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CST12.0MTWA Datasheet(PDF) 81 Page - STMicroelectronics

Part # CST12.0MTWA
Description  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
PDF  153 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

CST12.0MTWA Datasheet(HTML) 81 Page - STMicroelectronics

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SERIAL PERIPHERAL INTERFACE (Cont’d)
14.4.5 Low Power Modes
14.4.6 Interrupts
Note: The SPI interrupt events are connected to
the same interrupt vector (see Interrupts chapter).
They 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 SPI.
SPI interrupt events cause the device to exit from WAIT mode.
HALT
SPI registers are frozen.
In HALT mode, the SPI is inactive. SPI operation resumes when the MCU is woken up by an interrupt with
“exit from HALT mode” capability.
Interrupt Event
Event
Flag
Enable
Control
Bit
Exit
from
Wait
Exit
from
Halt
SPI End of Transfer Event
SPIF
SPIE
Yes
No
Master Mode Fault Event
MODF
Yes
No



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