ST7DALIF2 STMicroelectronics, ST7DALIF2 Datasheet - Page 58

• Manufacturer Part Number: ST7DALIF2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7DALIF2

• 8 Kbytes Single Voltage Flash Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55°C.
• 256 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55°C.
• Clock Sources: Internal 1% RC oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt

Power saving modes
11.6.1
58/171
Figure 29. AWUFH mode flowchart
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
4. Before servicing an interrupt, the CC register is pushed on the stack. The I[1:0] bits of the CC register are
5. If the PLL is enabled by option byte, it outputs the clock after an additional delay of t
Register description
AWUFH control/status register (AWUCSR)
Read/Write
Reset Value: 0000 0000 (00h)
Bits 7:3 = Reserved.
interrupt). Refer to
set to the current software priority level of the interrupt routine and recovered when the CC register is
popped.
Figure
7
0
11).
0
Table 15: Interrupt mapping on page 47
0
(AWUCSR.AWUEN=1)
HALT INSTRUCTION
N
(Active-halt disabled)
WATCHDOG
WDGHALT
RESET
1
INTERRUPT
Y
1)
0
ENABLE
3)
256 OR 4096 CPU CLOCK
OR SERVICE INTERRUPT
0
FETCH RESET VECTOR
AWU RC OSC
AWU RC OSC
MAIN OSC
PERIPHERALS
CPU
MAIN OSC
PERIPHERALS
CPU
AWU RC OSC
MAIN OSC
PERIPHERALS
CPU
I[1:0] BITS
I[1:0] BITS
I[1:0] BITS
N
CYCLE
for more details.
0
RESET
Y
WATCHDOG
DELAY
DISABLE
2)
XX
XX
OFF
OFF
OFF
OFF
OFF
OFF
5)
ON
ON
ON
ON
ON
ON
10
AWU
4)
4)
F
STARTUP
AWUM
(see
ST7DALIF2
AWUEN
0