ST7LUS5 datasheet(53/124 Pages) STMICROELECTRONICS

부품명	ST7LUS5

상세설명	8-bit low cost, low pin-count MCU for automotive,with single voltage Flash memory, ADC, timers

PDF	124 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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53 / 124 page

ST7LUS5, ST7LU05, ST7LU09

Power saving modes

53/124

Figure 25.

AWUFH mode flowchart

WDGHALT is an option bit. See option bytes in Section 14.1.1: Flash configuration for more details.

Peripheral clocked with an external clock source can still be active.

Only an AWUFH interrupt and some specific interrupts can exit the MCU from Halt mode (such as external

interrupt). Refer to Table 15: Interrupt mapping on page 39 for more details.

Before servicing an interrupt, the CC register is pushed on the stack. The I[1:0] bits of the CC register are

set to the current software priority level of the interrupt routine and recovered when the CC register is

popped.

RESET

INTERRUPT(3)

CPU

MAIN OSC

PERIPHERALS(2)

I[1:0] BITS

OFF

FETCH RESET VECTOR

OR SERVICE INTERRUPT

CPU

MAIN OSC

PERIPHERALS

I[1:0] BITS

OFF

XX(4)

CPU

MAIN OSC

PERIPHERALS

I[1:0] BITS

XX(4)

64 CPU CLOCK

DELAY

WATCHDOG

ENABLE

DISABLE

WDGHALT(1)

WATCHDOG

RESET

CYCLE

AWU RC OSC

OFF

AWU RC OSC

OFF

HALT INSTRUCTION

(Active Halt disabled)

(AWUCSR.AWUEN=1)

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