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參數(shù)資料
| 型號： | ST7FLIT19BF1U6TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC20 |
| 封裝： | LEAD FREE, QFN-20 |
| 文件頁數(shù)： | 122/153頁 |
| 文件大小： | 2862K |
| 代理商： | ST7FLIT19BF1U6TR |
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ST7LITE1xB
70/153
DUAL 12-BIT AUTORELOAD TIMER 4 (Cont’d)
11.2.6 Register Description
TIMER CONTROL STATUS REGISTER
(ATCSR)
Read / Write
Reset Value: 0x00 0000 (x0h)
Bit 7 = Reserved.
Bit 6 = ICF Input Capture Flag.
This bit is set by hardware and cleared by software
by reading the ATICR register (a read access to
ATICRH or ATICRL will clear this flag). Writing to
this bit does not change the bit value.
0: No input capture
1: An input capture has occurred
Bit 5 = ICIE IC Interrupt Enable.
This bit is set and cleared by software.
0: Input capture interrupt disabled
1: Input capture interrupt enabled
Bits 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.
Bit 2 = OVF1 Overflow Flag.
This bit is set by hardware and cleared by software
by reading the ATCSR register. It indicates the
transition of the counter1 CNTR1 from FFFh to
ATR1 value.
0: No counter overflow occurred
1: Counter overflow occurred
Bit 1 = OVFIE1 Overflow Interrupt Enable.
This bit is read/write by software and cleared by
hardware after a reset.
0: Overflow interrupt disabled.
1: Overflow interrupt enabled.
Bit 0 = CMPIE Compare Interrupt Enable.
This bit is read/write by software and cleared by
hardware after a reset. It can be used to mask the
interrupt generated when any of the CMPFx bit is
set.
0: Output compare interrupt disabled.
1: Output Compare interrupt enabled.
COUNTER REGISTER 1 HIGH (CNTR1H)
Read only
Reset Value: 0000 0000 (00h)
COUNTER REGISTER 1 LOW (CNTR1L)
Read only
Reset Value: 0000 0000 (00h)
Bits 15:12 = Reserved.
Bits 11:0 = CNTR1[11:0] Counter Value.
This 12-bit register is read by software and cleared
by hardware after a reset. The counter CNTR1 in-
crements 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. As there is no latch, it is recom-
mended to read LSB first. In this case, CNTR1H
can be incremented between the two read opera-
tions and to have an accurate result when
ftimer=fCPU, special care must be taken when
CNTR1L values close to FFh are read.
When a counter overflow occurs, the counter re-
starts from the value specified in the ATR1 regis-
ter.
70
0
ICF
ICIE
CK1
CK0
OVF1 OVFIE1 CMPIE
Counter Clock Selection
CK1
CK0
OFF
0
32MHz
1
fLTIMER (1 ms timebase @ 8 MHz)
0
1
fCPU
10
15
8
0
000
CNTR1_
11
CNTR1_
10
CNTR1_
9
CNTR1_
8
70
CNTR1_
7
CNTR1_
6
CNTR1_
5
CNTR1_
4
CNTR1_
3
CNTR1_
2
CNTR1_
1
CNTR1_
0
1
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| ST7FLIT19BU6TR | 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ST7FLIT19BY0B6 | 功能描述:8位微控制器 -MCU ST7LITE1xB 8B MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ST7FLIT19BY0BX | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI |
| ST7FLIT19BY0M6 | 功能描述:8位微控制器 -MCU ST7LITE1xB 8B MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| ST7FLIT19BY0MX | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI |
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