SDA> USB SHO UHCI HCDTD 89732100
 Host Controler Transfer Descriptor
 ----------------------------------  ----------------
 Forward Link pointer                        89758598
 Backward link pointer                       89758598
 Structure size                                   040
 Strucutre type                                    8b
 Structure sub type                                fe
 Used TD FLINK                               8973214c
 Used TD BLINK                               896e8928
 USDB Request associated to this TD          897585a0
 VA of HCDQH for this TD 0 for ISOCH         89fde4b0
 HCDTD flags
    HCDTD Active
 Next HCDTD if multiple queued requests      00000000
 Adderess Next byte in buffer if segments    00000000
 Number of bytes left to transfer                0000
 If segmented bytes transfered so far            0000
 Physical TD FLINK                           89fe02c0
             BLINK                           89fe02c0
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