Datasheet > 8X931AA/8

8X931AA/8

更新时间： 2022-01-18 18:42:00

品牌	Logo	应用领域
英特尔 - INTEL		控制器
页数	文件大小	规格书
30页	223K
描述
UNIVERSAL SERIAL BUS PERIPHERAL CONTROLLERS

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8X931AA/8 数据手册

ADVANCE INFORMATION

8x931AA/8x931HA

UNIVERSAL SERIAL BUS

PERIPHERAL CONTROLLERS

■ 8x931AA Hubless USB Peripheral

■ 8x931HA Includes all 8x931AA

Controller

Features

■ On-chip USB Transceivers

■ On-chip Phase-locked loop

■ FIFO Data Buffers

■ 8x931HA USB Hub has One Internal

Downstream, and Four External

Downstream Ports

— Universal Serial Bus Specification

1.0 Compliant

— Two Pairs of 8-byte Transmit and

Receive FIFOs

— Serves as both USB Hub and USB

Embedded Function (Internal Port)

— One Pair of 16-byte Transmit and

Receive FIFOs

■ USB Hub

— Supports Isochronous and

Non-isochronous Data

— Connectivity Management

— Downstream Device

■ Automatic FIFO Management

■ Three USB Interrupt Vectors

— Endpoint Transmit/Receive Done

— Start of Frame

Connect/Disconnect Detection

— Power Management, Including

Suspend and Resume

— Bus Fault Detection and Recovery

— Global Suspend/Resume/USB Reset

— Full and Low Speed Downstream

Device Support

■ Regulated 3V Output for Root Port

Pullup Resistor

■ Hub Endpoint Done Interrupt

■ Output Pin for Port Power Switching

■ Input Pin for Overcurrent Detection

■ Hub FIFO Data Buffers

■ On-chip ROM Options

— 0 or 8 Kbytes

■ 256 bytes On-chip Data RAM

■ Four Input/Output Ports

■ MCS^®51 UART

— One Pair of 8-byte Transmit and

Receive FIFOs

— One 1-byte Transmit Register

■ Three 16-bit Timer/Counters

■ Keyboard Control Interface

■ Four Dedicated LED Driver Outputs

■ 6- or 12-MHz Crystal Operation

— Low Clock Mode (3MHz)

■ Embedded Function FIFO Data Buffers

— Same as the 8x931AA

■ 12-MHz Crystal Operation

— Low Clock Mode (3MHz)

The 8x931AA and 8x931HA USB peripheral controllers are based on the MCS^®51 microcontroller. They

consist of standard 8XC51Fx peripherals plus a USB module. The 8x931HA USB module provides both USB

hub and USB embedded function capabilities. The 8x931HA supports USB hub functionality, embedded

function, suspend/resume modes, isochronous/non-isochronous transfers, and is USB rev 1.0 specification

compliant. The USB module contains one internal and 4 external downstream ports and integrates the USB

transceivers, serial bus interface engine (SIE), hub interface unit (HIU), function interface unit (FIU), and

transmit/receive FIFOs. The 8x931AA is a hubless USB peripheral controller which contains the same

feature set as the 8x931HA hub controller except for the hub module. The 8x931AA/HA uses the standard

instruction set of the MCS 51 architecture.

November 1997

Order Number: 273108-002

12 3 4 5 6 7...30

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