ST7DALIF2 STMicroelectronics, ST7DALIF2 Datasheet - Page 77

• 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

ST7DALIF2
14.4
14.5
14.6
14.6.1
Low power modes
Table 36.
Interrupts
Table 37.
1. The CMP and IC events are connected to the same interrupt vector. The OVF event is mapped on a
2. Only if CK0=1 and CK1=0 (f
Register description
Timer control status register (ATCSR)
Read / Write
Reset Value: 0x00 0000 (x0h)
Bit 7 = Reserved.
Bit 6 = ICF Input Capture Flag.
This bit is set by hardware and cleared by software by reading the ATICR register (a read
access to ATICRH or ATICRL will clear this flag). Writing to this bit does not change the bit
value.
0: No input capture
1: An input capture has occurred
Bit 5 = ICIE IC Interrupt Enable.
This bit is set and cleared by software.
0: Input capture interrupt disabled
1: Input capture interrupt enabled
Slow
Wait
Active-halt
Halt
Overflow event
IC event
CMP event
separate vector (see
ATCSR register and the interrupt mask in the CC register is reset (RIM instruction).
Interrupt event
7
0
Mode
Effect of low power modes on AT2 timer
AT2 timer interrupt control bits
ICF
6
(1)
Table 15: Interrupt
COUNTER
ICIE
CMPF0
Event
OVF
flag
ICF
The input frequency is divided by 32
No effect on AT timer
AT timer halted except if CK0=1, CK1=0 and OVFIE=1
AT timer halted
= f
mapping). They generate an interrupt if the enable bit is set in the
LTIMER
CK1
)
control
Enable
CMPIE
OVIE
ICIE
bit
CK0
Description
from
Wait
Exit
Yes
Yes
Yes
12-bit autoreload timer 2 (AT2)
OVF
from
Halt
Exit
No
No
No
OVFIE
Active-halt
Yes
from
CMPIE
Exit
No
No
(2)
0
77/171