at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 27

• Manufacturer Part Number: at91cap7e
• Description: Customizable Microcontroller
• Manufacturer: ATMEL Corporation

Figure 9-4.
9.7
9.8
9.9
8549A–CAP–10/08
Periodic Interval Timer
Watchdog Timer
Real-Time Timer
AT91CAP7E Power Management Controller Block Diagram
PLLBCK
PLLACK
MAINCK
SLCK
• Includes a 20-bit Periodic Counter, with less than 1μs accuracy
• Includes a 12-bit Interval Overlay Counter
• Real Time OS or Linux/WinCE compliant tick generator
• 16-bit key-protected only-once-Programmable Counter
• Windowed, prevents the processor to be in a dead-lock on the watchdog access
• One Real-Time Timer, allowing backup of time
– 32-bit Free-running, back-up Counter
– Integrates a 16-bit programmable prescaler running on the embedded 32.768Hz
– Alarm Register capable to generate a wake-up of the system through the Shut Down
oscillator
Controller
Master Clock Controller
MAINCK
PLLBCK
PLLACK
PLLBCK
SLCK
/1,/2,/4,...,/64
Prescaler
Programmable Clock Controller
USB Clock Controller
Divider
/1,/2,/4
/1,/2,/4,...,/64
Prescaler
ON/OFF
ON/OFF
Clock Controller
Processor
Controller
Idle Mode
ON/OFF
Clock
Peripherals
ON/OFF
MCK
PCK
int
periph_clk[..]
pck[..]
UDPCK
UHPCK
AT91CAP7E
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