ST7LITE1xB
DUAL 12-BIT AUTORELOAD TIMER 4 (Cont’d)
11.2.4 Low Power Modes
Mode
WAIT
HALT
Description
No effect on AT timer
AT timer halted.
11.2.5 Interrupts
Interrupt
Event
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Overflow
Event
OVF1 OVIE1 Yes
AT4 IC Event ICF ICIE Yes
CMP Event CMPFx CMPIE Yes
Overflow
Event2
OVF2 OVIE2 Yes
Exit
from
Halt
No
No
No
No
Exit
from
Active-
Halt
Yes
No
No
No
Note: The CMP and AT4 IC events are connected
to the same interrupt vector.
The OVF event is mapped on a separate vector
(see Interrupts chapter).
They generate an interrupt if the enable bit is set in
the ATCSR register and the interrupt mask in the
CC register is reset (RIM instruction).
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