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參數(shù)資料
| 型號(hào)： | TSB21LV03BI |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | IEEE 1394-1995 Triple-Cable Transceiver/Arbiter(IEEE1394-1995 三電纜收發(fā)器/判優(yōu)器) |
| 中文描述： | 電機(jī)及電子學(xué)工程師聯(lián)合會(huì)1394-1995三線收發(fā)器/仲裁器（IEEE1394連接- 1995三電纜收發(fā)器/判優(yōu)器） |
| 文件頁數(shù)： | 22/25頁 |
| 文件大?。?/td> | 351K |
| 代理商： | TSB21LV03BI |
TSB21LV03BI
IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER
SGLS108 – FEBRUARY 1999
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
Receive
When data is received by the phy from the serial bus, the phy transfers the data to the LLC for further processing.
The phy asserts a receive state on the CTLn terminals and asserts a 1 on each Dn terminal. The phy indicates
the start of the packet by placing the speed code on the data bus. The phy then proceeds with the transmittal
of the packet to the LLC on the Dn terminals while still keeping the receive status on the CTLn terminals. Once
the packet has been completely transferred, the phy asserts an idle state on the CTLn terminals, completing
the receive operation.
NOTE:
The speed is a phy-LLC protocol and not included in the CRC.
10
10
10
10
Phy
CTL0, CTL1
10
00
00
10
00
1111
SPD
D0
D1
Phy
D0 – D3
Dn
0000
0000
1111
0000
NOTE A: SPD = Speed Code
D0 => Dn = Packet data
Figure 9. Receive Timing Waveforms
Table 11. Speed Code for the Receiver
D0 – D3
00YY
0100
Data Rate
100 Mbit/s
200 Mbit/s
Y = Transmitted as 0, ignored on receive.
Power Class Bits in Self-ID Packet
Table 12 describes the meaning of the power-class bits in the pwr field of the Self-ID packet. Bit 21 is transmitted
first, followed by bit 22 and then bit 23. This power-field bit description complies with the IEEE 1394-1995
standard.
Table 12. Self-ID Packet Pwr-Field Bit Description
PC [21:23]
DESCRIPTION
000
Node does not need power and does not repeat power.
001
Node is self powered, and provides a minimum of 15 W to the bus.
010
Node is self powered, and provides a minimum of 30 W to the bus.
011
Node is self powered, and provides a minimum of 45 W to the bus.
100
Node may be powered from the bus, and is using up to 1 W.
101
Node may be powered from the bus, and is using up to 1 W. An additional 2 W is needed to enable the LLC and higher
layers.
110
Node may be powered from the bus, and is using up to 1 W. An additional 5 W is needed to enable the LLC and higher
layers.
111
Node may be powered from the bus, and is using up to 1 W. An additional 9 W is needed to enable the LLC and higher
layers.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TSB21LV03C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER |
| TSB21LV03CHV | 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER |
| TSB21LV03CMHV | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TSB21LV03CMHVB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TSB21LV03CPM | 制造商:TI 制造商全稱:Texas Instruments 功能描述:IEEE 1394-1995 TRIPLE-CABLE TRANSCEIVER/ARBITER |
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