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參數資料
| 型號： | TSB81BA3I |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER |
| 中文描述： | 的IEEE 1394b三端口電纜收發(fā)器/仲裁者 |
| 文件頁數： | 45/57頁 |
| 文件大小： | 810K |
| 代理商： | TSB81BA3I |
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SLLS559B DECEMBER 2002 REVISED OCTOBER 2003
45
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION (1394B INTERFACE)
LLC service request (continued)
Table 26. Bus Request
BIT(s)
NAME
DESCRIPTION
0
Start bit
Indicates the beginning of the transfer (always 1)
14
Request type
Indicates the type of bus request. See Table 25.
5
Request format
Indicates the packet format to be used for packet transmission. See Table 27.
69
Request speed
Indicates the speed at which the link sends the data to the PHY. See Table 28 for the encoding of this field.
10
Stop bit
Indicates the end of the transfer (always 0). If bit 6 is 0, then this bit may be omitted.
Table 27 shows the 1-bit request format field used in bus requests.
Table 27. Bus Request Format Encoding
LR5
DATA RATE
0
Link does not request either beta or legacy packet format for bus transmission
1
Link requests beta packet format for bus transmission
Table 28 shows the 4-bit request speed field used in bus requests.
Table 28. TBus Request Speed Encoding
LR6LR9
DATA RATE
0000
S100
0001
Reserved
0010
S200
0011
Reserved
0100
S400
0101
Reserved
0110
S800
All Others
Invalid
NOTE:
The TSB81BA3 accepts a bus request with an invalid speed code and processes the bus request
normally. However, during packet transmission for such a request, the TSB81BA3 ignores any data
presented by the LLC and transmits a null packet.
For a read register request, the length of the LREQ bit stream is 10 bits as shown in Table 29.
Table 29. Read Register Request
BIT(s)
NAME
DESCRIPTION
0
Start bit
Indicates the beginning of the transfer (always 1)
14
Request type
A 1010 indicates this is a read register request
58
Address
Identifies the address of the PHY register to be read
9
Stop bit
Indicates the end of the transfer (always 0)
For a write register request, the length of the LREQ bit stream is 18 bits as shown in Table 30.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TSB81BA3IPFP | 功能描述:射頻收發(fā)器 s800 3-Port Cable Xcvr/Arbiter RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數據速率:2000 Kbps 調制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| TSB81BA3IPFPEP | 功能描述:射頻收發(fā)器 Mil Enh 3-Port Cable Xcvr/Arbiter RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數據速率:2000 Kbps 調制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| TSB81BA3PFP | 功能描述:射頻收發(fā)器 s800 3-Port Cable Xcvr/Arbiter RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數據速率:2000 Kbps 調制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| TSB81BA3PFPG4 | 功能描述:射頻收發(fā)器 s800 3-Port Cable Xcvr/Arbiter RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數據速率:2000 Kbps 調制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| TSB82AA2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:1394b OHCI-LYNX CONTROLLER |
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