AT91SAM7A3_04 Datasheet, PDF (571/575 Pages) ATMEL Corporation – AT91 ARM Thumb-based Microcontrollers

6042A–ATARM–23-Dec-04
AT91SAM7A3 Preliminary
USB Device Port (UDP) ............................................................................... 399
Overview.......................................................................................................... 399
Block Diagram................................................................................................. 400
Product Dependencies................................................................................... 400
I/O Lines....................................................................................................... 401
Power Management ..................................................................................... 401
Interrupt........................................................................................................ 401
Typical Connection......................................................................................... 402
Functional Description................................................................................... 403
USB V2.0 Full-speed Introduction ................................................................ 403
Handling Transactions with USB V2.0 Device Peripheral............................ 404
Controlling Device States............................................................................. 414
USB Device Port (UDP) User Interface ......................................................... 416
USB Frame Number Register ...................................................................... 417
USB Global State Register........................................................................... 418
USB Function Address Register .................................................................. 419
USB Interrupt Enable Register..................................................................... 420
USB Interrupt Disable Register .................................................................... 421
USB Interrupt Mask Register ....................................................................... 422
USB Interrupt Status Register ...................................................................... 424
USB Interrupt Clear Register ....................................................................... 427
USB Reset Endpoint Register ...................................................................... 428
USB Endpoint Control and Status Register ................................................. 429
USB FIFO Data Register.............................................................................. 432
USB Transceiver Control Register ............................................................... 434
MultiMedia Card Interface (MCI) ................................................................. 435
Description ...................................................................................................... 435
Block Diagram................................................................................................. 435
Application Block Diagram ............................................................................ 436
Pin Name List ................................................................................................. 436
Product Dependencies................................................................................... 436
I/O Lines....................................................................................................... 436
Power Management ..................................................................................... 436
Interrupt........................................................................................................ 436
Bus Topology.................................................................................................. 437
MultiMedia Card Operations .......................................................................... 438
Command - Response Operation ................................................................ 439
Data Transfer Operation .............................................................................. 441
Read Operation ............................................................................................ 441
Write Operation ............................................................................................ 443
SD Card Operations........................................................................................ 445
MultiMedia Card Interface (MCI) User Interface ........................................... 446
MCI Control Register.................................................................................... 447
MCI Mode Register ...................................................................................... 448
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