Datasheet
723
SAM9261 [DATASHEET]
Atmel-6062O-ATARM-SAM9261-Datasheet_21-Jun-16
43. Revision History
In the tables that follow, the most recent version of the document appears first. The initials “rfo” indicate changes
requested by product experts, or made during proof reading as part of the approval process.
Table 43-1. Revision History - SAM9261 Datasheet Revision 6082O
Date Comments
21-Jun-16
General formatting and editorial changes throughout
Several instances of “AT91SAM9261” changed to “SAM9261”
Throughout, instances of “32768 Hz” and “32,768 Hz” changed to “32.768 kHz”
“Features”
Deleted bullet “Required Power Supplies”
Section 1. “Block Diagram”
Figure 1-1 ”SAM9261 Block Diagram”: added label “Backup Section”; updated oscillator naming; “GPBREG”
changed to “GPBR (16 bytes )”
Section 3. “Package and Pinout”
Table 3-1 “SAM9261 Pinout for 217-ball LFBGA Package”: added footnote “NC pins must be left unconnected.”
Section 4. “Power Considerations”
Added Section 4.2 “Power Sequence Requirements” (transferred from Section 38.7 “Core Power Supply POR
Characteristics”) and updated content
Removed section “Power Consumption” (redundant with Section 38.3 “Power Consumption”)
Section 7. “Memories”
Updated Section 7.1.2.1 “BMS = 1, Boot on Embedded ROM”
Section 8. “System Controller”
Updated Section 8.3 “Shutdown Controller”
Updated Section 8.7 “Periodic Interval Timer”
Updated Section 8.8 “Watchdog Timer”
Updated Section 8.9 “Real-time Timer”
Updated Section 8.11 “Debug Unit”
Section 9. “Peripherals”
Table 9-1 “Peripheral Identifiers”: “SYSIRQ / System Interrupt” changed to “SYSC / System Controller Interrupt”
Updated Section 9.8 “Two-wire Interface”
Updated Section 9.11 “Timer Counter”
Updated Section 9.12 “Multimedia Card Interface”
Updated Section 9.13 “USB”
Section 10. “ARM926EJ-S Processor”
Table 10-1 “ARM9TDMI
™
Modes and Registers Layout” renamed to “ARM9EJ-S Modes and Registers Layout”
Section 12. “Boot Program”
Section 12.1 “Description”: “root directory of a FAT12/16/32 formatted SD Card” changed to “root directory of a
FAT12/16/32 formatted SD Card on Slot A”
Updated Section 12.4.2.1 “Example”
Section 12.7 “NAND Flash Boot”: in first paragraph, inserted “The first block must be guaranteed by the
manufacturer. There is no ECC check.”
Section 12.8 “SD Card Boot”: added “(Boot ROM does not support high capacity SDCards.)”