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USB Global registers
718
NS9750 Hardware Reference
Device Control and Status register
Address: 9010 0004
The Device Control and Status register contains the USB device-block-specific control
and status information.
D05 R SUSP 0 Suspend
0 The USB device is not in a suspended state
1 The USB device is in a suspended state
Indicates whether the USB device is in a suspended state.
D04:03 N/A Not used 0 Always write a 0.
D02 R/W WKUP 0 Wakeup
Value depends on the value written to the HST_DEV field
(bit 0 in this register).
When the NS9750 is in device mode, the device
driver can write a 1 to this field to enable remote
wakeup.
When the NS9750 is in host mode, this field is
ignored.
D01 R Not used 1 Always read as 1.
D00 R/W HSTDV 1 Host/device (HST_DEV)
0 USB host mode
1 USB device mode
Indicates the mode of the USB controller.
Bits Access Mnemonic Reset Description
Table 417: Global Control and Status register
FRAME INTF CFG
13 12 11 10 9 8 7 6 5 4 3 2 1 015 14
31 29 28 27 26 25 24 23 22 21 20 19 18 17 1630
SPWR Not usedSYNC FRAMERSUM
Not
used
ALT
Not
used