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參數(shù)資料
| 型號： | 83931AA |
| 廠商： | Intel Corp. |
| 英文描述： | Universal Serial Bus Peripheral Controller(通用串行總線HUB外設(shè)微控制器) |
| 中文描述： | 通用串行總線外設(shè)控制器（通用串行總線集線器外設(shè)微控制器） |
| 文件頁數(shù)： | 1/26頁 |
| 文件大小： | 195K |
| 代理商： | 83931AA |
8x931AA/8x931HA Universal Serial Bus
Peripheral Controller
Advanced Information Datasheet
Product Features
The 8
x
931AA and 8
x
931HA USB peripheral controllers are based on the MCS
51
microcontroller. They consist of standard 8XC51Fx peripherals plus a USB module. The
8
x
931HA USB module provides both USB hub and USB embedded function capabilities. The
8
x
931HA supports USB hub functionality, embedded function, suspend/resume modes,
isochronous/non-isochronous transfers, and is USB rev 1.0 specification compliant. The USB
I
8
x
931AA Hubless USB Peripheral
Controller
I
On-chip USB Transceivers
I
On-chip Phase-locked loop
I
FIFO Data Buffers
—Two Pairs of 8-byte Transmit and
Receive FIFOs
—One Pair of 16-byte Transmit and
Receive FIFOs
—Supports Isochronous and
Non-isochronous Data
I
Automatic FIFO Management
I
Three USB Interrupt Vectors
—Endpoint Transmit/Receive Done
—Start of Frame
—Global Suspend/Resume/USB Reset
I
Regulated 3V Output for Root Port Pullup
Resistor
I
On-chip ROM Options
—0 or 8 Kbytes
I
256 bytes On-chip Data RAM
I
Four Input/Output Ports
I
MCS
51 UART
I
Three 16-bit Timer/Counters
I
Keyboard Control Interface
I
Four Dedicated LED Driver Outputs
I
6- or 12-MHz Crystal Operation
—Low Clock Mode (3MHz)
I
8
x
931HA Includes all 8
x
931AA Features
I
8
x
931HA USB Hub has One Internal
Downstream Ports
—Universal Serial Bus Specification 1.0
Compliant
—Serves as both USB Hub and USB
Embedded Function (Internal Port)
I
USB Hub
—Connectivity Management
—Downstream Device Connect/
Disconnect Detection
—Power Management, Including Suspend
and Resume
—Bus Fault Detection and Recovery
—Full and Low Speed Downstream
Device Support
I
Hub Endpoint Done Interrupt
I
Output Pin for Port Power Switching
I
Input Pin for Overcurrent Detection
I
Hub FIFO Data Buffers
—One Pair of 8-byte Transmit and
Receive FIFOs
—One 1-byte Transmit Register
I
Embedded Function FIFO Data Buffers
—Same as the 8
x
931AA
I
12-MHz Crystal Operation
—Low Clock Mode (3MHz)
Order Number: 273108-003
March 1998
Notice:
This document contains information on products in the sampling and initial production
phases of development. The specifications are subject to change without notice. Verify with your
local Intel sales office that you have the latest datasheet before finalizing a design.
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