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ST72340 bảng dữ liệu(PDF) 136 Page - STMicroelectronics

tên linh kiện ST72340
Giải thích chi tiết về linh kiện  8-BIT MCU WITH UP TO 16K FLASH MEMORY, 10-BIT ADC, TWO 16-BIT TIMERS, TWO I2C, SPI, SCI
PDF  191 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST72340 bảng dữ liệu(HTML) 136 Page - STMicroelectronics

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0.1.4I2C3S INTERFACE (Cont’d)
11.7.6 Low Power Modes
11.7.7 Interrupt Generation
Figure 80. Event Flags and Interrupt Generation
Mode
Description
WAIT
No effect on I2C interface.
I2C interrupts causes the device to exit from WAIT mode.
HALT
I2C registers are frozen.
In HALT mode, the I2C interface is inactive and does not acknowledge data on the bus. The I2C interface
resumes operation when the MCU is woken up by an interrupt with “exit from HALT mode” capability.
ACTIVE
HALT
I2C registers are frozen.
In ACTIVE HALT mode, the I2C interface is inactive and does not acknowledge data on the bus. The I2C
interface resumes operation when the MCU is woken up by an interrupt with “exit from ACTIVE HALT mode”
capability.
ITRE1/2
RF1
RF2
NACK
ITER
BERR
WF1
WF2
ITWE1/2
INTERRUPT 1
ITWE3
NACK
ITER
BERR
ITRE3
INTERRUPT 2
WF3
RF3
(Slave address 1/2)
(Slave address 3)
Data Status Flag
Data Status Flag
Dummy Write
Write Protect
Restart
Stop
Data Status Flag
Data Status Flag
Data Status Flag
Stop: Stop condition on SDA
Dummy Write: True if no data is written in RAM
Data Status Flag: Actual Interrupt is produced when
this condition is true
Write Protect: True for Write operation and if slaves
Restart: Restart condition on SDA
slaves 1 and 2. For slave 3 and for Read operation
write protect will always be 0)
are write protected (since this is applicable for



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