參數(shù)資料
型號(hào)： 8X931HA
廠商： Intel Corp.
英文描述： UNIVERSAL SERIAL BUS PERIPHERAL CONTROLLERS
中文描述： 通用串行總線外設(shè)控制器
文件頁(yè)數(shù)： 1/30頁(yè)
文件大?。?/td> 203K
代理商： 8X931HA
ADVANCE INFORMATION
COPYRIGHT INTEL CORPORATION, 1997
November 1997
Order Number: 273108-002
8x931AA/8x931HA
UNIVERSAL SERIAL BUS
PERIPHERAL CONTROLLERS
I
8x931AA 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, and Four External
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)
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.
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