ISP1161A1BD,118 STEricsson, ISP1161A1BD,118 Datasheet - Page 2

• Manufacturer Part Number: ISP1161A1BD,118
• Manufacturer: STEricsson

Specifications of ISP1161A1BD,118

• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Supplier Unconfirmed

1. General description
The ISP1161A1 is a single-chip Universal Serial Bus (USB) Host Controller (HC) and
Device Controller (DC). The Host Controller portion of the ISP1161A1 complies with
Universal Serial Bus Specification Rev. 2.0, supporting data transfer at full-speed
(12 Mbit/s) and low-speed (1.5 Mbit/s). The Device Controller portion of the ISP1161A1
also complies with Universal Serial Bus Specification Rev. 2.0, supporting data transfer 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 ISP1161A1 provides two downstream ports for the USB HC and one upstream port
for the USB DC. Each downstream port has an overcurrent (OC) detection input pin and
power supply switching control output pin. The upstream port has a V
pin.The ISP1161A1 also provides separate wake-up input pins and 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 devices and 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 the 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 USB device class specifications such as Imaging Class,
Mass Storage Devices, Communication Devices, Printing Devices and Human Interface
Devices.
The ISP1161A1 is well suited for embedded systems and portable devices that require a
USB host only, a USB device only, or a combination of a configurable USB host and USB
device. The ISP1161A1 brings high flexibility to the systems that have it built-in. For
example, a system that uses an ISP1161A1 allows it not only to be connected to a PC
or USB hub with 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 or a USB mouse.
Therefore, the ISP1161A1 enables point-to-point connectivity between embedded
systems. An interesting application example is to connect an ISP1161A1 HC with an
ISP1161A1 DC.
Consider an example of an ISP1161A1 being used in a Digital Still Camera (DSC) design.
Figure 1
being used as a USB HC.
USB DC at the same time.
ISP1161A1
USB single-chip host and device controller
Rev. 04 — 29 January 2009
shows an ISP1161A1 being used as a USB DC.
Figure 3
shows an ISP1161A1 being used as a USB HC and a
Figure 2
shows an ISP1161A1
Product data sheet
BUS
detection input