at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 126

• Manufacturer Part Number: at91rm3400
• Description: Atmel Advanced At91 Arm Microcontroller
• Manufacturer: ATMEL Corporation

Block Diagram
Figure 35. Power Management Controller Block Diagram
126
XOUT32
PLLRCA
PLLRCB
XIN32
XOUT
XIN
AT91RM3400
Clock Generator
Slow Clock
Oscillator
Oscillator
Divider A
Divider B
PLL and
PLL and
APB
Main
User Interface
Power Management Controller
Slow
Clock
SLCK
Main
Clock
PLLA
Clock
PLLB
Clock
PLLA Clock
PLLB Clock
PLLA Clock
PLLB Clock
Main Clock
Main Clock
SLCK
SLCK
Master Clock Controller
Programmable Clock Controller
PLLB
Clock
Prescaler
Prescaler
/2,/4,...,/64
/2,/4,...,/64
Clock Controller
Peripherals
USB Clock
Controller
ARM9-systems
ON/OFF
ON/OFF
/1,/2,/3,/4
Divider
only
Processor
Controller
Idle Mode
Clock
Clock
SLCK
Slow
30
4
Processor
Processor
Programmable
Suspend
(Continuous)
(Individually
Switchable)
UDPCK
UHPCK
MCK
Clock
IRQ or FIQ
PMCIRQ
Clock
Clocks
MCK
SLCK
Peripherals
Embedded
ARM920T
Processor
Processor
Memory Controller
ARM7
UDP
UHP
RTC
PIO
AIC
ST
1790A–ATARM–11/03
PCK0-PCK3