isp1161bm NXP Semiconductors, isp1161bm Datasheet

isp1161bm

Manufacturer Part Number

isp1161bm

Description

Isp1161 Full-speed Universal Serial Bus Single-chip Host And Device Controller

Manufacturer

NXP Semiconductors

Datasheet

1.ISP1161BM.pdf (137 pages)

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Bonase Electronics (HK) Co., Limited

Part Number:

ISP1161BM

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NXP

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1. General description

The ISP1161 is a single-chip Universal Serial Bus (USB) Host Controller (HC) and

Device Controller (DC). The Host Controller portion of the ISP1161 complies with

Universal Serial Bus Speciﬁcation Rev 2.0, supporting data rates at full-speed

(12 Mbit/s) and low-speed (1.5 Mbit/s). The Device Controller portion of the ISP1161

also complies with Universal Serial Bus Speciﬁcation Rev 2.0, supporting data rates

at full-speed (12 Mbit/s). These two USB controllers, the HC and the DC, share the

same microprocessor bus interface. They have the same data bus, but different I/O

locations. They also have separate interrupt request output pins, separate DMA

channels that include separate DMA request output pins and DMA acknowledge

input pins. This makes it possible for a microprocessor to control both the USB HC

and the USB DC at the same time.

The ISP1161 provides two downstream ports for the USB HC and one upstream port

for the USB DC. Each downstream port has its own overcurrent (OC) detection input

pin and power supply switching control output pin. The upstream port has its own

suspended status output pins for the USB HC and the USB DC, respectively. This

makes power management ﬂexible. The downstream ports for the HC can be

connected with any USB compliant USB devices and USB hubs that have USB

upstream ports. The upstream port for the DC can be connected to any USB

compliant USB host and USB hubs that have USB downstream ports.

The HC is adapted from Open Host Controller Interface Speciﬁcation for USB

Release 1.0a , referred to as OHCI in the rest of this document.

The DC is compliant with most device class speciﬁcations such as Imaging Class,

Mass Storage Devices, Communication Devices, Printing Devices and Human

Interface Devices.

The ISP1161 is well suited for embedded systems and portable devices that require a

USB host only, a USB device only, or a combined and conﬁgurable USB host and

USB device capabilities. ISP1161 brings high ﬂexibility to the systems that have it

built-in. For example, a system that has ISP1161 built-in allows it not only to be

connected to a PC or USB hub that has a USB downstream port, but also to be

connected to a device that has a USB upstream port such as a USB printer, USB

camera, USB keyboard, USB mouse, among others. ISP1161 enables point-to-point

connectivity between embedded systems. An interesting application example is to

connect an ISP1161 HC with an ISP1161 DC.

Consider the examples of an ISP1161 being used in a Digital Still Camera (DSC)

design.

ISP1161 being used as a USB HC.

USB HC and a USB DC at the same time.

BUS

ISP1161

Full-speed Universal Serial Bus single-chip host and device

controller

Rev. 02 — 13 December 2002

detection input pin. ISP1161 also provides separate wake-up input pins and

Figure 1

shows the ISP1161 being used as a USB DC.

Figure 3

shows the ISP1161 being used as a

Figure 2

Product data

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