Rainbow Electronics AT91CAP9S250A - Manual (Page 28)

28
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
9.1 System Controller Block Diagram
Figure 9-1. AT91CAP9S500A/AT91CAP9S250A System Controller Block Diagram
NRST
SLCK
Advanced
Interrupt
Controller
Real-Time
Timer
Periodic
Interval
Timer
Reset
Controller
PA0-PA31
periph_nreset
System Controller
Watchdog
Timer
wdt_fault
WDRPROC
PIO
Controllers
Power
Management
Controller
XIN
XOUT
PLLRCA
MAINCK
PLLACK
pit_irq
MCK
proc_nreset
wdt_irq
periph_irq[2] periph_nreset
periph_clk[2..31]
PCK
MCK
pmc_irq
nirq
nfiq
rtt_irq
Embedded
Peripherals
periph_clk[2]
pck[0-3]
in
out
enable
ARM926EJ-S
SLCK
SLCK
irq0-irq1
fiq
irq0-irq1
fiq
periph_irq[7..27]
periph_irq[2..29]
int
int
periph_nreset
periph_clk[7..31]
jtag_nreset
por_ntrst
proc_nreset
periph_nreset
dbgu_txd
dbgu_rxd
pit_irq
rtt_irq
dbgu_irq
pmc_irq
rstc_irq
wdt_irq
rstc_irq
SLCK
Boundary Scan
TAP Controller
jtag_nreset
debug
PCK
debug
idle
debug
Bus Matrix
MCK
periph_nreset
proc_nreset
backup_nreset
periph_nreset
idle
Debug
Unit
dbgu_irq MCK
dbgu_rxd
periph_nreset
dbgu_txd
rtt_alarm
Shut-Down
Controller
SLCK
rtt_alarm
backup_nreset
SHDN
WKUP
4 General-purpose
Backup Registers
backup_nreset
XIN32
XOUT32
PLLRCB PLLBCK
PB0-PB31
PC0-PC31
VDDBU Powered
VDDCORE Powered
ntrst
VDDCORE
POR
MAIN
OSC
PLLA
VDDBU
POR
SLOW
CLOCK
OSC
PLLB
por_ntrst
Voltage
Controller
battery_save
PD0-PD31
UHPCK
USB Host
Port
UHPCK
periph_nreset
periph_clk[29]
periph_irq[29]
USB High-speed
Device Port
UDPHSCK
periph_nreset
periph_clk[28]
periph_irq[28]
UTMI PLL UDPHSCK