AT91SAM9261S-CJ ATMEL [ATMEL Corporation], AT91SAM9261S-CJ Datasheet - Page 20

• Manufacturer Part Number: AT91SAM9261S-CJ
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

9.1
Figure 9-1.
20
Block Diagram
AT91SAM9261S
System Controller Block Diagram
PC0-PC31
PB0-PB31
PA0-PA31
XOUT32
PLLRCA
PLLRCB
WKUP
SHDN
XIN32
XOUT
NRST
XIN
VDDCORE
VDDBU
CLOCK
dbgu_irq
SLOW
periph_irq[2..21]
pmc_irq
MAIN
PLLA
PLLB
POR
POR
OSC
OSC
wdt_irq
rstc_irq
periph_clk[2..4]
backup_nreset
backup_nreset
VDDBU Powered
pit_irq
VDDCORE Powered
rtt_irq
periph_nreset
periph_nreset
periph_nreset
periph_nreset
usb_suspend
proc_nreset
dbgu_rxd
dbgu_rxd
rtt_alarm
irq0-irq2
debug
debug
SLCK
SLCK
SLCK
SLCK
SLCK
MCK
MCK
idle
fiq
int
MAINCK
PLLBCK
PLLACK
ice_nreset
jtag_nreset
4 General-purpose
System Controller
Backup Registers
Management
Real-Time
Advanced
Watchdog
Controllers
Shutdown
Controller
Controller
Controller
Controller
Interrupt
Periodic
Interval
Debug
Reset
Power
Timer
Timer
Timer
PIO
Unit
wdt_fault
WDRPROC
int
dbgu_irq
force_ntrst
dbgu_txd
pit_irq
wdt_irq
periph_nreset
proc_nreset
backup_nreset
rstc_irq
rtt_irq
rtt_alarm
periph_clk[2..21]
pck[0-3]
PCK
UDPCK
UHPCK
LCDCK
MCK
pmc_irq
idle
periph_irq{2..4]
irq0-irq2
fiq
dbgu_txd
ice_nreset
force_ntrst
periph_clk[6..21]
periph_irq[6..21]
periph_nreset
periph_clk[10]
periph_nreset
periph_irq[10]
periph_clk[20]
periph_nreset
periph_irq[20]
periph_clk[21]
periph_nreset
periph_irq[21]
periph_nreset
usb_suspend
proc_nreset
in
out
enable
jtag_nreset
UDPCK
UHPCK
LCDCK
debug
MCK
PCK
nirq
nfiq
ntrst
Boundary Scan
TAP Controller
ARM926EJ-S
USB Device
Peripherals
Embedded
Bus Matrix
USB Host
Controller
LCD
Port
Port
6242DS–ATARM–06-Jan-09