ST7LIT15BF0 STMicroelectronics, ST7LIT15BF0 Datasheet - Page 64

• Manufacturer Part Number: ST7LIT15BF0
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7LIT15BF0

• Up To 4 Kbytes Single Voltage Extended Flash (xflash) 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.
• 128 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 (on ST7FLITE15B and ST7FLITE19B), crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow

ST7LITE1xB
DUAL 12-BIT AUTORELOAD TIMER 4 (Cont’d)
11.2.3.5 Input Capture Mode
The 12-bit ATICR register is used to latch the val-
ue of the 12-bit free running upcounter CNTR1 af-
ter a rising or falling edge is detected on the ATIC
pin. When an input capture occurs, the ICF bit is
set and the ATICR register contains the value of
the free running upcounter. An IC interrupt is gen-
erated if the ICIE bit is set. The ICF bit is reset by
Figure 43. Block Diagram of Input Capture Mode
Figure 44. Input Capture timing diagram
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1
ATIC
COUNTER1
ICF FLAG
f
ATIC PIN
COUNTER
@ 8 MHz)
f
(1 ms
LTIMER
timebase
32 MHz
f
OFF
CPU
01h
ATCSR
ATICR
02h
xxh
ICF
CNTR1
12-BIT INPUT CAPTURE REGISTER
ATR1
03h
ICIE
12-BIT AUTORELOAD REGISTER
04h
IC INTERRUPT
CK1
12-BIT UPCOUNTER1
REQUEST
05h
CK0
INTERRUPT
reading the ATICRH/ATICRL register when the
ICF bit is set. The ATICR is a read only register
and always contains the free running upcounter
value which corresponds to the most recent input
capture. Any further input capture is inhibited while
the ICF bit is set.
06h
07h
04h
08h
ATICR READ
09h
0Ah
09h
INTERRUPT
t