参数资料
型号: ST7PL38F2MC/XXXE
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOP-20
文件页数: 108/168页
文件大小: 2955K
代理商: ST7PL38F2MC/XXXE
Obsolete
Product(s)
- Obsolete
Product(s)
ST7L34, ST7L35, ST7L38, ST7L39
44/168
POWER SAVING MODES (cont’d)
Figure 30. AWUFH Mode Flowchart
Notes:
1. WDGHALT is an option bit. See option byte section for
more details.
2. Peripheral clocked with an external clock source can
still be active.
3. Only an AWUFH interrupt and some specific interrupts
can exit the MCU from HALT mode (such as external in-
for more details.
4. 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
INTERRUPT3)
Y
N
Y
CPU
MAIN OSC
PERIPHERALS2)
I[1:0] BITS
OFF
10
OFF
FETCH RESET VECTOR
OR SERVICE INTERRUPT
CPU
MAIN OSC
PERIPHERALS
I[1:0] BITS
ON
OFF
XX4)
ON
CPU
MAIN OSC
PERIPHERALS
I[1:0] BITS
ON
XX4)
ON
256 CPU CLOCK
DELAY
WATCHDOG
ENABLE
DISABLE
WDGHALT1)
0
WATCHDOG
RESET
1
CYCLE
AWU RC OSC
ON
AWU RC OSC
OFF
AWU RC OSC
OFF
HALT INSTRUCTION
(Active Halt disabled)
(AWUCSR.AWUEN=1)
1
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