at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 105

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

6249D–ATARM–20-Dec-07
devices connected could be unintentionally driven at boot time, and electrical conflicts between
peripherals output pins and the connected devices may appear.
To assure correct functionality, it is recommended to plug in critical devices to other pins.
Table 13-7
are driven during the boot sequence for a period of less than 1 second if no correct boot program
is found.
For the DataFlash driven by the SPCK signal at 8 MHz, the time to download 72 KBytes is
reduced to 200 ms.
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 13-7.
Peripheral
MCI1
MCI1
MCI1
MCI1
MCI1
MCI1
SPI0
SPI0
SPI0
SPI0
PIOD
DBGU
DBGU
contains a list of pins that are driven during the boot program execution. These pins
Pins Driven during Boot Program Execution
MCCDA
MCDA0
MCDA1
MOSI
SPCK
NPCS0
DRXD
DTXD
Pin
MCCK
MCDA2
MCDA3
MISO
NANDCS
AT91SAM9263 Preliminary
PIO Line
PIOA10
PIOA11
PIOD15
PIOC30
PIOC31
PIOA6
PIOA7
PIOA8
PIOA9
PIOA1
PIOA0
PIOA2
PIOA5
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