Specification
NET2272 USB Peripheral Controller
______________________________________________________________________________
NetChip Technology, Inc., 2003
Patent Pending
335 Pioneer Way, Mountain View, California 94041
TEL (650) 526-1490
FAX (650) 526-1494
http://www.netchip.com
Rev 1.2, October 15, 2003
6
8.5.19
(Address 46h; SETUP6) Setup Byte 6....................................................................................67
8.5.20
(Address 47h; SETUP7) Setup Byte 7....................................................................................67
8.6
ENDPOINT REGISTERS .................................................................................................................68
8.6.1
(Address 05h; EP_DATA) Endpoint Data .............................................................................68
8.6.2
(Address 06h; EP_STAT0) Endpoint Status Register (low byte) ...........................................68
8.6.3
(Address 07h; EP_STAT1) -- Endpoint Status Register (high byte) ......................................69
8.6.4
(Address 08h; EP_TRANSFER0) Transfer Count Register (Byte 0) .....................................69
8.6.5
(Address 09h; EP_TRANSFER1) Transfer Count Register (Byte 1) .....................................69
8.6.6
(Address 0Ah; EP_TRANSFER2) Transfer Count Register (Byte 2) .....................................69
8.6.7
(Address 0Bh; EP_IRQENB) Endpoint Interrupt Enable Register........................................70
8.6.8
(Address 0Ch: EP_AVAIL0) Endpoint Available Count (low byte).......................................70
8.6.9
(Address 0Dh: EP_AVAIL1) Endpoint Available Count (high byte) .....................................70
8.6.10
(Address 0Eh; EP_RSPCLR) Endpoint Response Register Clear .........................................71
8.6.11
(Address 0Fh; EP_RSPSET) Endpoint Response Register Set ..............................................72
8.6.12
(Address 28h; EP_MAXPKT0) Max Packet Size (low byte) ..................................................72
8.6.13
(Address 29h; EP_MAXPKT1) Max Packet Size (high byte).................................................72
8.6.14
(Address 2Ah; EP_CFG) Endpoint Configuration Register ..................................................73
8.6.15
(Address 2Bh: EP_HBW) Endpoint High Bandwidth ............................................................73
8.6.16
(Address 2Ch: EP_BUFF_STATES) Endpoint Buffer States.................................................74
8.7
REGISTER CHANGES FROM NET2270...........................................................................................74
9
USB STANDARD DEVICE REQUESTS..........................................................................................75
9.1
CONTROL ‘READ’ TRANSFERS ....................................................................................................76
9.1.1
Get Device Status...................................................................................................................76
9.1.2
Get Interface Status ...............................................................................................................76
9.1.3
Get Endpoint Status ...............................................................................................................76
9.1.4
Get Device Descriptor (18 Bytes) ..........................................................................................76
9.1.5
Get Device Qualifier (10 Bytes).............................................................................................77
9.1.6
Get Other_Speed_Configuration Descriptor .........................................................................77
9.1.7
Get Configuration Descriptor................................................................................................78
9.1.8
Get String Descriptor 0..........................................................................................................81
9.1.9
Get String Descriptor 1..........................................................................................................81
9.1.10
Get String Descriptor 2..........................................................................................................81
9.1.11
Get String Descriptor 3..........................................................................................................81
9.1.12
Get Configuration ..................................................................................................................81
9.1.13
Get Interface ..........................................................................................................................81
9.2
CONTROL ‘WRITE’ TRANSFERS...................................................................................................82
9.2.1
Set Address.............................................................................................................................82
9.2.2
Set Configuration...................................................................................................................82
9.2.3
Set Interface ...........................................................................................................................82
9.2.4
Device Clear Feature.............................................................................................................82
9.2.5
Device Set Feature.................................................................................................................82
9.2.6
Endpoint Clear Feature .........................................................................................................83
9.2.7
Endpoint Set Feature .............................................................................................................83
10
ELECTRICAL SPECIFICATIONS ..............................................................................................84
10.1
ABSOLUTE MAXIMUM RATINGS..................................................................................................84
10.2
RECOMMENDED OPERATING CONDITIONS ..................................................................................84
10.3
DC SPECIFICATIONS....................................................................................................................85
10.3.1
Core DC Specifications .........................................................................................................85
10.3.1.1
Disconnected from USB...................................................................................................................85
10.3.1.2
Connected to USB (High-Speed) .....................................................................................................85
10.3.1.3
Active (High-Speed) ........................................................................................................................85
10.3.1.4
Connected to USB (Full-Speed).......................................................................................................85
10.3.1.5
Active (Full-Speed) ..........................................................................................................................85
10.3.1.6
Suspended ........................................................................................................................................85
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