ST7FL15F1MAE STMICROELECTRONICS [STMicroelectronics], ST7FL15F1MAE Datasheet - Page 40

• Manufacturer Part Number: ST7FL15F1MAE
• Description: 8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7L15, ST7L19
POWER SAVING MODES (cont’d)
Similarities with Halt mode
The following AWUFH mode behavior is the same
as normal HALT mode:
– The MCU can exit AWUFH mode by means of
– When entering AWUFH mode, the I bit in the CC
Figure 27. AWUF Halt Timing Diagram
40/138
1
AWUFH interrupt
any interrupt with exit from Halt capability or a re-
set (see
register is forced to 0 to enable interrupts. There-
fore, if an interrupt is pending, the MCU wakes
up immediately.
f
f
AWU_RC
CPU
Section 9.4 HALT
RUN MODE
MODE).
HALT MODE
t
AWU
– In AWUFH mode, the main oscillator is turned
– The compatibility of Watchdog operation with
off, stopping all internal processing, including the
operation of the on-chip peripherals. None of the
peripherals are clocked except those which re-
ceive their clock supply from another clock gen-
erator (such as an external or auxiliary oscillator
like the AWU oscillator).
AWUFH mode is configured by the WDGHALT
option bit in the option byte. Depending on this
setting, the HALT instruction, when executed
while the Watchdog system is enabled, can gen-
erate a Watchdog RESET.
256 OR 4096 t
CPU
RUN MODE
Clear
by software