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参数资料
型号： ST72F60E1M1
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, PDSO24
封装： 0.300 INCH, LEAD FREE, PLASTIC, SOP-24
文件页数： 87/139页
文件大小： 1993K
代理商： ST72F60E1M1
ST7260xx
Watchdog timer (WDG)
51/139
16-bit read sequence
The 16-bit read sequence (from either the Counter register or the Alternate Counter
register) is illustrated in the following Figure 25.
Figure 25.
16-bit read sequence
The user must first read the MSB, afterwhich the LSB value is automatically buffered.
This buffered value remains unchanged until the 16-bit read sequence is completed, even if
the user reads the MSB several times.
After a complete reading sequence, if only the CLR register or ACLR register are read, they
return the LSB of the count value at the time of the read.
Whatever the timer mode used (input capture, output compare, one pulse mode or PWM
mode) an overflow occurs when the counter rolls over from FFFFh to 0000h then:
●
The TOF bit of the SR register is set.
●
A timer interrupt is generated if:
–
TOIE bit of the CR1 register is set and
–
I bit of the CC register is cleared.
If one of these conditions is false, the interrupt remains pending to be issued as soon as
they are both true.
Clearing the overflow interrupt request is done in two steps:
1.
Reading the SR register while the TOF bit is set.
2.
An access (read or write) to the CLR register.
Note:
The TOF bit is not cleared by access to the ACLR register. The advantage of accessing the
ACLR register rather than the CLR register is that it allows simultaneous use of the overflow
function and reading the free running counter at random times (for example, to measure
elapsed time) without the risk of clearing the TOF bit erroneously.
The timer is not affected by Wait mode.
In Halt mode, the counter stops counting until the mode is exited. Counting then resumes
from the previous count (MCU awakened by an interrupt) or from the reset count (MCU
awakened by a reset).
Read
At t0
Read
Returns the buffered
LSB value at t0
At t0 +
Δt
Other
instructions
Beginning of the sequence
Sequence completed
LSB is buffered
LSB
MSB
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相关代理商/技术参数
参数描述
ST72F60E2M1 功能描述:8位微控制器 -MCU ST7262 Lo Spd USB 8B MCU 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
ST72F60K1U1 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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
ST72F60K1U1TR 功能描述:8位微控制器 -MCU ST7262 Lo Spd USB 8B MCU 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
ST72F60K2B1 功能描述:8位微控制器 -MCU 8 BITS MICROCONTR 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
ST72F60K2U1TR 功能描述:8位微控制器 -MCU ST7262 Lo Spd USB 8B MCU 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
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