PIC32MX440F256H-80I Datasheet, PDF (268/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
REGISTER 11-11: U1CON: USB MODULE CONTROL REGISTER (CONTINUED)
bit 0
USBEN: USB Module Enable bit (Device mode)
1 = USB module and supporting circuitry enabled
0 = USB module and supporting circuitry disabled
SOFEN: SOF Enable bit (Host mode)
1 = SOF token sent every 1 ms
0 = SOF token disabled
Note 1: Software is required to check this bit before issuing another token command to the U1TOK register, see
Register 11-15.
2: All host control logic is reset any time that the value of this bit is toggled.
3: Software must set RESUME for 10 ms if the part is a function, or for 25 ms if the part is a host, and then
clear it to enable remote wake-up. In Host mode, the USB module will append a low-speed EOP to the
RESUME signaling when this bit is cleared.
4: Device mode.
5: Host mode.
DS61143E-page 266
Preliminary
© 2008 Microchip Technology Inc.