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參數(shù)資料
| 型號： | UPD6708GS |
| 廠商： | NEC Corp. |
| 英文描述： | IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI |
| 中文描述： | IEBusa設備布薩間協(xié)議控制大規(guī)模集成電路 |
| 文件頁數(shù)： | 39/72頁 |
| 文件大小： | 292K |
| 代理商： | UPD6708GS |
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39
μ
PD6708
Table 6-2. Return Codes in Master Reception
Return Code Name
Code
Description
Master reception start
0100
This return code is generated when the master unit correctly receives the
message length code from the slave unit, informing the host controller of the
start of master reception.
Master receive data full
0101
Each time 20 bytes (RDB capacity) of master receive data is received, if RDB
is full, this return code makes a request to the host controller for a read of
receive data from RDB.
Master reception normal
termination
0110
Indicates that reception of the number of data bytes specified by the message
length bits has ended within one frame.
Termination during master
reception
0111
Indicates that the communication has ended without completion of transmis-
sion of the number of data bytes specified by the message length bits within
one frame.
Termination during master reception is not flagged if the unit loses once in
arbitration, and reception is attempted up to three times.
6.3
Return Codes in Slave Reception
Table 6-3 shows the return codes placed in STR when data or a command is received from the master unit.
Table 6-3. Return Codes in Slave Reception
Return Code Name
Code
Description
Slave reception start
1000
This return code is generated when the slave unit correctly receives the
message length codes from the master unit, informing the host controller of
the start of slave reception.
Slave receive data full
1001
Each time 20 bytes (RDB capacity) of slave receive data is received, if RDB is
full, this return code makes a request to the host controller for a read of receive
data from RDB.
Slave reception normal
termination
1010
Indicates that reception of the number of data bytes specified by the message
length bits has ended within one frame.
Termination during slave
reception
1011
Indicates that the communication has ended without completion of transmis-
sion of the number of data bytes specified by the message length bits within
one frame.
6.4
Return Codes in Broadcast Reception
Table 6-4 shows the return codes placed in STR when data or a command is received from the master unit in broadcast
communication.
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| UPD67A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontrollers for Remote Controllers Pamphlet | Pamphlet[11/2002] |
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