at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 135

• Manufacturer Part Number: at91sam9263
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

16. Periodic Interval Timer (PIT)
16.1
16.2
Figure 16-1. Periodic Interval Timer
6249D–ATARM–20-Dec-07
Prescaler
MCK
Overview
Block Diagram
MCK/16
The Periodic Interval Timer (PIT) provides the operating system’s scheduler interrupt. It is
designed to offer maximum accuracy and efficient management, even for systems with long
response time.
Counter
0
CPIV
CPIV
20-bit
0
1
PIT_PIVR
PIT_PIIR
PIT_MR
= ?
PIV
0
AT91SAM9263 Preliminary
0
PICNT
Adder
12-bit
PICNT
1
PIT_SR
read PIT_PIVR
PITS
set
reset
PIT_MR
PITIEN
pit_irq
135