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| 型号： | ISP1561BM,557 |
| 厂商： | ST-ERICSSON |
| 元件分类： | 总线控制器 |
| 英文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PQFP128 |
| 封装： | 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-420-1, LQFP-128 |
| 文件页数： | 7/103页 |
| 文件大小： | 457K |
| 代理商： | ISP1561BM,557 |
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ISP1561_2
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 5 March 2007
11 of 103
NXP Semiconductors
ISP1561
HS USB PCI Host Controller
7.
Functional description
7.1 OHCI Host Controller
An OHCI Host Controller transfers data to devices at the Original USB dened bit rate of
12 Mbit/s or 1.5 Mbit/s.
7.2 EHCI Host Controller
The EHCI Host Controller transfers data to a Hi-Speed USB compliant device at the
Hi-Speed USB dened bit rate of 480 Mbit/s. When the EHCI Host Controller has the
ownership of a port, OHCI Host Controllers are not allowed to modify the port register. All
additional port bit denitions required for the enhanced Host Controller are not visible to
the OHCI Host Controller.
7.3 Dynamic port-routing logic
The port-routing feature allows sharing of the same physical downstream ports between
the Original USB Host Controller and the Hi-Speed USB Host Controller. This requirement
provides four downstream ports that are multiplexed with the ports of the two OHCIs. The
rst and third downstream ports are always connected to the rst OHCI, and the second
and fourth downstream ports are always connected to the second OHCI.
The EHCI is responsible for the port-routing switching mechanism. Two register bits are
used for ownership switching. During power-on and system reset, the default ownership of
all downstream ports is OHCIs. The enhanced Host Controller Driver (HCD) controls the
ownership during normal functionality.
7.4 Hi-Speed USB analog transceivers
The Hi-Speed USB analog transceivers directly interface to the USB cables through
integrated termination resistors. These transceivers can transmit and receive serial data
at all data rates: high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed
(1.5 Mbit/s).
7.5 LED indicators for downstream ports
Indication of a good USB connection is provided through the GoodLink technology
(open-drain, a maximum current of 20 mA). During enumeration, LED indicators blink on
momentarily corresponding to the enumeration trafc of ISP1561 downstream ports. The
LED also blinks on whenever there is valid trafc to the downstream port. In suspend
mode, the LED is off.
The GoodLink feature provides a user-friendly indication on the status of the USB trafc
between the host and downstream hubs and devices. It is a useful diagnostics tool to
isolate faulty equipment and helps to reduce eld support and hotline costs.
The system designer can also program two optional port indicators, a green LED and an
amber LED, to indicate the status of the Host Controller. These port indicators are
implemented as per the USB specication.
All LED indicators are open-drain output.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISP1561BMGA | 功能描述:IC USB HOST CTRL HI-SPD 128LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A |
| ISP1561BMGE | 功能描述:IC USB PCI HOST CTRLR 128-LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A |
| ISP1561BMUM | 功能描述:IC USB HOST CTRL HI-SPD 128LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:4,900 系列:- 控制器类型:USB 2.0 控制器 接口:串行 电源电压:3 V ~ 3.6 V 电流 - 电源:135mA 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:36-VFQFN 裸露焊盘 供应商设备封装:36-QFN（6x6） 包装:* 其它名称:Q6396337A |
| ISP1562 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Hi-Speed USB PCI host controller |
| ISP1562BE | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Hi-Speed USB PCI host controller |
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