ST72254G2-Auto STMicroelectronics, ST72254G2-Auto Datasheet - Page 69
ST72254G2-Auto
Manufacturer Part Number
ST72254G2-Auto
Description
8-bit MCU for automotive with single voltage Flash/ROM memory, ADC, 16-bit timers, SPI, I2C interfaces
Manufacturer
STMicroelectronics
Datasheet
1.ST72254G2-AUTO.pdf
(135 pages)
Specifications of ST72254G2-Auto
Clock Sources
crystal/ceramic resonator oscillators or RC oscillators, external clock, backup Clock Security System
3 Power Saving Modes
Halt, Wait and Slow
Two 16-bit Timers With
2 input captures, 2 output compares, external clock input on one timer, PWM and Pulse generator modes (one only on ST72104Gx-Auto and ST72216G1- Auto)
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SERIAL PERIPHERAL INTERFACE (Cont’d)
11.3.5 Low Power Modes
11.3.6 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).
SPI End of Transfer Event
Master Mode Fault Event
Mode
HALT
WAIT
No effect on SPI.
SPI interrupt events cause the device to exit from WAIT mode.
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.
ST72104Gx-Auto, ST72215Gx-Auto, ST72216Gx-Auto, ST72254Gx-Auto
Interrupt Event
Description
MODF
Event
SPIF
Flag
Control
Enable
SPIE
Bit
from
Wait
Exit
Yes
Yes
from
Halt
Exit
69/135
No
No
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