at91sam9g45 ATMEL Corporation, at91sam9g45 Datasheet - Page 29

• Manufacturer Part Number: at91sam9g45
• Description: At91 Arm Thumb-based Microcontrollers
• Manufacturer: ATMEL Corporation

8.2
Figure 8-1.
6438CS–ATARM–13-Oct-09
System Controller Block Diagram
AT91SAM9G45 System Controller Block Diagram
PC0-PC31
PD0-PD31
PB0-PB31
PE0-PE31
VDDBU
PA0-PA31
XOUT32
WKUP
SHDN
XIN32
XOUT
NRST
XIN
VDDCORE
MAIN OSC
VDDBU
dbgu_irq
CLOCK
12MHz
SLOW
periph_irq[2..24]
pmc_irq
rstc_irq
POR
POR
OSC
OSC
wdt_irq
RC
PLLA
UPLL
periph_clk[2..6]
backup_nreset
backup_nreset
pit_irq
rtt_irq
periph_nreset
periph_nreset
periph_nreset
periph_nreset
proc_nreset
dbgu_rxd
dbgu_rxd
irq0-irq2
debug
debug
SLCK
SLCK
SLCK
SLCK
SLCK
MCK
MCK
backup_nreset
idle
SCKCR
fiq
int
rtt0_alarm
por_ntrst
jtag_nreset
MAINCK
PLLACK
UPLLCK
SLCK
System Controller
Management
Shut-Down
Real-Time
Real-Time
Controllers
Advanced
Watchdog
Controller
Controller
Controller
Controller
Interrupt
Periodic
Interval
Debug
Power
Reset
Timer
Timer
Clock
Timer
PIO
Unit
wdt_fault
WDRPROC
4 General-purpose
Backup Registers
int
dbgu_irq
dbgu_txd
pit_irq
wdt_irq
rstc_irq
periph_nreset
proc_nreset
backup_nreset
rtc_irq
rtc_alarm
rtt_irq
rtt_alarm
periph_clk[2..30]
pck[0-1]
PCK
MCK
DDR sysclk
pmc_irq
idle
periph_irq[2..6]
irq
fiq
dbgu_txd
UHP12M
UHP48M
VDDBU Powered
VDDCORE Powered
por_ntrst
periph_clk[6..30]
periph_irq[6..30]
periph_nreset
periph_irq[25]
periph_nreset
periph_nreset
periph_irq[24]
periph_nreset
proc_nreset
in
out
enable
jtag_nreset
UHP48M
UPLLCK
UHP12M
UPLLCK
debug
PCK
MCK
nirq
nfiq
ntrst
AT91SAM9G45
USB High Speed
USB High Speed
Boundary Scan
TAP Controller
ARM926EJ-S
Device Port
Peripherals
Embedded
Bus Matrix
Host Port
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