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参数资料
| 型号： | ST7FL19F1MATRE |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO20 |
| 封装： | 0.300 INCH, LEAD FREE, PLASTIC, SOP-20 |
| 文件页数： | 101/138页 |
| 文件大小： | 2515K |
| 代理商： | ST7FL19F1MATRE |
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ST7L15, ST7L19
65/138
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, must be kept cleared
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 counter 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, must be kept cleared
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. The CNTRH register can be in-
cremented between the two reads, and in order to
be accurate when fTIMER =fCPU, the software
should take this into account when CNTRL and
CNTRH are read. If CNTRL is close to its highest
value, CNTRH could be incremented before it is
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
fLTIMER (1ms timebase @ 8 MHz)
0
1
fCPU
10
15
8
00
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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相关代理商/技术参数 |
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|---|---|
| ST7FL19F1MCE | 制造商:STMicroelectronics 功能描述: |
| ST7FL19F1MCRE | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI |
| ST7FL19F1MCTRE | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-bit MCU for automotive with single voltage Flash/ROM memory, data EEPROM, ADC, 5 timers, SPI |
| ST7FL34F2MAE | 功能描述:8位微控制器 -MCU 8-bit MCU Automotive RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| ST7FL34F2MCE | 制造商:STMicroelectronics 功能描述:8-BIT MCU FOR AUTOMOTIVE WITH SINGLE VOLTAGE FLASH/ROM - Rail/Tube |
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