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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： | 59/66页 |
| 文件大小： | 895K |
| 代理商： | TSB41BA3AIGGM |
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SLLS618B JUNE 2004 REVISED AUGUST 2004
59
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION (1394B INTERFACE)
receive (continued)
The sequence of events for a null packet reception is as follows:
(a) Receive operation initiated. The PHY indicates a receive operation by asserting receive on the CTL lines.
Normally, the interface is idle when receive is asserted. However, the receive operation may interrupt a
status transfer operation that is in progress so that the CTL lines may change from status to receive without
an intervening idle.
(b) Data-on indication. The PHY asserts the data-on indication code on the D lines for one or more cycles.
(c) Receive operation terminated. The PHY terminates the receive operation by asserting idle on the CTL lines.
The PHY asserts at least one idle cycle following a receive operation.
Table 36. Receive Speed Codes and Format
D0D7
DATA RATE AND FORMAT
0000 0000
S100 legacy
0000 0001
S100 beta
0000 0100
S200 legacy
0000 0101
S200 beta
0000 1000
S400 legacy
0000 1001
S400 beta
0000 1101
S800 beta
1111 1111
Data-on indication
All Others
Reserved
NOTE: Y = Output as 1 by PHY, ignored by LLC.
X = Output as 0 by PHY, ignored by LLC.
transmit
When the LLC issues a bus request through the LREQ terminal, the PHY arbitrates to gain control of the bus.
If the PHY wins arbitration for the serial bus, then the PHY-LLC interface bus is granted to the LLC by asserting
the grant state (11b) on the CTL terminals and the grant type on the D terminals for one PCLK cycle, followed
by idle for one clock cycle. The LLC then takes control of the bus by asserting either idle (00b), hold (11b) or
transmit (01b) on the CTL terminals. If the PHY does not detect a hold or transmit state within eight PCLK cycles,
then the PHY takes control of the PHY-link interface. The hold state is used by the LLC to retain control of the
bus while it prepares data for transmission. The LLC may assert hold for zero or more clock cycles (that is, the
LLC need not assert hold before transmit). During the hold state, the LLC is expected to drive the D lines to 0.
The PHY asserts data-prefix on the serial bus during this time.
When the LLC is ready to send data, the LLC asserts transmit on the CTL terminals as well as sending the first
bits of packet data on the D lines. The transmit state is held on the CTL terminals until the last bits of data have
been sent. The LLC then asserts either hold or idle on the CTL terminals for one clock cycle. If the hold is
asserted, then the hold is immediately followed by one clock cycle of idle. The link then releases the PHY-link
interface by putting the CTL and D terminals in a high-impedance state. The PHY then regains control of the
PHY-link interface.
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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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