saf1760 NXP Semiconductors, saf1760 Datasheet

saf1760

Manufacturer Part Number

saf1760

Description

Saf1760 Hi-speed Universal Serial Bus Host Controller For Embedded Applications

Manufacturer

NXP Semiconductors

Datasheet

1.SAF1760.pdf (110 pages)

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1. General description

2. Features

The SAF1760 is a Hi-Speed Universal Serial Bus (USB) host controller with a generic

processor interface. It integrates one Enhanced Host Controller Interface (EHCI), one

Transaction Translator (TT) and three transceivers. The host controller portion of the

SAF1760 and the three transceivers comply to

Rev.

Controller Interface Speciﬁcation for Universal Serial Bus Rev.

The integrated high-performance Hi-Speed USB transceivers enable the SAF1760 to

handle all Hi-Speed USB transfer speed modes: high-speed (480 Mbit/s), full-speed

(12 Mbit/s) and low-speed (1.5 Mbit/s). The three downstream ports allow simultaneous

connection of three devices at different speeds (high-speed, full-speed and low-speed).

The generic processor interface allows the SAF1760 to be connected to various

processors as a memory-mapped resource. The SAF1760 is a slave host: it does not

require bus-mastering capabilities of the host system bus. The interface can be

conﬁgured, ensuring compatibility with a variety of processors. Data transfer can be

performed on 16 bits or 32 bits, using Programmed Input/Output (PIO) or Direct Memory

Access (DMA) with major control signals conﬁgurable as active LOW or active HIGH.

Integration of the TT allows connection to full-speed and low-speed devices, without the

need of integrating Open Host Controller Interface (OHCI) or Universal Host Controller

Interface (UHCI). Instead of dealing with two sets of software drivers, EHCI and OHCI or

UHCI, you need to deal with only one set, EHCI, that dramatically reduces software

complexity and IC cost.

SAF1760

Hi-Speed Universal Serial Bus host controller for embedded

applications

Rev. 01 — 9 November 2009

Automotive qualiﬁed in accordance with AEC-Q100

The host controller portion of the SAF1760 complies with

Speciﬁcation Rev. 2.0”

The EHCI portion of the SAF1760 is adapted from

Interface Speciﬁcation for Universal Serial Bus Rev. 1.0”

Contains three integrated Hi-Speed USB transceivers that support high-speed,

full-speed and low-speed modes

Integrates a TT for original USB (full-speed and low-speed) device support

Up to 64 kB internal memory (8 k

interface; operation in multitasking environments is made possible by the

implementation of virtual segmentation mechanism with bank switching on task

request

2.0”. The EHCI portion of the SAF1760 is adapted from

64 bit) accessible through a generic processor

Ref. 1 “Universal Serial Bus Speciﬁcation

Ref. 2 “Enhanced Host Controller

Ref. 2 “Enhanced Host

Ref. 1 “Universal Serial Bus

1.0”.

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