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8X930HX Scheda tecnica(PDF) 1 Page - Intel Corporation

Il numero della parte 8X930HX
Spiegazioni elettronici  UNIVERSAL SERIAL BUS HUB PERIPHERAL CONTROLLER
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Produttore elettronici  INTEL [Intel Corporation]
Homepage  http://www.intel.com
Logo INTEL - Intel Corporation

8X930HX Scheda tecnica(HTML) 1 Page - Intel Corporation

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ADVANCE INFORMATION
COPYRIGHT © INTEL CORPORATION, 1997
May 1997
Order Number: 272928-003
8
x930Hx
UNIVERSAL SERIAL BUS HUB
PERIPHERAL CONTROLLER
s USB Hub with One Upstream, One
Internal Downstream, and Three
External Downstream Ports on HD/HE
Parts or Four on HF/HG Parts
— Complete Universal Serial Bus Speci-
fication 1.0 Compatibility
— Serves as both USB Hub and USB
Embedded Function (Internal Port)
s 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
s Output Pin for Port Power Switching
s Input Pin for Overcurrent Detection
s USB Embedded Function
— Supports Isochronous and
Non-isochronous Data
s On-chip USB Transceivers
s Serial Bus Interface Engine (SIE)
— Packet Decoding/Generation
— CRC Generation and Checking
— NRZI Encoding/Decoding and
Bit-stuffing
s Hub FIFO Data Buffers
— One Pair of 16-byte Transmit and
Receive FIFOs
— One 1-byte Transmit Register
s Embedded Function FIFO Data Buffers
— Three Pairs of 16-byte Transmit and
Receive FIFOs
— One Pair of Configurable Transmit
and Receive FIFOs (1 Kbyte total)
s Automatic Transmit/Receive FIFO
Management
s Three USB Interrupt Vectors
— Endpoint Transmit/Receive Done
— Start of Frame/Hub Endpoint Done
— Global Suspend/Resume
s Low Clock Mode
s User-selectable Configurations
— External Wait State
— External Address Range
—Page Mode
s Real-time Wait Function
s 256-Kbyte External Code/Data Memory
Space
s On-chip ROM Options
— 0, 8, or 16 Kbytes
s 1024 bytes On-chip Data RAM
s Four Input/Output Ports
s Standard MCS® 51 UART
s Power-saving Idle and Powerdown
Modes
s Register-based MCS® 251 Architecture
s Code-compatible with MCS 51 and
MCS 251 Microcontrollers
s 12-MHz Crystal Operation
The 8
x930Hx USB hub peripheral controller is based on the MCS 251 microcontroller. It consists of standard
8XC251Sx peripherals plus a USB module. The USB module provides both USB hub and USB embedded
function capabilities. The 8
x930Hx supports USB hub functionality, embedded function, suspend/resume
modes, isochronous/non-isochronous transfers, and it is fully USB rev 1.0 specification compliant. The USB
module contains one internal and three (or four) external downstream ports and integrates the USB trans-
ceivers, serial bus interface engine (SIE), hub interface unit (HIU), function interface unit (FIU), and
transmit/receive FIFOs. The 8
x930Hx uses the standard instruction set of the MCS 251 architecture, which is
binary code compatible with the MCS 51 architecture.


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