- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383982 > UPD6708 (NEC Corp.) IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI PDF資料下載
參數(shù)資料
| 型號： | UPD6708 |
| 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)： | 45/72頁 |
| 文件大小： | 292K |
| 代理商： | UPD6708 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁當(dāng)前第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁
45
μ
PD6708
Table 7-2. Timing for Reading Transmit Data from WDB
(The minimum time after transmission start return code (0H) is set)
Transmit Data
Timing for Reading Transmit Data from WDB (
μ
s)
Mode 0
Mode 1
Mode 2
Transmit data (first byte)
Approx. 1580
Approx. 400
Approx. 290
Transmit data (second byte)
Approx. 3160
Approx. 800
Approx. 580
:
:
:
:
Transmit data (N-th byte)
Approx. 1580
×
N
Approx. 400
×
N
Approx. 290
×
N
7.2.2
Transmitting slave status address and lock address
When the
μ
PD6708 receives 0H, 4H, 5H, and 6H as control bits from the master unit, the slave status and lock address
are generated automatically and sent to the master unit. As a result, there is no necessity for the host controller to be involved
in the transmission of the slave status and lock address.
7.3
Master Reception
When a unit becomes a master unit by setting 0H, 3H, 4H, 5H, 6H, and 7H as control bits and executing the MREQ1
or MREQ2 command, and receives data, slave status and lock address from the slave unit, the following will occur.
(1)
When the master unit returns an acknowledge in the message length field, the slave address, control bits and message
length bits are placed in the read data buffer (RDB) by the MREQ1 command as shown in Figure 7-4, the “master reception
start” return code (6H) is placed in STR, and an interrupt request is generated.
Figure 7-4. Data Exchange During Master Reception (Contents of RDB)
(2)
(3)
Each time one byte of receive data is received, it is placed in RDB.
Each time 20 bytes (RDB capacity) of receive data are received, if RDB is full, a “master receive buffer full” return code
(5H) is placed in STR, and an interrupt request is generated.
After one frame of data is placed in RDB, a “master reception normal termination” return code (6H) is placed in STR
and an interrupt request is generated.
If a communication error occurs during reception and communication stops without receiving all of the data transmitted
from the slave unit, a “termination during master reception” return code (7H) is placed in STR and an interrupt request
is generated.
(4)
(5)
The areas where
μ
PD6708 places receive data, etc., in RDB are shown below.
Slave Address (12 Bits)
First Byte
Second Byte
Third Byte
Fourth Byte Onward
RDB
Message Length Bits
Control Bits
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD6708CX | IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI |
| UPD6708GS | IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI |
| UPD6951 | 6 BIT D/A CONVERTER FOR VIDEO SIGNAL PROCESSING CMOS LSI |
| UPD6951C | 6 BIT D/A CONVERTER FOR VIDEO SIGNAL PROCESSING CMOS LSI |
| UPD6951G | 6 BIT D/A CONVERTER FOR VIDEO SIGNAL PROCESSING CMOS LSI |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD6708CX | 制造商:NEC 制造商全稱:NEC 功能描述:IEBusa Inter Equipment Busa PROTOCOL CONTROL LSI |
| 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。