Datasheet

dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
DS70616G-page 396  2009-2012 Microchip Technology Inc.
REGISTER 22-11: UxCNFG2: USB CONFIGURATION REGISTER 2
U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0
— — — — — — — —
bit 15 bit 8
U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
— —
UVCMPSEL PUVBUS EXTI2CEN
UVBUSDIS
(1)
UVCMPDIS
(1)
UTRDIS
( 1 )
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-6 Unimplemented: Read as ‘0’
bit 5 UVCMPSEL: USB External Comparator Input Mode Select bit
When UVCMPDIS is Set:
1 = Use 3-pin input for external comparators
0 = Use 2-pin input for external comparators
bit 4 PUVBUS: V
BUS Pull-up Enable bit
1 = Pull-up on VBUS pin is enabled
0 = Pull-up on V
BUS pin is disabled
bit 3 EXTI2CEN: I
2
C™ Interface for External Module Control Enable bit
1 = External module(s) controlled via I
2
C interface
0 = External module(s) controlled via dedicated pins
bit 2 UVBUSDIS: USB On-Chip 5V Boost Regulator Builder Disable bit
( 1 )
1 = On-chip boost regulator builder is disabled; digital output control interface is enabled
0 = On-chip boost regulator builder is active
bit 1 UVCMPDIS: USB On-Chip VBUS Comparator Disable bit
( 1 )
1 = On-chip charge VBUS comparator is disabled; digital input status interface is enabled
0 = On-chip charge VBUS comparator is active
bit 0 UTRDIS: USB On-Chip Transceiver Disable bit
( 1 )
1 = On-chip transceiver is disabled; digital transceiver interface is enabled
0 = On-chip transceiver is active
Note 1: Do not change this bit while the USBPWR bit is set (UxPWRC<0> = 1).