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| SAM7S256_14 Datasheet, PDF (27/775 Pages) ATMEL Corporation – ARM-based Flash MCU | |||
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Figure 9-2. System Controller Block Diagram (SAM7S32/16)
System Controller
jtag_nreset
Boundary Scan
TAP Controller
NRST
XIN
XOUT
PLLRC
PA0-PA20
irq0
fiq
periph_irq[2..14]
pit_irq
rtt_irq
wdt_irq
dbgu_irq
pmc_irq
rstc_irq
Advanced
Interrupt
Controller
int
MCK
periph_nreset
dbgu_rxd
Debug
Unit
dbgu_irq
force_ntrst
dbgu_txd
MCK
debug
periph_nreset
Periodic
Interval
Timer
pit_irq
SLCK
power_on_reset
Real-Time
Timer
rtt_irq
SLCK
debug
idle
proc_nreset
cal
gpnvm[0]
Watchdog
Timer
wdt_irq
gpnvm[1]
wdt_fault
WDRPROC
en
BOD
flash_wrdis
bod_rst_en
POR
power_on_reset
jtag_nreset
flash_poe
Reset
Controller
periph_nreset
proc_nreset
rstc_irq
Voltage
Regulator
Mode
Controller
SLCK
nirq
nfiq
proc_nreset
PCK
debug
power_on_reset
force_ntrst
security_bit
flash_poe
flash_wrdis
cal
gpnvm[0..1]
MCK
proc_nreset
standby
cal
ARM7TDMI
Embedded
Flash
Memory
Controller
Voltage
Regulator
RCOSC
SLCK
OSC
MAINCK
PLL
PLLCK
int
periph_nreset
periph_nreset
periph_clk[2]
dbgu_rxd
Power
Management
Controller
periph_clk[2..14]
pck[0-2]
PCK
MCK
pmc_irq
idle
PIO
Controller
periph_irq{2]
irq0
fiq
dbgu_txd
periph_clk[4..14]
periph_nreset
periph_irq[4..14]
Embedded
Peripherals
in
out
enable
SAM7S Series [DATASHEET] 27
6175MâATARMâ26-Oct-12
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