參數(shù)資料
型號: ST7LITE19F1M6
英文描述: ST7LITE1 - 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY.DATA EEPROM. ADC. 4 TIMERS. SPI
中文描述: ST7LITE1 - 8單電壓閃存EEPROM的MEMORY.DATA位MCU。 ADC的。 4定時器。的SPI
文件頁數(shù): 46/122頁
文件大?。?/td> 1716K
代理商: ST7LITE19F1M6
ST7LITE0, ST7SUPERLITE
46/122
1
11 ON-CHIP PERIPHERALS
11.1 LITE TIMER (LT)
11.1.1 Introduction
The Lite Timer can be used for general-purpose
timing functions. It is based on a free-running 8-bit
upcounter with two software-selectable timebase
periods, an 8-bit input capture register and watch-
dog function.
11.1.2 Main Features
I
Realtime Clock
– 8-bit upcounter
– 1 ms or 2 ms timebase period (@ 8 MHz f
OSC
)
– Maskable timebase interrupt
I
Input Capture
– 8-bit input capture register (LTICR)
– Maskable interrupt with wakeup from Halt
Mode capability
I
Watchdog
– Enabled by hardware or software (configura-
ble by option byte)
– Optional reset on HALT instruction (configura-
ble by option byte)
– Automatically resets the device unless disable
bit is refreshed
– Software reset (Forced Watchdog reset)
– Watchdog reset status flag
Figure 30. Lite Timer Block Diagram
LTCSR
WATCHDOG
8-bit UPCOUNTER
/2
8-bit
f
LTIMER
f
WDG
8
LTIC
f
OSC
/32
WDGD
WDGE
WDG
RF
TBF
TBIE
TB
ICF
ICIE
WATCHDOG RESET
LTTB INTERRUPT REQUEST
LTIC INTERRUPT REQUEST
LTICR
INPUT CAPTURE
REGISTER
1
0
1 or 2 ms
(@ 8MHz
f
OSC
)
Timebase
To 12-bit AT TImer
f
LTIMER
0
7
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