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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： 41/139页
文件大小： 1993K
代理商： ST72F60E1M1
ST7260xx
Known limitations
135/139
19
Known limitations
19.1
PA2 limitation with OCMP1 enabled
Description
This limitation affects only Rev B Flash devices (with Internal Sales Type 72F60xxxxx$x7); it
has been corrected in Rev W Flash devices (with Internal Sales Type 72F60xxxxx$x9).
Refer to Figure 69 on page 137.
When Output Compare 1 function (OCMP1) on pin PA6 is enabled by setting the OC1E bit in
the TCR2 register, pin PA2 is also affected.
In particular, the PA2 pin is forced to be floating even if port configuration (PADDR+PADR)
has set it as output low. However, it can be still used as an input.
19.2
Unexpected reset fetch
If an interrupt request occurs while a "POP CC" instruction is executed, the interrupt
controller does not recognise the source of the interrupt and, by default, passes the RESET
vector address to the CPU.
Workaround
To solve this issue, a "POP CC" instruction must always be preceded by a "SIM" instruction.
19.3
SCI wrong break duration
Description
A single break character is sent by setting and resetting the SBK bit in the SCICR2 register.
In some cases, the break character may have a longer duration than expected:
●
20 bits instead of 10 bits if M=0
●
22 bits instead of 11 bits if M=1
In the same way, as long as the SBK bit is set, break characters are sent to the TDO pin.
This may lead to generate one break more than expected.
Occurrence
The occurrence of the problem is random and proportional to the baudrate. With a transmit
frequency of 19200 baud (fCPU=8 MHz and SCIBRR=0xC9), the wrong break duration
occurrence is around 1%.
Workaround
If this wrong duration is not compliant with the communication protocol in the application,
software can request that an Idle line be generated before the break character. In this case,
the break duration is always correct assuming the application is not doing anything between
the idle and the break. This can be ensured by temporarily disabling interrupts.
相关PDF资料
PDF描述
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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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