參數(shù)資料
型號(hào)： 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(shí)器。的SPI
文件頁數(shù)： 54/122頁
文件大?。?/td> 1716K
代理商： ST7LITE19F1M6
ST7LITE0, ST7SUPERLITE
54/122
1
12-BIT AUTORELOAD TIMER
(Cont’d)
11.2.6 Register Description
TIMER CONTROL STATUS REGISTER (ATC-
SR)
Read / Write
Reset Value: 0000 0000 (00h)
Bit 7:5 = Reserved, must be kept cleared.
Bit 4:3 =
CK[1:0]
Counter Clock Selection.
These bits are set and cleared by software and
cleared by hardware after a reset. They select the
clock frequency of the counter. The change be-
comes effective after an overflow.
Bit 2 =
OVF
Overflow Flag.
This bit is set by hardware and cleared by software
by reading the ATCSR register. It indicates the
transition of the counter from FFh to ATR value.
0: No counter overflow occurred
1: Counter overflow occurred
Caution:
When set, the OVF bit stays high for 1 f
COUNTER
cycle, (up to 1ms depending on the clock selec-
tion).
Bit 1 =
OVFIE
Overflow Interrupt Enable.
This bit is read/write by software and cleared by
hardware after a reset.
0: OVF interrupt disabled
1: OVF interrupt enabled
Bit 0 =
CMPIE
Compare Interrupt Enable
.
This bit is read/write by software and clear by
hardware after a reset. It allows to mask the inter-
rupt generation when CMPF bit is set.
0: CMPF interrupt disabled
1: CMPF interrupt enabled
COUNTER REGISTER HIGH (CNTRH)
Read only
Reset Value: 0000 0000 (00h)
COUNTER REGISTER LOW (CNTRL)
Read only
Reset Value: 0000 0000 (00h)
Bits 15:12 = Reserved, must be kept cleared.
Bits 11:0 =
CNTR[11:0]
Counter Value
.
This 12-bit register is read by software and cleared
by hardware after a reset. The counter is incre-
mented continuously as soon as a counter clock is
selected. To obtain the 12-bit value, software
should read the counter value in two consecutive
read operations, LSB first. When a counter over-
flow occurs, the counter restarts from the value
specified in the ATR register.
7
0
0
0
0
CK1
CK0
OVF
OVFIE CMPIE
Counter Clock Selection
CK1
CK0
OFF
0
0
1
1
0
1
0
1
f
LTIMER
(1 ms timebase @ 8 MHz)
f
CPU
Reserved
15
8
0
0
0
0
CN11
CN10
CN9
CN8
7
0
CN7
CN6
CN5
CN4
CN3
CN2
CN1
CN0
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ST7LITE2_06 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MICROCONTROLLER WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
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