AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 55

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

Real-time Timer (RTT)
Overview
Block Diagram
Figure 22. Real-time Timer
6071A–ATARM–28-Oct-04
SLCK
RTT_MR
RTTRST
reload
Divider
16-bit
RTT_MR
RTPRES
The Real-time Timer is built around a 32-bit counter and used to count elapsed seconds. It
generates a periodic interrupt or/and triggers an alarm on a programmed value.
RTT_VR
RTT_AR
RTT_MR
RTTRST
0
1
Counter
CRTV
32-bit
ALMV
0
RTT_SR
RTT_SR
RTT_SR
=
read
AT91SAM7S32 Preliminary
reset
reset
set
set
RTTINC
ALMS
RTTINCIEN
RTT_MR
RTT_MR
ALMIEN
rtt_alarm
rtt_int
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