+------------------------+
			| TI89 Titanium USB port |
			|		Informations	 			 |
			+------------------------+



USB port characteristics:
-------------------------

- Name: 'TI-89 Titanium'
- Manufacturer: 'Texas Instruments Corporated'
- VID/PID: 0x0451/0xe004
- Firmware revision: 3.00 (AMS or HW version ??)
- bus or self powered (unused) with remote wake-up


USB related things:
-------------------

The cable is a full-speed (FS, 12Mbit/s) device, USB2.0 compliant, under a 
proprietary class. It does not fit into any existing class (HID, printer, ...)
then it requires a specific device driver.

The device uses 'Bulk' mode for data transfers. There are two bulk endpoints 
(IN & OUT) and one control endpoint (mandatory). Transfers are achieved by 
packets. The endpoints advertise a maximum packet size of 64 bytes.

Unlike SilverLink, it seems to have a sub-class.


Identity card (Linux log):
--------------------------

T:  Bus=02 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 12 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=0451 ProdID=e004 Rev= 3.00
S:  Manufacturer=Texas Instruments Incorporated
S:  Product=TI-89 Titanium
C:* #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=01 Prot=00 Driver=(none)
E:  Ad=81(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms

Bus 001 Device 003: ID 0451:e004 Texas Instruments, Inc. TI-89 Titanium Calculator
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0451 Texas Instruments, Inc.
  idProduct          0xe004 TI-89 Titanium Calculator
  bcdDevice            3.00
  iManufacturer           1 Texas Instruments Incorporated
  iProduct                2 TI-89 Titanium
  iSerial                 0 
  bNumConfigurations      1
OTG Descriptor:
  bLength                 3
  bDescriptorType         9
  bmAttributes         0x03
    SRP (Session Request Protocol)
    HNP (Host Negotiation Protocol)
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           35
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      1 
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               0
Device Status:     0x0001
  Self Powered
  
      
Author:
-------

(c) 2004, Romain Liévin
Developer of TiLP & TiEmu.