Electronic Components Datasheet Search
Selected language     English  â–¼


ST7DALI Datasheet(PDF) 66 Page - STMicroelectronics

Part No. ST7DALI
Description  8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI, DALI
Download  141 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo 

 66 page
background image
ST7DALI
66/141
LITE TIMER (Cont’d)
11.3.3 Functional Description
11.3.3.1 Timebase Counter 1
The 8-bit value of Counter 1 cannot be read or
written by software. After an MCU reset, it starts
incrementing from 0 at a frequency of fOSC/32. An
overflow event occurs when the counter rolls over
from F9h to 00h. If fOSC = 8 MHz, then the time pe-
riod between two counter overflow events is 1 ms.
This period can be doubled by setting the TB bit in
the LTCSR1 register.
When Counter 1 overflows, the TB1F bit is set by
hardware and an interrupt request is generated if
the TB1IE bit is set. The TB1F bit is cleared by
software reading the LTCSR1 register.
11.3.3.2 Timebase Counter 2
Counter 2 is an 8-bit autoreload upcounter. It can
be read by accessing the LTCNTR register. After
an MCU reset, it increments at a frequency of
fOSC/32 starting from the value stored in the
LTARR register. A counter overflow event occurs
when the counter rolls over from FFh to the
LTARR reload value. Software can write a new
value at anytime in the LTARR register, this value
will be automatically loaded in the counter when
the next overflow occurs.
When Counter 2 overflows, the TB2F bit in the
LTCSR2 register is set by hardware and an inter-
rupt request is generated if the TB2IE bit is set.
The TB2F bit is cleared by software reading the
LTCSR2 register.
11.3.3.3 Input Capture
The 8-bit input capture register is used to latch the
free-running upcounter (Counter 1) 1 after a rising
or falling edge is detected on the LTIC pin. When
an input capture occurs, the ICF bit is set and the
LTICR1 register contains the MSB of Counter 1.
An interrupt is generated if the ICIE bit is set. The
ICF bit is cleared by reading the LTICR register.
The LTICR is a read-only register and always con-
tains the data from the last input capture. Input
capture is inhibited if the ICF bit is set.
Figure 40. Input Capture Timing Diagram.
04h
8-bit COUNTER 1
t
01h
fOSC/32
xxh
02h
03h
05h
06h
07h
04h
LTIC PIN
ICF FLAG
LTICR REGISTER
CLEARED
4µs
(@ 8MHz fOSC)
fCPU
BY S/W
07h
READING
LTIC REGISTER
1




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97  98  99  100   ...More


Datasheet Download



Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
ST7LITE18-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY DATA EEPROM ADC 4 TIMERS SPI 1 2 3 4 5 MoreSTMicroelectronics
ST7LITE08-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY DATA EEPROM ADC TIMERS SPI 1 2 3 4 5 MoreSTMicroelectronics
ST7LITE28-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY DATA EEPROM ADC TIMERS SPI 1 2 3 4 5 MoreSTMicroelectronics
ST7LITE38-BIT MCU WITH SINGLE VOLTAGE FLASH DATA EEPROM ADC TIMERS SPI LINSCI 1 2 3 4 5 MoreSTMicroelectronics
ST72334J8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY ADC 16-BIT TIMERS SPI SCI INTERFACES 1 2 3 4 5 MoreSTMicroelectronics
ST72104G8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY ADC 16-BIT TIMERS SPI I2C INTERFACES 1 2 3 4 5 MoreSTMicroelectronics
ST7262LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS FLASH OR ROM MEMORY LVD WDG 10-BIT ADC 2 TIMERS SCI SPI 1 2 3 4 5 MoreSTMicroelectronics
ST72260G8-BIT MCU WITH FLASH OR ROM MEMORY ADC TWO 16-BIT TIMERS I2C SPI SCI INTERFACES 1 2 3 4 5 MoreSTMicroelectronics
ST72311R8-BIT MCU WITH NESTED INTERRUPTS EEPROM ADC 16-BIT TIMERS 8-BIT PWM ART SPI SCI CAN INTERFACES 1 2 3 4 5 MoreSTMicroelectronics

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com 2003 - 2017    


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl