參數(shù)資料
型號(hào): ST72C254G2M3
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI.
中文描述: 8位單電壓閃存微控制器。 ADC的。 16位定時(shí)器。的SPI。
文件頁(yè)數(shù): 91/140頁(yè)
文件大小: 1349K
代理商: ST72C254G2M3
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ST72104G, ST72215G, ST72216G, ST72254G
54/140
16-BIT TIMER (Cont’d)
12.2.4 Low Power Modes
12.2.5 Interrupts
Note: The 16-bit Timer interrupt events are connected to the same interrupt vector (see Interrupts chap-
ter). These events generate an interrupt if the corresponding Enable Control Bit is set and the interrupt
mask in the CC register is reset (RIM instruction).
12.2.6 Summary of Timer modes
1) See note 4 in Section 12.2.3.5 "One Pulse Mode" on page 54
2) See note 5 in Section 12.2.3.5 "One Pulse Mode" on page 54
3) See note 4 in Section 12.2.3.6 "Pulse Width Modulation Mode" on page 56
Mode
Description
WAIT
No effect on 16-bit Timer.
Timer interrupts cause the device to exit from WAIT mode.
HALT
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
iR register.
Interrupt Event
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
Input Capture 1 event/Counter reset in PWM mode
ICF1
ICIE
Yes
No
Input Capture 2 event
ICF2
Yes
No
Output Compare 1 event (not available in PWM mode)
OCF1
OCIE
Yes
No
Output Compare 2 event (not available in PWM mode)
OCF2
Yes
No
Timer Overflow event
TOF
TOIE
Yes
No
MODES
AVAILABLE RESOURCES
Input Capture 1
Input Capture 2
Output Compare 1 Output Compare 2
Input Capture (1 and/or 2)
Yes
Output Compare (1 and/or 2)
Yes
One Pulse mode
No
Not Recommended1)
No
Partially 2)
PWM Mode
No
Not Recommended3)
No
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