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| 型号： | TSB41BA3AIGGM |
| 厂商： | Texas Instruments, Inc. |
| 英文描述： | IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER |
| 中文描述： | 的IEEE 1394b三端口电缆收发器/仲裁者 |
| 文件页数： | 51/66页 |
| 文件大小： | 895K |
| 代理商： | TSB41BA3AIGGM |
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SLLS618B JUNE 2004 REVISED AUGUST 2004
51
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION (1394B INTERFACE)
The TSB41BA3A normally controls the CTL0CTL1 and D0D7 bidirectional buses. The LLC is allowed to drive
these buses only after the LLC has been granted permission to do so by the PHY.
There are four operations that may occur on the PHY-LLC interface: link service request, status transfer, data
transmit, and data receive. The LLC issues a service request to read or write a PHY register or to request the
PHY to gain control of the serial-bus in order to transmit a packet.
The PHY may initiate a status transfer either autonomously or in response to a register read request from the
LLC.
The PHY initiates a receive operation whenever a packet is received from the serial-bus.
The PHY initiates a transmit operation after winning control of the serial-bus following a bus-request by the LLC.
The transmit operation is initiated when the PHY grants control of the interface to the LLC.
Table 23 and Table 24 show the encoding of the CTL0CTL1 bus.
Table 23. CTL Encoding When PHY Has Control of the Bus
CTL0
CTL1
NAME
DESCRIPTION
0
0
Idle
No activity (this is the default mode)
0
1
Status
Status information is being sent from the PHY to the LLC.
1
0
Receive
An incoming packet is being sent from the PHY to the LLC.
1
1
Grant
The LLC has been given control of the bus to send an outgoing packet.
Table 24. CTL Encoding When LLC Has Control of the Bus
CTL0
CTL1
NAME
DESCRIPTION
0
0
Idle
The LLC releases the bus (transmission has been completed).
0
1
Transmit
An outgoing packet is being sent from the LLC to the PHY.
1
0
Reserved
Reserved
1
1
Hold/More
Information
The LLC is holding the bus while data is being prepared for transmission, or the LLC is sending a request to
arbitrate for access to the bus, or the LLC is identifying the end of a subaction gap to the PHY.
LLC service request
To request access to the bus, to read or write a PHY register, or to send a link notification to PHY, the LLC sends
a serial bit stream on the LREQ terminal as shown in Figure 23.
Each cell represents one clock sample time, and n is the number of bits in the request stream.
LR1
LR2
LR3
LR (n-2)
LR0
LR (n-1)
Figure 23. LREQ Request Stream
The length of the stream varies depending on the type of request as shown in Table 25.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TSB41BA3AIPFP | 功能描述:缓冲器和线路驱动器 Three-Port Cable Xcvr/Arbiter RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| TSB41BA3APFP | 功能描述:缓冲器和线路驱动器 Three-Port Cable Xcvr/Arbiter RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| TSB41BA3APFPG4 | 功能描述:1394 接口集成电路 Three-Port Cable Xcvr/Arbiter RoHS:否 制造商:Texas Instruments 类型:Link Layer Controller 工作电源电压: 封装 / 箱体:LQFP 封装:Tray |
| TSB41BA3ATPFPEP | 功能描述:缓冲器和线路驱动器 Mil Enh 3-Port Cable Xcvr/Arbiter RoHS:否 制造商:Micrel 输入线路数量:1 输出线路数量:2 极性:Non-Inverting 电源电压-最大:+/- 5.5 V 电源电压-最小:+/- 2.37 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Reel |
| TSB41BA3B | 制造商:TI 制造商全称:Texas Instruments 功能描述:IEEE 1394b THREE-PORT CABLE TRANSCEIVER/ARBITER |
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