AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 66

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

11.5
6438F–ATARM–21-Jun-10
SAM-BA Monitor
Before performing the jump to the application in internal SRAM, all the PIOs and peripherals
used in the boot program are set to their reset state.
Table 11-3.
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:
NVM Bootloader
NAND
SD Card
SPI Flash
TWI0 EEPROM
SAM-BA Monitor
– 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
PIO Driven during Boot Program Execution
Peripheral
EBI CS3 SMC
EBI CS3 SMC
EBI CS3 SMC
EBI CS3 SMC
MCI0
MCI0
MCI0
MCI0
MCI0
MCI0
SPI0
SPI0
SPI0
SPI0
TWI0
TWI0
DBGU
DBGU
Pin
NANDCS
NAND ALE
NAND CLE
Cmd/Addr/Data
MCI0_CK
MCI0_CD
MCI0_D0
MCI0_D1
MCI0_D2
MCI0_D3
MOSI
MISO
SPCK
NPCS0
TWD0
TWCK0
DRXD
DTXD
Table
.
AT91SAM9G45
PIO Line
PIOC14
PIOA20
PIOA21
PIOB12
PIOB13
D[16:0]
PIOA0
PIOA1
PIOA2
PIOA3
PIOA4
PIOA5
PIOB1
PIOB0
PIOB2
PIOB3
A21
A22
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