參數(shù)資料
型號(hào)： CY7C65640-LFC
廠商： CYPRESS SEMICONDUCTOR CORP
元件分類： 總線控制器
英文描述： TetraHub High-speed USB Hub Controller
中文描述： UNIVERSAL SERIAL BUS CONTROLLER, QCC56
封裝： 8 X 8 MM, QFN-56
文件頁(yè)數(shù)： 15/27頁(yè)
文件大小： 675K
代理商： CY7C65640-LFC
CY7C65640
Document #: 38-08019 Rev. *E
Page 15 of 27
7.8
Hub Descriptor
Note:
4.
This value is configured through the External EEPROM.
Byte
0
1
2
3,4
All Speeds
0x09
0x29
0x04
[4]
0x0089
[4]
Field Name
bLength
bDescriptorType
bNbrPorts
wHubCharacteristics
Description
9 Bytes
HUB Descriptor
Number of ports supported
b1, b0: Logical Power Switching Mode
00: Ganged power switching (all ports’ power at once)
01: Individual port power switching (Default in TetraHub)
b2: Identifies a Compound Device,
0: Hub is not part of a compound device (Default in TetraHub),
1: Hub is part of a compound device.
b4, b3: Over-current Protection Mode
00: Global Overcurrent Protection. The hub reports overcurrent as a
summation of all ports current draw, without a breakdown of individual port
overcurrent status.
01: Individual Port Overcurrent Protection. The hub reports overcurrent on
a per-port basis. Each port has an over-current status (Default in TetraHub).
1X: No Overcurrent Protection. This option is allowed only for bus-powered
hubs that do not implement overcurrent protection.
b6, b5: TT Think Time
00: TT requires at most 8 FS bit times of inter transaction gap on a
full-/low-speed downstream bus (Default in TetraHub).
01: TT requires at most 16 FS bit times.
10: TT requires at most 24 FS bit times.
11: TT requires at most 32 FS bit times.
b7: Port Indicators Supported,
0: Port Indicators are not supported on its downstream facing ports and
the PORT_INDICATOR request has no effect.
1: Port Indicators are supported on its downstream facing ports and the
PORT_INDICATOR request controls the indicators. See Section 4 and 9
(Default in TetraHub).
b15, ..b8: Reserved
Time from when the port is powered to when the power is good on that port
Maximum current requirement for the Hub Controller
Indicates if the port has a removable device attached
Required for compatibility with software written for 1.0 compliant devices
5
6
7
8
0x32
[4]
0x64
[4]
0x00
[4]
0xFF
[4]
bPwrOn2PwrGood
bHubContrCurrent
bDeviceRemovable
bPortPwrCtrlMask
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CY7C65642-28LTXC 功能描述:USB 接口集成電路 TetraHub Ctrl USB2.0 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型: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
CY7C65642-28LTXCT 制造商:Cypress Semiconductor 功能描述:USB HIGH SPEED HUBS - Tape and Reel 制造商:Cypress Semiconductor 功能描述:INTERFACE CONTROLLER
CY7C65642-48AXC 功能描述:USB 接口集成電路 CY7C65642-48AXC RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型: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
CY7C65642-48AXCT 功能描述:USB 接口集成電路 CY7C65642-48AXCT RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型: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
CY7C66013C-PVXC 功能描述:8位微控制器 -MCU USB Hubs RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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