USBx_OTGSTAT field descriptions (continued)
Field Description
6
ONEMSECEN
This bit is reserved for the 1ms count, but it is not useful to software.
5
LINESTATESTABLE
Indicates that the internal signals that control the LINE_STATE_CHG field of OTGISTAT are stable for
at least 1 ms. This bit is used to provide a hardware debounce of the linestate in detection of Connect,
Disconnect and Resume signaling. First read LINE_STATE_CHG field and then read this field. If this
field reads as 1, then the value of LINE_STATE_CHG can be considered stable.
0 The LINE_STAT_CHG bit is not yet stable.
1 The LINE_STAT_CHG bit has been debounced and is stable.
4
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
3
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
0 The VBUS voltage is below the B session valid threshold
1 The VBUS voltage is above the B session valid threshold.
2
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
0 The VBUS voltage is above the B session end threshold.
1 The VBUS voltage is below the B session end threshold.
1
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
0
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
0 The VBUS voltage is below the A VBUS Valid threshold.
1 The VBUS voltage is above the A VBUS Valid threshold.
43.4.8 OTG Control register (USBx_OTGCTL)
Controls the operation of VBUS and Data Line termination resistors.
Address:
4007_2000h base + 1Ch offset = 4007_201Ch
Bit 7 6 5 4 3 2 1 0
Read
DPHIGH
0
DPLOW DMLOW
0
OTGEN
0
Write
Reset
0 0 0 0 0 0 0 0
USBx_OTGCTL field descriptions
Field Description
7
DPHIGH
D+ Data Line pullup resistor enable
0 D+ pullup resistor is not enabled
1 D+ pullup resistor is enabled
Table continues on the next page...
Chapter 43 Universal Serial Bus Full Speed OTG Controller (USBFSOTG)
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 1089
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