參數(shù)資料
型號： ISP1183BS
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： Low-power Universal Serial Bus interface device with DMA
中文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQCC32
封裝： 5 X 5 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT-617-1, HVQFN-32
文件頁數(shù)： 22/62頁
文件大小： 295K
代理商： ISP1183BS
Philips Semiconductors
ISP1183
Low-power USB interface device with DMA
Product data
Rev. 01 — 24 February 2004
22 of 62
9397 750 11804
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12. Suspend and resume
12.1 Suspend conditions
The ISP1183 detects a USB suspend status when a constant idle state is present on
the USB bus for more than 3 ms.
The bus-powered devices that are suspended must not consume more than 500
μ
A
of current. This is achieved by shutting down power to system components or
supplying them with a reduced voltage.
The steps leading up to suspend status are as follows:
1. On detection of a wakeup-to-suspend transition, the ISP1183 sets bit SUSPND in
the Interrupt register. This will generate an interrupt if bit IESUSP in the Interrupt
Enable register is set.
2. When the firmware detects a suspend condition, it must prepare all system
components for the suspend state:
a. All signals connected to the ISP1183 must enter appropriate states to meet
the power consumption requirements of the suspend state.
b. All input pins of the ISP1183 must have a CMOS LOW or HIGH level.
3. In the interrupt service routine, the firmware must check the current status of the
USB bus. When bit BUSTATUS in the Interrupt register is logic 0, the USB bus
has left the suspend mode and the process must be aborted. Otherwise, the next
step can be executed.
4. To meet the suspend current requirements for a bus-powered device, the internal
clocks must be switched off by clearing bit CLKRUN in the Hardware
Configuration register.
5. When the firmware has set and cleared bit GOSUSP in the Mode register, the
ISP1183 enters the suspend state. In powered-off application, the ISP1183
asserts output SUSPEND and switches off the internal clocks after 2 ms.
Figure 11
shows a typical timing diagram.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1183BS,118 功能描述:USB 接口集成電路 FULL-SPD USB2 DEVICE 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1183BS,151 功能描述:USB 接口集成電路 FULL-SPD USB2 DEVICE 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1183BS,157 功能描述:USB 接口集成電路 DO NOT USE ORDER -S OR -T PART 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
ISP1183BSFA 功能描述:IC USB HOST CTRL LOW-SPD 32HVQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標準包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
ISP1183BS-S 功能描述:USB 接口集成電路 FULL-SPD USB2 DEVICE 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20
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