Atmel ARM-Based Evaluation Kit AT91SAM9N12-EK AT91SAM9N12-EK Data Sheet
Product codes
AT91SAM9N12-EK
141
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
16.3
Block Diagram
Figure 16-1. Periodic Interval Timer
20-bit
Counter
MCK/16
PIV
PIT_MR
CPIV
PIT_PIVR
PICNT
12-bit
Adder
0
0
read PIT_PIVR
CPIV
PICNT
PIT_PIIR
PITS
PIT_SR
set
reset
PITIEN
PIT_MR
pit_irq
1
0
1
0
MCK
Prescaler
=