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參數(shù)資料
| 型號(hào)： | 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(shù)： | 4/57頁 |
| 文件大小： | 810K |
| 代理商： | TSB81BA3I |
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SLLS559B DECEMBER 2002 REVISED OCTOBER 2003
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
The LPS (link power status) terminal works with the LKON/DS2 terminal to manage the power usage in the node.
The LPS signal from the LLC is used in conjunction with the LCtrl bit (see Table 1 and Table 2 in the
APPLICATION INFORMATION section) to indicate the active/power status of the LLC. The LPS signal also
resets, disables, and initializes the PHY-LLC interface (the state of the PHY-LCC interface is controlled solely
by the LPS input regardless of the state of the LCtrl bit).
The LPS input is considered inactive if it remains low for more than the LPS_RESET time (see the LPS terminal
definition) and is considered active otherwise. When the TSB81BA3 detects that the LPS input is inactive, the
PHY-LLC interface is placed into a low-power reset state in which the CTL and D outputs are held in the logic
0 state and the LREQ input is ignored; however, the PCLK output remains active. If the LPS input remains low
for more than the LPS_DISABLE time (see the LPS terminal definition), then the PHY-LLC interface is put into
a low-power disabled state in which the PCLK output is also held inactive. The TSB81BA3 continues the
necessary repeater functions required for normal network operation regardless of the state of the PHY-LLC
interface. When the interface is in the reset or disabled state and the LPS input is again observed active, the
PHY initializes the interface and returns to normal operation. The PHY-LLC interface is also held in the disabled
state during hardware reset. When the LPS terminal is returned to an active state after being sensed as having
entered the LPS_DISABLE time, the TSB81BA3 issues a bus reset. This broadcasts the node self-ID packet,
which contains the updated L bit state (the PHY LLC now being accessible).
The PHY uses the LKON/DS2 terminal to notify the LLC to power up and become active. When activated, the
output LKON/DS2 signal is a square wave. The PHY activates the LKON/DS2 output when the LLC is inactive
and a wake-up event occurs. The LLC is considered inactive when either the LPS input is inactive, as described
above, or the LCtrl bit is cleared to 0. A wake-up event occurs when a link-on PHY packet addressed to this node
is received, or conditionally when a PHY interrupt occurs. The PHY deasserts the LKON/DS2 output when the
LLC becomes active (both LPS sensed as active and the LCtrl bit set to 1). The PHY also deasserts the
LKON/DS2 output when a bus reset occurs, unless a PHY interrupt condition exists which would otherwise
cause LKON/DS2 to be active. If the PHY is power cycled and the power class is 0 through 4, then the PHY
asserts LKON/DS2 for approximately 167
μ
s or until both the LPS is active and the LCtrl bit is 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)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(shù)據(jù)速率:2000 Kbps 調(diào)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(shù)據(jù)速率:2000 Kbps 調(diào)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(shù)據(jù)速率:2000 Kbps 調(diào)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(shù)據(jù)速率:2000 Kbps 調(diào)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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