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Details, datasheet, quote on part number:NET2270
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| Part: | NET2270 |
| Category: | Interface and Interconnect => USB => USB 2.0 |
| Description: | 16-bit Programmable Usb 2.0 Peripheral Controller |
| Company: | NetChip Technology |
| Datasheet: | Download NET2270 datasheet File size : 433 kB |
| Request For quote: | Find where to buy NET2270
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Datasheet text preview:
NetChip
Technology, Inc.
335 Pioneer Way Mt View, California 94041 (650) 526-1490 Fax (650) 526-1494 e-mail: sales@netchip.com Internet: www.netchip.com
NET2270 USB 2.0 Interface Controller
Doc #: 605-0139-0350 Revision: 3.6 Date: April 17, 2003
Specification
NET2270 USB Interface Controller
This document contains material that is confidential to NetChip. Reproduction without the express written consent of NetChip is prohibited. All reasonable attempts were made to ensure the contents of this document are accurate, however no liability, expressed or implied is guaranteed. NetChip reserves the right to modify this document, without notification, at any time.
Revision History
Revision 1.0 1.1 2.0 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Issue Date February 6, 2001 March 21, 2001 April 30, 2001 June 12, 2001 September 7, 2001 December 17, 2001 March 27, 2002 April 5, 2002 January 31, 2003 April 17, 2003 Comments Revision 1 silicon initial release Update sample schematic, register, and functional descriptions Revision 2 silicon initial release Revision 3 silicon initial release Update some descriptions and bus timing Minor changes Modifications to sample schematic Modifications to Ambient Operating Temperature Re-arrange chapters, update electrical specifications Update physical pin assignment diagram
______________________________________________________________________________ NetChip Technology, Inc., 2003 335 Pioneer Way, Mountain View, California 94041 TEL (650) 526-1490 FAX (650) 526-1494 http://www.netchip.com Rev 3.6, April 17, 2003
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Specification
NET2270 USB Interface Controller
NET2270 USB Interface Controller
1 INTRODUCTION ......7 1.1 FEATURES........7 1.2 OVERVIEW.......7 1.3 NET2270 BLOCK DIAGRAM....9 1.4 NET2270 TYPICAL SYSTEM BLOCK DIAGRAMS ......9 1.4.1 Example connections to NET2270........11 1.4.2 Example Part Numbers..........12 1.4.3 General PCB Layout Guidelines ..........12
1.4.3.1 1.4.3.2 1.4.3.3 1.4.3.4 1.4.3.5 USB Differential Signals .........12 Analog VDD (power)......12 Analog VSS (ground)......13 Decoupling Capacitors....13 EMI Noise Suppression ...........13
1.5 2 2.1 2.2 2.3 2.4 2.5 3 3.1 3.2 3.3 3.4 4
TERMINOLOGY .............14 DIGITAL POWER & GROUND (9 PINS) ............15 USB TRANSCEIVER (15 PINS).........16 CLOCKS, RESET, MISC. (9 PINS) ...........17 LOCAL BUS PIN DESCRIPTIONS (31 PINS) ......18 PHYSICAL PIN ASSIGNMENT ..19 OVERVIEW.....20 RESET# PIN ..........20 ROOT PORT RESET........20 RESET SUMMARY .........20
PIN DESCRIPTION..........15
RESET AND INITIALIZATION ............20
LOCAL BUS INTERFACE.......21 4.1 INTRODUCTION.............21 4.2 REGISTER ADDRESSING MODES ...........21 4.2.1 Direct Address Mode ....21 4.2.2 Indirect Address Mode..21 4.2.3 Multiplexed Address Mode ..........21 4.3 CONTROL SIGNAL DEFINITIONS............21 4.4 BUS WIDTH / BYTE ALIGNMENT ..........21 4.5 I/O TRANSACTIONS ......22 4.5.1 Non-Multiplexed I/O Read...........22 4.5.2 Multiplexed I/O Read....22 4.5.3 Non-Multiplexed I/O Write ..........23 4.5.4 Multiplexed I/O Write ...23 4.5.5 I/O Performance ...........24
4.5.5.1 4.5.5.2 4.5.5.3 4.5.5.4 Non-Multiplexed Read Transaction ........24 Multiplexed Read Transaction ..........24 Non-Multiplexed Write Transaction .......24 Multiplexed Write Transaction .........24
4.6 DMA TRANSACTIONS ...........25 4.6.1 DMA Read ...........25 4.6.2 DMA Write...........26 4.6.3 DMA Split Bus Mode ....28 4.6.4 Terminating DMA Transfers........28 ______________________________________________________________________________ NetChip Technology, Inc., 2003 335 Pioneer Way, Mountain View, California 94041 TEL (650) 526-1490 FAX (650) 526-1494 http://www.netchip.com Rev 3.6, April 17, 2003 3
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