Microchip Technology MA330025-1 Data Sheet
dsPIC33EPXXX(GP/MC/MU)806/810/814 and PIC24EPXXX(GP/GU)810/814
DS70616G-page 386
2009-2012 Microchip Technology Inc.
FIGURE 22-1:
USB INTERFACE DIAGRAM
48 MHz USB Clock
V
USB3V3
D+
D-
V
BUS
V
BUSON
SRP Charge
SRP Discharge
Registers
and
Control
Interface
System
RAM
Full-Speed Pull-up
Host Pull-down
Host Pull-down
Host Pull-Down
USBID
VMIO
V
CPCON
from Auxiliary PLL
Low-Speed Pull-up
V
BUSST
VPIO
DMH
DPH
DMLN
DPLN
RCV
USBOEN
External Transceiver Interface
V
CMPST3
V
CMPST2
V
CMPST1
External
V
BUS
Comparator
Interface
SIE
USB
USB
Transceiver
Comparators
USB
Voltage
V
BUS
Boost
Controller