AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 16

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

System Controller
Figure 5. System Controller Block Diagram
16
AT91SAM7S32 Preliminary
PA0-PA20
PLLRC
NRST
XOUT
XIN
RCOSC
dbgu_irq
BOD
POR
OSC
periph_irq[2..14]
pmc_irq
PLL
rstc_irq
wdt_irq
en
pit_irq
rtt_irq
periph_nreset
periph_nreset
periph_nreset
periph_nreset
periph_nreset
periph_clk[2]
proc_nreset
gpnvm[0]
cal
dbgu_rxd
dbgu_rxd
SLCK
debug
debug
The System Controller manages all vital blocks of the microcontroller: interrupts, clocks,
power, time, debug and reset.
SLCK
MAINCK
SLCK
irq0
MCK
MCK
PLLCK
SLCK
int
idle
fiq
jtag_nreset
flash_poe
flash_wrdis
gpnvm[1]
System Controller
bod_rst_en
Management
Real-Time
Advanced
Watchdog
Controller
Controller
Controller
Controller
Interrupt
Periodic
Interval
Debug
Power
Reset
Timer
Timer
Timer
PIO
Unit
wdt_fault
WDRPROC
int
dbgu_irq
force_ntrst
dbgu_txd
pit_irq
rtt_irq
wdt_irq
periph_nreset
proc_nreset
ice_nreset
rstc_irq
periph_clk[2..14]
pck[0-2]
PCK
MCK
pmc_irq
idle
periph_irq{2]
irq0
fiq
dbgu_txd
Regulator
Controller
Voltage
Mode
ice_nreset
force_ntrst
periph_clk[4..14]
periph_irq[4..14]
periph_nreset
proc_nreset
proc_nreset
in
out
enable
jtag_nreset
flash_wrdis
cal
flash_poe
standby
debug
cal
gpnvm[0..1]
PCK
MCK
security_bit
nirq
nfiq
Boundary Scan
TAP Controller
ARM7TDMI
Peripherals
Embedded
Embedded
Controller
Regulator
Memory
Voltage
Flash
6071A–ATARM–28-Oct-04