PIC18F2450/4450
U
W
Universal Serial Bus ...........................................................59
Address Register (UADDR) .....................................136
Associated Registers ...............................................149
Buffer Descriptor Table ............................................137
Buffer Descriptors ....................................................137
Address Validation ...........................................140
Assignment in Different
Watchdog Timer (WDT) ........................................... 189, 201
Associated Registers ............................................... 202
Control Register ....................................................... 201
During Oscillator Failure .......................................... 204
Programming Considerations .................................. 201
WWW Address ................................................................ 315
WWW, On-Line Support ...................................................... 6
Buffering Modes .......................................142
X
BDnSTAT Register (CPU Mode) .....................138
BDnSTAT Register (SIE Mode) .......................140
Byte Count .......................................................140
Example ...........................................................137
Memory Map ....................................................141
Ownership ........................................................137
Ping-Pong Buffering .........................................141
Register Summary ...........................................142
Status and Configuration .................................137
Class Specifications and Drivers .............................151
Descriptors ...............................................................151
Endpoint Control ......................................................135
Enumeration .............................................................151
External Transceiver ................................................131
Eye Pattern Test Enable ..........................................133
Firmware and Drivers ...............................................148
Frame Number Registers .........................................136
Frames .....................................................................150
Internal Transceiver .................................................131
Internal Voltage Regulator .......................................133
Interrupts ..................................................................143
and USB Transactions .....................................143
Layered Framework .................................................150
Oscillator Requirements ...........................................148
Output Enable Monitor .............................................133
Overview .......................................................... 129, 150
Ping-Pong Buffer Configuration ...............................133
Power .......................................................................150
Power Modes ...........................................................148
Bus Power Only ...............................................148
Dual Power with Self-Power
XORLW ............................................................................ 251
XORWF ........................................................................... 252
Dominance ...............................................148
Self-Power Only ...............................................148
Pull-up Resistors ......................................................133
RAM .........................................................................136
Memory Map ....................................................136
Speed .......................................................................151
Status and Control ...................................................130
Transfer Types .........................................................150
UFRMH:UFRML Registers ......................................136
USB
Internal Voltage Regulator Specifications ................279
Module Specifications ..............................................279
USB. See Universal Serial Bus.
DS39760A-page 314
Advance Information
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MICROCHIP [ MICROCHIP ]
