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PRCM Register Manual
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
ST_USBHOST_IDLE
ST_USBHOST_STDBY
Bits
Field Name
Description
Type
Reset
31:2
RESERVED
Read returns 0.
R
0x00000000
1
ST_USBHOST_IDLE
USB HOST idle status.
R
0x1
0x0: USB HOST is active.
0x1: USB HOST is in idle mode and cannot be accessed.
0
ST_USBHOST_STDBY
USB HOST standby status.
R
0x1
0x0: USB HOST is active.
0x1: USB HOST is in standby mode.
Table 3-287. Register Call Summary for Register CM_IDLEST_USBHOST
PRCM Basic Programming Model
•
CM_IDLEST_ <domain_name> (Idle-Status Register)
:
PRCM Register Manual
•
Table 3-288. CM_AUTOIDLE_USBHOST
Address Offset
0x0000 0030
Physical Address
0x4800 5430
Instance
USBHOST_CM
Description
This register controls the automatic control of the modules interface clock activity.
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
RESERVED
AUTO_USBHOST
Bits
Field Name
Description
Type
Reset
31:1
RESERVED
Write 0s for future compatibility. Read returns 0.
R
0x00000000
0
AUTO_USBHOST
USB HOST auto clock control.
RW
0x0
0x0: USB HOST interface clock is unrelated to the
domain state transition.
0x1: USB HOST interface clock is automatically enabled
or disabled along with the domain state transition.
Table 3-289. Register Call Summary for Register CM_AUTOIDLE_USBHOST
PRCM Functional Description
•
USBHOST Power Domain Clock Controls
PRCM Basic Programming Model
•
CM_AUTOIDLE_ <domain_name> (Autoidle Register)
:
545
SWPU177N – December 2009 – Revised November 2010
Power, Reset, and Clock Management
Copyright © 2009–2010, Texas Instruments Incorporated