Public Version
High-Speed USB Host Subsystem
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Bits
Field Name
Description
Type
Reset
Write 0x0: No effect.
Write 0x1: Disable interrupt generation due to ownership
change.
29:7
RESERVED
Reserved
R
0x000000
6
RHSC
Root hub status change.
RW
0
Always reads 0x0.
Write 0x0: No effect.
Write 0x1: Clears the
RHSC bit.
5
FNO
Frame number overflow.
RW
0
Always reads 0x0.
Write 0x0: No effect.
Write 0x1: Clears the
FNO bit.
4
UE
Unrecoverable error.
RW
0
Always reads 0x0.
Write 0x0: No effect.
Write 0x1: Clears the
UE bit.
3
RD
Resume detected.
RW
0
Always reads 0x0.
Write 0x0: No effect.
Write 0x1: Clears the
RD bit.
2
SF
Start of frame.
RW
0
Always reads 0x0.
Write 0x0: No effect.
Write 0x1: Clears the
SF bit.
1
WDH
Write done head.
RW
0
Always reads 0x0.
Write 0x0: No effect.
Write 0x1: Clears the
WDH bit.
0
SO
Scheduling overrun.
RW
0
Always reads 0x0.
Write 0x0: No effect.
Write 0x1: Clears the
SO bit.
Table 22-175. Register Call Summary for Register HCINTERRUPTDISABLE
High-Speed USB Host Subsystem
•
High-Speed USB Host Subsystem Register Summary
Table 22-176. HCHCCA
Address Offset
0x0000 0018
Physical Address
0x4806 4418
Instance
OHCI
Description
HC HCCA Address Register
Type
RW
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
HCCA
RESERVED
Bits
Field Name
Description
Type
Reset
31:8
HCCA
Physical address of the beginning of the HCCA.
RW
0x000000
7:0
RESERVED
Reserved
R
0x00
Table 22-177. Register Call Summary for Register HCHCCA
High-Speed USB Host Subsystem
•
High-Speed USB Host Subsystem Register Summary
3332High-Speed USB Host Subsystem and High-Speed USB OTG Controller
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated