communication address is assigned to each unit. The communication address is made up as
follows.
Higher 4 bits: Group number (number which identifies the group to which the unit belongs)
Lower 4 bits: Unit number (number which identifies a unit within a group)
2.2.4 Broadcast communication
In ordinary communication, there is only one master unit and one slave unit, and transmission or reception is performed
on an one-to-one basis. In broadcast communication, however, there are a number of slave units and the master unit
performs transmission with these slave units. Because there are several slave units, no acknowledge signals is returned
from the slave units during communication.
Whether broadcast communication or ordinary communication is performed is specified by the broadcast bit (for the
broadcast bit, see
2.3 (1) <2> “Broadcast bit”
).
There are two kinds of broadcast communication, as follows.
(1) Group broadcast communication
Broadcast communication is performed to the units in a group whose group numbers are the same as that specified by
the higher 4 bits of the communication address.
(2) General broadcast communication
Broadcast communication is performed to all units irrespective of their group numbers.
Group broadcast communication or general broadcast communication is identified by the value of a salve address (for
the slave address, see
2.3 (3) “Slave address field”
).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD6708GS | 制造商:NEC 制造商全稱:NEC 功能描述:IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI |
| UPD6708GS(A) | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD67100 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
| UPD67101 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
| UPD67240 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ASIC |
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