Datasheet

61
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
Figure 11-2. NVM Bootloader Sequence Diagram
5-----Y
6-----Y
7-----Y
Table 11-2. Boot Sequence Configuration Register Values
BOOT Value
SPI0 NPCS0 SDCard
NAND
Flash SPI0 NPCS1 TWI EEPROM
SAM-BA
Monitor
SPI0 CS0 Flash Boot
SPI0 CS1 Flash Boot
Ye s
Ye s
TWI EEPROM Boot
Ye s
NAND Flash Boot
Copy from
NAND Flash to SRAM
Run
Ye s
NAND Flash Bootloader
No
SD Card Boot
Copy from
SD Card to SRAM
Run
Ye s
SD Card Bootloader
No
Device
Setup
No
No
SAM-BA
Monitor
Copy from
SPI Flash to SRAM
Copy from
SPI Flash to SRAM
SPI Flash Bootloader
SPI Flash Bootloader
Run
Run
No
Copy from
TWI EEPROM to SRAM
TWI EEPROM BootloaderRun