Cirrus Logic EP93 Series User Manual page 464

Universal Serial Bus Host Controller
EP93xx User's Guide
HcDoneHead
31 30
15 14
11
Address:
Default:
Definition:
Bit Description:
HcFmInterval
31 30
FIT
15 14
RSVD
Address:
Default:
Definition:
Bit Descriptions:
11-24
29 28 27 26
13 12 11 10
AD
0x8002_0030
0x0000_0000
Physical address of the last completed transfer descriptor that was added to
the done list.
RSVD:
AD:
29 28 27 26
13 12 11 10
0x8002_0034
0x0000_2EDF
Describes the bit time interval in a frame and the full speed maximum packet
size.
Copyright 2007 Cirrus Logic
25 24 23 22
AD
9 8 7 6
Reserved. Unknown During Read.
DoneHead. When a TD is completed, HC writes the
content of HcDoneHead to the NextTD field of the TD. HC
then overwrites the content of HcDoneHead with the
address of this TD. This is set to zero whenever HC writes
the content of this register to HCCA. It also sets the
WritebackDoneHead of HcInterruptStatus.
25 24 23 22
FSMPS
9 8 7 6
FI
21 20 19 18
5 4 3 2
RSVD
21 20 19 18
5 4 3 2
17 16
1 0
17 16
1 0
DS785UM1