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ST72C171 bảng dữ liệu(PDF) 42 Page - STMicroelectronics

tên linh kiện ST72C171
Giải thích chi tiết về linh kiện  8-BIT MCU with 8K FLASH, ADC, WDG, SPI, SCI, TIMERS SPGAs Software Programmable Gain Amplifiers, OP-AMP
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OP-AMP MODULE (Cont’d)
7.3.7 Low Power Modes
Note: Low Power modes have no effect on the SPGAs & the Op-Amp. They can be switched off to reduce
the power consumption of the ST7 (OAxON bits).
7.3.8 Interrupts
* The interrupt event occurs when the OAxP bit equals the OAxV bit value.
Note: The SPGA interrupt events are connected to 2 interrupt vectors (see Interrupts chapter). 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).
Mode
Description
WAIT
No effect on op-amp.
SPGA interrupts cause the device to exit from WAIT mode.
HALT
No effect on op-amp.
SPGA interrupts cause the device to exit from HALT mode.
Interrupt Event
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
Op-Amp 1 output in comparator mode equals to OA1P bit value
NA*
OA1IE
Yes
Yes
Op-Amp 2 output in comparator mode equals to OA2P bit value
NA*
OA2IE
Yes
Yes



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