Atmel Evaluation Kit AT91SAM9M10-G45-EK AT91SAM9M10-G45-EK Data Sheet

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SAM9M10 [DATASHEET]

6355F–ATARM–12-Mar-13

If no valid code has been found in NVM during the NVM bootloader sequence, the SAM-BA Monitor program is
launched.

The SAM-BA Monitor principle is to:

– Initialize DBGU and USB

– Check if USB Device enumeration has occurred.

– Check if characters have been received on the DBGU.

– Once the communication interface is identified, the application runs in an infinite loop waiting for 

different commands as listed in 

SD Card

MCI0

MCI0_CK

PIOA0

MCI0

MCI0_CD

PIOA1

MCI0

MCI0_D0

PIOA2

MCI0

MCI0_D1

PIOA3

MCI0

MCI0_D2

PIOA4

MCI0

MCI0_D3

PIOA5

SPI Flash

SPI0

MOSI PIOB1

SPI0

MISO

PIOB0

SPI0

SPCK

PIOB2

SPI0

NPCS0

PIOB3

TWI0 EEPROM

TWI0

TWD0

PIOA20

TWI0

TWCK0

PIOA21

SAM-BA Monitor

DBGU

DRXD

PIOB12

DBGU

DTXD

PIOB13

PIO Driven during Boot Program Execution (Continued)