at91sam9x25-cu ATMEL Corporation, at91sam9x25-cu Datasheet - Page 30

• Manufacturer Part Number: at91sam9x25-cu
• Description: At91sam Arm-based Embedded Mpu
• Manufacturer: ATMEL Corporation

Figure 8-1.
30
SAM9X25
SAM9X25 System Controller Block Diagram
PC0-PC31
PD0-PD21
PB0-PB18
PA0-PA31
XOUT32
VDDBU
WKUP
SHDN
NRST
XIN32
XOUT
XIN
VDDCORE
MAIN OSC
VDDBU
CLOCK
dbgu_irq
12MHz
SLOW
pmc_irq
periph_irq[2..30]
POR
POR
OSC
wdt_irq
rstc_irq
PLLA
UPLL
periph_clk[2..3]
backup_nreset
pit_irq
periph_nreset
periph_nreset
periph_nreset
periph_nreset
proc_nreset
12M RC
dbgu_rxd
dbgu_rxd
OSC
debug
debug
SLCK
SLCK
SLCK
SLCK
MCK
MCK
backup_nreset
idle
irq
SCKCR
SCKCR
fiq
rtc_alarm
int
32K RC
por_ntrst
jtag_nreset
OSC
MAINCK
UPLLCK
PLLACK
SLCK
System Controller
Management
Shut-Down
Watchdog
Real-Time
Controllers
Advanced
Controller
Controller
Controller
Controller
Interrupt
Periodic
Interval
Debug
BSCR
Power
Reset
Timer
Timer
Clock
PIO
Unit
wdt_fault
WDRPROC
4 General-purpose
Backup Registers
dbgu_irq
dbgu_txd
pit_irq
wdt_irq
rstc_irq
periph_nreset
proc_nreset
backup_nreset
rtc_irq
rtc_alarm
periph_clk[2..30]
pck[0-1]
UHP48M
UHP12M
PCK
MCK
DDR sysclk
pmc_irq
idle
SMDCK = periph_clk[4]
periph_irq[2..3]
irq
fiq
dbgu_txd
int
VDDBU Powered
VDDCORE Powered
por_ntrst
periph_clk[5..30]
periph_irq[5..30]
periph_nreset
periph_irq[23]
periph_nreset
periph_nreset
periph_irq[22]
periph_nreset
periph_irq[4]
periph_nreset
in
out
enable
proc_nreset
jtag_nreset
UHP48M
UPLLCK
UHP12M
UPLLCK
SMDCK
debug
MCK
PCK
nirq
nfiq
ntrst
USB High Speed
USB High Speed
Software Modem
Boundary Scan
TAP Controller
ARM926EJ-S
Device Port
Peripherals
Bus Matrix
Embedded
Host Port
SMD
11054AS–ATARM–29-Jul-11