Manual

vi
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
29.4 USB Clock Controller .........................................................................355
29.5 Peripheral Clock Controller ................................................................356
29.6 Programmable Clock Output Controller ..............................................356
29.7 Programming Sequence .....................................................................356
29.8 Clock Switching Details ......................................................................360
29.9 Power Management Controller (PMC) User Interface .......................365
30 Advanced Interrupt Controller (AIC) ......................................383
30.1 Description .........................................................................................383
30.2 Block Diagram ....................................................................................384
30.3 Application Block Diagram .................................................................384
30.4 AIC Detailed Block Diagram ...............................................................384
30.5 I/O Line Description ............................................................................385
30.6 Product Dependencies .......................................................................385
30.7 Functional Description ........................................................................386
30.8 Advanced Interrupt Controller (AIC) User Interface ............................396
31 Debug Unit (DBGU) ..................................................................407
31.1 Description .........................................................................................407
31.2 Block Diagram ....................................................................................408
31.3 Product Dependencies .......................................................................409
31.4 UART Operations ...............................................................................409
31.5 Debug Unit User Interface .................................................................416
32 Parallel Input/Output Controller (PIO) ....................................431
32.1 Description .........................................................................................431
32.2 Block Diagram ....................................................................................432
32.3 Product Dependencies .......................................................................433
32.4 Functional Description ........................................................................434
32.5 I/O Lines Programming Example .......................................................438
32.6 User Interface .....................................................................................439
33 Serial Peripheral Interface (SPI) .............................................457
33.1 Description .........................................................................................457
33.2 Block Diagram ....................................................................................458
33.3 Application Block Diagram .................................................................458
33.4 Signal Description .............................................................................459
33.5 Product Dependencies .......................................................................459
33.6 Functional Description ........................................................................459