Section number Title Page
43.4.15
Address register (USBx_ADDR).................................................................................................................1097
43.4.16
BDT Page register 1 (USBx_BDTPAGE1)................................................................................................. 1098
43.4.17
Frame Number register Low (USBx_FRMNUML).....................................................................................1098
43.4.18
Frame Number register High (USBx_FRMNUMH)................................................................................... 1099
43.4.19
Token register (USBx_TOKEN)..................................................................................................................1099
43.4.20
SOF Threshold register (USBx_SOFTHLD)...............................................................................................1100
43.4.21
BDT Page Register 2 (USBx_BDTPAGE2)................................................................................................1101
43.4.22
BDT Page Register 3 (USBx_BDTPAGE3)................................................................................................1101
43.4.23
Endpoint Control register (USBx_ENDPTn)...............................................................................................1102
43.4.24
USB Control register (USBx_USBCTRL).................................................................................................. 1103
43.4.25
USB OTG Observe register (USBx_OBSERVE)........................................................................................1104
43.4.26
USB OTG Control register (USBx_CONTROL)........................................................................................ 1104
43.4.27
USB Transceiver Control register 0 (USBx_USBTRC0)............................................................................1105
43.4.28
Frame Adjust Register (USBx_USBFRMADJUST)................................................................................... 1106
43.4.29
USB Clock recovery control (USBx_CLK_RECOVER_CTRL)................................................................1107
43.4.30
IRC48M oscillator enable register (USBx_CLK_RECOVER_IRC_EN)................................................... 1108
43.4.31
Clock recovery combined interrupt enable (USBx_CLK_RECOVER_INT_EN)...................................... 1109
43.4.32
Clock recovery separated interrupt status (USBx_CLK_RECOVER_INT_STATUS).............................. 1109
43.5 OTG and Host mode operation.....................................................................................................................................1110
43.6 Host Mode Operation Examples...................................................................................................................................1110
43.7 On-The-Go operation....................................................................................................................................................1113
43.7.1 OTG dual role A device operation...............................................................................................................1114
43.7.2 OTG dual role B device operation............................................................................................................... 1115
43.8 Device mode IRC48 operation......................................................................................................................................1117
Chapter 44
USB Voltage Regulator (VREG)
44.1 Introduction...................................................................................................................................................................1119
44.1.1 Overview......................................................................................................................................................1119
44.1.2 Features........................................................................................................................................................ 1120
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 37
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