Philips Semiconductors

ISP1362 Linux Stack User’s Guide

2.3.Core Modules

2.3.1.Host Stack

The host stack consists of the Host Controller Driver (HCD) module. The driver is used for data transfer on the USB bus for the connected devices. This driver can work in parallel with other HCDs (OHCI HCD, UHCI HCD, EHCI HCD) present in the kernel. This is a kernel module and the Linux OS has support for USB, connected USB device class drivers and suitable applications.

Mass Storage disk

OTG Mass storage demo/

Linux operating system

OTG tools

emulation

 

 

 

 

Linux File System

 

 

 

Linux kernel

Mass Storage bridge

 

basic device drivers

Mass Storage class driver

 

USB class drivers

 

OTG driver

 

USB protocol driver

 

USB core

Device Controller Driver

 

Host Controller Driver

 

ISP1362 Hardware Access Layer Driver

 

ISP1362 stack core modules

ISP1362 application modules

Linux kernel drivers ISP1362 porting modules

ISP1362 Hardware

Figure 2-1: ISP1362 Linux Stack Architecture

2.3.2.Device Stack

The device stack consists of the Device Controller Driver (DCD), the USB protocol driver, and the mass storage class driver. The DCD is responsible for data transfer over the USB bus. The USB protocol driver responds to the standard USB protocol requests. The mass storage class driver adds the mass storage functionality to the USB device, and responds to the mass storage class commands and protocol. The mass storage needs to interface with the physical mass storage device to perform its operations, and the physical disk is customer platform-specific and

UM10012-_2

 

© Koninklijke Philips Electronics N.V. 2003. All rights reserved.

User’s Guide

Rev. 1.2—July 2003

7 of 34

Page 7
Image 7
Philips ISP1362 manual Core Modules, Host Stack, Device Stack

ISP1362 specifications

The Philips ISP1362 is a highly versatile USB controller that serves as a key component in various electronics and computing devices. Known for its robust features and efficient design, the ISP1362 has gained popularity in applications ranging from consumer electronics to embedded systems.

One of the standout features of the ISP1362 is its support for both USB 1.1 and USB 2.0 standards. This dual compatibility allows devices utilizing the ISP1362 to connect seamlessly with a wide range of peripherals, ensuring flexibility for developers and users alike. The chip can efficiently handle data transfer rates of up to 12 Mbps in USB 1.1 mode and 480 Mbps in USB 2.0 mode, catering to fast data exchange demands in modern applications.

The ISP1362 integrates an advanced architecture with a built-in microcontroller unit, reducing the need for additional external components. This facilitates easier design and integration into various embedded systems, simplifying the development process for engineers. Its compact design is optimized for low power consumption, making it an ideal choice for battery-operated devices.

In terms of technological features, the ISP1362 is equipped with enhanced error detection capabilities. This ensures accuracy and reliability during data transmission, which is crucial for maintaining data integrity, especially in applications demanding high availability and performance.

The chip also incorporates a flexible pipeline for USB protocol handling, which enables it to manage multiple data streams efficiently. This feature is particularly beneficial in complex systems where various peripherals may be communicating simultaneously, allowing for improved system responsiveness and overall performance.

Moreover, the ISP1362 supports the use of different USB classes, including Mass Storage and Human Interface Devices (HID), providing developers with the versatility needed for a broad spectrum of applications. Its compliance with industry standards ensures compatibility and reduces integration times, making it a preferred choice for many manufacturers.

Overall, the Philips ISP1362 stands out with its combination of high-speed connectivity, power efficiency, and robust functionality, making it an excellent option for engineers and developers looking to implement USB connectivity in their designs. Whether in consumer electronics, automotive applications, or industrial devices, the ISP1362 continues to be a reliable USB interface solution that meets modern performance demands.