Public Version
High-Speed USB Host Subsystem
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Bits
Field Name
Description
Type
Reset
31:9
RESERVED
Reserved
R
0x000000
8
CLOCKACTIVITY
Enable autogating of L3 interconnect-derived internal
RW
0x0
clocks while module is idle.
0x0: L3 interconnect-derived internal clocks OFF during
idle
0x1: L3 interconnect-derived internal clocks ON during
idle
7:5
RESERVED
Reserved
R
0x0
4:3
SIDLEMODE
Slave interface power management control. Idle Req/ack
RW
0x0
control
0x0: Force-Idle mode. Sidleack asserted after Idlereq
assertion
0x1: No-idle mode. Sidleack never asserted.
0x2: Smart-idle mode. Sidleack asserted after Idlereq
assertion when no more activity on the USB.
2
ENAWAKEUP
Asynchronous wakeup generation control (Swakeup)
RW
0x0
0x0: Wakeup generation disabled
0x1: Wakeup generation enabled
1
SOFTRESET
Module software reset
W
0x0
0x0: No effect
0x1: Starts softreset sequence.
0
AUTOIDLE
Internal autogating control
RW
0x1
0x0: Clock always running
0x1: When no activity on L3 interconnect, clock is cut off.
Table 22-63. Register Call Summary for Register USBTLL_SYSCONFIG
High-Speed USB Host Subsystem
•
Reset, Clocking, and Power-Management Scheme
•
•
High-Speed USB Host Subsystem Register Summary
Table 22-64. USBTLL_SYSSTATUS
Address Offset
0x0000 0014
Physical Address
0x4806 2014
Instance
USBTLL
Description
Standard system status register
Type
R
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
RESERVED
RESETDONE
Bits
Field Name
Description
Type
Reset
31:1
RESERVED
Reserved
R
0x00000000
0
RESETDONE
Indicates when the module has entirely come out of reset
R
0x0
0x0: Reset is ongoing
0x1: Reset is done
3290
High-Speed USB Host Subsystem and High-Speed USB OTG Controller
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated