Stamp9G45
iii
Table of Contents
1. Introduction ................................................................................................................. 1
2. Scope ........................................................................................................................... 2
3. Overview of Technical Characteristics ........................................................................ 3
3.1. CPU .................................................................................................................... 3
3.2. Memory ............................................................................................................. 3
3.3. Interfaces and external signals ......................................................................... 3
3.4. Miscellaneous .................................................................................................... 4
3.5. Power Supply .................................................................................................... 4
3.6. Dimensions ........................................................................................................ 4
4. Hardware Description ................................................................................................. 5
4.1. Mechanics .......................................................................................................... 5
4.2. AT91SAM9G45 Processor Core ......................................................................... 5
4.3. Memory ............................................................................................................. 5
4.3.1. NAND Flash ............................................................................................ 5
4.3.2. LPDDR-SDRAM ........................................................................................ 6
4.3.3. EEPROM .................................................................................................. 6
4.3.4. SRAM ....................................................................................................... 6
4.4. Bus Matrix ......................................................................................................... 7
4.5. Advanced Interrupt Controller (AIC) ................................................................ 7
4.6. Battery Backup .................................................................................................. 8
4.7. Reset Controller (RSTC) ................................................................................... 8
4.8. Serial Number ................................................................................................... 8
4.9. Peripheral Input/Output Controller (PIO) ......................................................... 8
4.10. Clock Generation ............................................................................................. 9
4.10.1. Processor Clocks ................................................................................... 9
4.10.2. Programmable Clocks ......................................................................... 10
4.11. Power Management Controller (PMC) .......................................................... 10
4.11.1. Function ............................................................................................... 10
4.11.2. Power Management ............................................................................. 11
4.12. Real-time Timer (RTT) ................................................................................... 11
4.13. Timer Counter (TC) ....................................................................................... 12
4.14. Periodic Interval Timer (PIT) ........................................................................ 12
4.15. Watchdog Timer ............................................................................................ 12
4.16. Real-time Clock (RTC) ................................................................................... 12
4.17. True Random Number Generator (TRNG) .................................................... 12
4.18. Peripheral DMA Controller (PDC) ................................................................. 13
4.19. Debug Unit (DBGU) ...................................................................................... 13
4.20. JTAG Unit ...................................................................................................... 13
4.21. Two-wire Interface (TWI) .............................................................................. 14
4.22. Multimedia Card Interface (MCI) ................................................................. 14
4.23. USB Host Port (UHP) .................................................................................... 14
4.24. USB Device Port (UDP) ................................................................................. 15
4.25. Ethernet MAC (EMAC) .................................................................................. 15
4.26. Universal Sychronous Asynchronous Receiver and Transmitter (USART)
.................................................................................................................................. 15
4.27. Synchronous Peripheral Interface (SPI) ........................................................ 17
4.28. Synchronous Serial Controller (SSC) ............................................................ 17