ST72T311 ST Microelectronics, ST72T311 Datasheet - Page 46

• Manufacturer Part Number: ST72T311
• Description: 8-BIT MCU WITH 8 TO 16K OTP/EPROM
• Manufacturer: ST Microelectronics

ST72E311 ST72T311
16-BIT TIMER (Cont’d)
4.3.4 Low Power Modes
4.3.5 Interrupts
Note: The 16-bit Timer interrupt events are con-
nected to the same interrupt vector (see Interrupts
chapter).
These events generate an interrupt if the corre-
sponding Enable Control Bit is set and the I-bit in
the CC register is reset (RIM instruction).
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WAIT
HALT
Input Capture 1 event/Counter reset in PWM mode
Input Capture 2 event
Output Compare 1 event (not available in PWM mode)
Output Compare 2 event (not available in PWM mode)
Timer Overflow event
Mode
46
No effect on 16-bit Timer.
Timer interrupts cause the device to exit from WAIT mode.
16-bit Timer registers are frozen.
In HALT mode, the counter stops counting until Halt mode is exited. Counting resumes from the previous
count when the MCU is woken up by an interrupt with “exit from HALT mode” capability or from the counter
reset value when the MCU is woken up by a RESET.
If an input capture event occurs on the ICAP i pin, the input capture detection circuitry is armed. Consequent-
ly, when the MCU is woken up by an interrupt with “exit from HALT mode” capability, the ICF i bit is set, and
the counter value present when exiting from HALT mode is captured into the IC i R register.
Interrupt Event
Description
Event
OCF1
OCF2
ICF1
ICF2
Flag
TOF
Control
Enable
OCIE
TOIE
ICIE
Bit
from
Wait
Exit
Yes
Yes
Yes
Yes
Yes
from
Halt
Exit
No
No
No
No
No