參數(shù)資料
型號(hào)： CY7C65640A
廠商： Cypress Semiconductor Corp.
英文描述： TetraHub High-Speed USB Hub Controller(TetraHub高速USB Hub控制器)
中文描述： TetraHub高速USB集線器控制器（TetraHub高速USB集線器控制器）
文件頁(yè)數(shù)： 4/21頁(yè)
文件大?。?/td> 513K
代理商： CY7C65640A
CY7C65640A
Document #: 38-08019 Rev. *H
Page 4 of 21
to inform the user of the current status of the port or the device
attached to the port and to guide the user through problem
resolution. Colors and blinking are used to provide information
to the user. The significance of the color of the LED depends
on the operational mode of the TetraHub. There are two
modes of operation for the TetraHub port indicators: automatic
and manual.
On power-up the TeraHub defaults to Automatic Mode, where
the color of the Port Indicator (Green, Amber, Off) indicates the
functional status of the TetraHub port. In Automatic Mode,
TetraHub will turn on the green LED whenever the port is
enabled and the amber LED when it has had an over-current
condition detected. The color of the port indicator is set by the
port state machine. Blinking of the LEDs is not supported in
Automatic Mode.
Table 4-1
below identifies the mapping of
color to port state in Automatic Mode.
In manual mode, the indicators are under the control of the
host, which can turn on one of the LEDs, or leave them off.
This is done by a system software USB Hub class request.
Blinking of the LEDs is supported in Manual Mode. The port
indicators allow the user to intervene on any error detection.
For example, when babble is detected on plugging in a
defective device, or on occurrence of an overcurrent condition,
the port indicators corresponding to the downstream port will
blink green or only light the amber LED, respectively.
Table 4-
2
below displays the color definition of the indicators when
TetraHub is in Manual Mode.
Note
. Information presented in
Table 4-1
and
Table 4-2
is from
USB 2.0 specification Tables 11-6 and 11-7, respectively.
Table 4-1. Automatic Port State to Port Indicator Color Mapping
Port
Switching
With
Downstream Facing Hub Port State
Disconnected, Disabled, Not
Configured, Resetting, Testing
Off
Powered Off
Enabled, Transmit,
or TransmitR
Green
Suspended, Resuming,
SendEOR, Restart_E /S
Off
Off or Amber if due to an
Overcurrent Condition
Off
Without
Off or Amber if due to an
Overcurrent Condition
Green
Off
Table 4-2. Port Indicator Color Definitions in Manual Mode
Color Definition
Port State
Off
Amber
Green
Blinking Off/Green
Blinking Off/Amber
Blinking Green/Amber
Not operational
Error condition
Fully Operational
Software Attention
Hardware Attention
Reserved
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CY7C65640ALFXC 制造商:Cypress Semiconductor 功能描述:
CY7C65640A-LFXC 功能描述:USB 接口集成電路 USB 2.0 4 Port Hub COM RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類(lèi)型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
CY7C65640A-LFXCT 功能描述:USB 接口集成電路 USB 2.0 4 Port Hub COM RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類(lèi)型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
CY7C65640A-LTXC 功能描述:USB 接口集成電路 USB HS Controller RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類(lèi)型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
CY7C65640A-LTXCKM 制造商:Cypress Semiconductor 功能描述:
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