Rainbow Electronics AT91CAP9S250A User Manual

Page 998

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6264A–CAP–21-May-07

AT91CAP9S500A/AT91CAP9S250A

9.2 Reset Controller ..................................................................................... 29

9.3 Shutdown Controller ............................................................................... 29

9.4 Clock Generator ..................................................................................... 29

9.5 Power Management Controller ............................................................... 30

9.6 Periodic Interval Timer ........................................................................... 30

9.7 Watchdog Timer ..................................................................................... 31

9.8 Real-time Timer ...................................................................................... 31

9.9 General-Purpose Backed-up Registers .................................................. 31

9.10 Advanced Interrupt Controller .............................................................. 31

9.11 Debug Unit ........................................................................................... 31

9.12 Chip Identification ................................................................................. 32

9.13 PIO Controllers ..................................................................................... 32

10

Peripherals ................................................................................. 33

10.1 User Interface ....................................................................................... 33

10.2 Identifiers .............................................................................................. 33

10.3 Peripherals Signals Multiplexing on I/O Lines ...................................... 35

10.4 Embedded Peripherals ......................................................................... 40

11

Metal Programmable Block .......................................................45

11.1 Internal Connectivity ............................................................................. 45

11.2 External Connectivity ............................................................................ 47

11.3 Prototyping Solution ............................................................................. 47

12

ARM926EJ-S Processor Overview ........................................... 49

12.1 Overview .............................................................................................. 49

12.2 Block Diagram ...................................................................................... 50

12.3 ARM9EJ-S Processor .......................................................................... 50

12.4 CP15 Coprocessor ............................................................................... 58

12.5 Memory Management Unit (MMU) ....................................................... 61

12.6 Caches and Write Buffer ...................................................................... 62

12.7 Tightly-Coupled Memory Interface ....................................................... 64

12.8 Bus Interface Unit ................................................................................. 65

13

Debug and Test .......................................................................... 67

13.1 Description ........................................................................................... 67

13.2 Block Diagram ...................................................................................... 68

13.3 Application Examples ........................................................................... 69

13.4 Debug and Test Pin Description ........................................................... 70

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