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參數(shù)資料
| 型號： | ISP1161BM |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | Full-speed Universal Serial Bus single-chip host and device controller |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP64 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-414-1, LQFP-64 |
| 文件頁數(shù)： | 41/127頁 |
| 文件大?。?/td> | 2762K |
| 代理商： | ISP1161BM |
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Philips Semiconductors
ISP1161
Full-speed USB single-chip host and device controller
Product data
Rev. 01 — 3 July 2001
41 of 130
9397 750 08313
Philips Electronics N.V. 2001. All rights reserved.
With the device in a suspended state it will consume considerably less power by
turning off the internal 48 MHz clock, PLL and crystal, and setting the internal
regulator to power-down mode. The ISP1161 suspend and resume clock scheme is
shown in
Figure 37
.
Remark:
ISP1161 can be put into a fully suspended mode only after both the HC and
the DC go into the suspended mode, when the crystal can be turned off and the
internal regulator can be put into power-down mode.
Pin H_SUSPEND is the sensing output pin for HC’s suspended state. When the HC
goes into SUSPEND state, this pin will output a HIGH level (logic 1). This pin is
cleared to LOW (logic 0) level only when the HC is put into a RESET state or
OPERATIONAL state (refer to the HcControl register bits 7 to 6, 01H - Read, 81H -
Write). By setting bit 11, SuspendClkNotStop, of the HcHardwareConfiguration
register (20H - Read, A0H - Write), you can also define such that when the HC goes
into SUSPEND state, its internal clock is stopped or kept running. After HC enters the
SUSPEND State for 1.3 ms, the internal clock will be stopped if bit
SuspendClkNotStop is logic 0.
10.2 HC wakeup from suspended state
There are three methods to wake up the HC from the USB SUSPEND state:
hardware wakeup, software wakeup, and USB bus resume. They are described as
follows:
10.2.1
Wakeup by pin H_WAKEUP
Pins H_SUSPEND and H_WAKEUP provide hardware wakeup, a way of remote
wakeup control for the HC without the need to access the HC internal registers.
H_WAKEUP is an external wakeup control input pin for the HC. After the HC goes
into SUSPEND state, it can be woken up by sending a HIGH level pulse to pin
H_WAKEUP. This will turn on the HC’s internal clock, and set bit 6, ClkReady, of the
Hc
μ
PInterrupt register (24H - Read, A4H - Write). Under the SUSPEND state, once
pin H_WAKEUP goes HIGH, after 160
μ
s, the internal clock will be up. After the
internal clock is up, it will be kept running at least 1.14 ms depending on the status of
pin H_WAKEUP. If pin H_WAKEUP is HIGH, then the internal clock will be kept
running. If pin H_WAKEUP is LOW, then the internal clock can be kept running for
1.14 ms only, unless the microprocessor sets the HC into OPERATIONAL state
during this time.
10.2.2
Wakeup by pin CS (software wakeup)
During the SUSPEND state, an external microprocessor issues the chip select signal
through pin CS to ISP1161. This method of access to ISP1161 internal registers is a
software wakeup.
10.2.3
Wakeup by USB devices
For the USB bus resume, a USB device attached to the root hub port issues a
resume signal to the HC through the USB bus, switching the HC from SUSPEND
state to RESUME State. This will also set the ResumeDetected bit, bit 3 of the
HcInterruptStatus register (03H - Read, 83H - Write).
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相關(guān)代理商/技術(shù)參數(shù) |
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| ISP1181 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus interface device |
| ISP1181A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus peripheral controller |
| ISP1181ABS | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus peripheral controller |
| ISP1181ABS,518 | 功能描述:USB 接口集成電路 USB 1.1 ADV 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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1181ABS,551 | 功能描述:USB 接口集成電路 USB 1.1 ADVANCED 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(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
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