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參數(shù)資料
| 型號： | GL852-MSGXX |
| 廠商： | Genesys Logic, Inc. |
| 英文描述： | USB 2.0 MTT HUB Controller |
| 中文描述： | MTT法的USB 2.0集線器控制器 |
| 文件頁數(shù)： | 17/31頁 |
| 文件大?。?/td> | 516K |
| 代理商： | GL852-MSGXX |
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GL852 USB 2.0 MTT HUB Controller
2000-2007 Genesys Logic Inc. - All rights reserved.
Page 17
5.1.10. TT (Transaction Translator)
TT implements the control logic defined in section 11.14 ~ 11.22 of USB specification Revision 2.0. TT
basically handles the unbalanced traffic speed between the USPORT (operating in HS) and DSPORTS
(operating in FS/LS) of hub. GL852 adopts multiple TT architecture to provide the most performance
effective solution. Multiple TT provides control logics for each downstream port respectively.
5.1.11 REPEATER/TT routing logic
REPEATER and TT are the major traffic control machines in the USB 2.0 hub. Under situation that
USPORT and DSPORT are signaling in the same speed, REPEATER/TT routing logic switches the traffic
channel to the REPEATER. Under situation that USPORT is in the high speed signaling and DSPORT is in
the full/low speed signaling, REPEATER/TT routing logic switches the traffic channel to the TT.
5.1.11.1 Connected to 1.1 Host/Hub
If an USB 2.0 hub is connected to the downstream port of an USB 1.1 host/hub, it will operate in USB 1.1
mode. For an USB 1.1 hub, both upstream direction traffic and downstream direction traffic are passing
through REPEATER. That is, the REPEATER/TT routing logic will route the traffic channel to the
REPEATER.
USB1.1 HOST/HUB
REPEATER
TT
DSPORT operating
in FS/LS signaling
USPORToperating
in FS signaling
Traffic channel
is routed to
REPEATER
TT
Figure 5.1 - Operating in USB 1.1 scheme
5.1.11.2 Connected to USB 2.0 Host/Hub
If an USB 2.0 hub is connected to an USB 2.0 host/hub, it will operate in USB 2.0 mode. The upstream port
signaling is in high speed with bandwidth of 480 Mbps under this environment. The traffic channel will
then be routed to the REPEATER when the device connected to the downstream port is signaling also in
high speed. On the other hand, the traffic channel will then be routed to TT when the device connected to
the downstream port is signaling in full/low speed.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| GL852-MSNXX | USB 2.0 MTT HUB Controller |
| GL852-ONGXX | USB 2.0 MTT HUB Controller |
| GL852 | USB 2.0 MTT HUB Controller |
| GL852-MNGXX | USB 2.0 MTT HUB Controller |
| GL852-MNNXX | USB 2.0 MTT HUB Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| GL852-MSNXX | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 MTT HUB Controller |
| GL852-ONGXX | 制造商:GENESYS 制造商全稱:GENESYS 功能描述:USB 2.0 MTT HUB Controller |
| GL-85646 | 功能描述:基本/快動(dòng)開關(guān) SAFETY RoHS:否 制造商:Omron Electronics 觸點(diǎn)形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| GL-85710 | 功能描述:基本/快動(dòng)開關(guān) LIMIT SWITCH RoHS:否 制造商:Omron Electronics 觸點(diǎn)形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
| GL-85711 | 功能描述:基本/快動(dòng)開關(guān) LIMIT SWITCH RoHS:否 制造商:Omron Electronics 觸點(diǎn)形式:SPDT 執(zhí)行器:Lever 電流額定值:5 A 電壓額定值 AC:250 V 電壓額定值 DC:30 V 功率額定值: 工作力:120 g IP 等級:IP 67 NEMA 額定值: 端接類型:Wire 安裝:Panel |
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