at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 158

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

158
AT91RM3400
Writing the ST_RTMR immediately reloads and restarts the clock divider with the new pro-
grammed value. This also resets the 20-bit counter.
Warning: If RTPRES is programmed with a period less or equal to the current MCK period, the update of
the RTTINC and ALMS status bits and their associated interrupt generation are unpredictable.
Figure 51. Real Time Timer
SLCK
RTPRES
Divider
16-bit
ALMV
Counter
20-bit
=
RTTINC
ALMS
1790A–ATARM–11/03