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): 51/122頁
文件大?。?/td> 1716K
代理商: ST7LITE19F1M6
ST7LITE0, ST7SUPERLITE
51/122
11.2 12-BIT AUTORELOAD TIMER (AT)
11.2.1 Introduction
The 12-bit Autoreload Timer can be used for gen-
eral-purpose timing functions. It is based on a free-
running 12-bit upcounter with a PWM output chan-
nel.
11.2.2 Main Features
I
12-bit upcounter with 12-bit autoreload register
(ATR)
I
Maskable overflow interrupt
I
PWM signal generator
I
Frequency range 2KHz-4MHz (@ 8 MHz f
CPU
)
– Programmable duty-cycle
– Polarity control
– Maskable Compare interrupt
I
Output Compare Function
Figure 33. Block Diagram
ATCSR
CMPIE
OVFIE
OVF
CK0
CK1
0
0
0
12-BIT AUTORELOAD VALUE
12-BIT UPCOUNTER
CMPF0 bit
CMPF0
CMP INTERRUPT
REQUEST
OVF INTERRUPT
REQUEST
f
CPU
ATR
P
POL-
ARITY
OP0 bit
PWM0
COMP-
PARE
f
COUNTER
f
PWM
O
OE0 bit
CNTR
(1 ms timebase
@ 8MHz)
f
LTIMER
DCR0H
Preload
DCR0L
Preload
Update on OVF Event
7
0
on OVF Event
IF OE0=1
0
1
12-BIT DUTY CYCLE VALUE (shadow)
OE0 bit
1
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