参数资料
型号: ST72T212G2M6
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PDSO28
封装: 0.300 INCH, PLASTIC, SOIC-28
文件页数: 15/78页
文件大小: 1214K
代理商: ST72T212G2M6
22/78
ST72101/ST72212/ST72213
3.5 MISCELLANEOUS REGISTER
The Miscellaneous register allows to select the
SLOW operating mode, the polarity of external in-
terrupt requests and to output the internal clock.
Register Address: 0020h
Read/Write
Reset Value: 0000 0000 (00h)
Bit 7:6 = PEI3-PEI2
External Interrupt EI1 Polarity
Option.
These bits are set and cleared by software. They
determine which event on EI1 causes the exter-
nal interrupt according to Table 8.
Table 8. EI1 External Interrupt Polarity Options
Bit 5 = MCO
Main Clock Out
This bit is set and cleared by software. When set it
allows to output the Internal Clock on PC2 I/O.
This pin is managed as an alternate function.
0 - PC2 is a normal I/O port.
1- fCPU outputs on PC2 pin.
Bit 4:3 = PEI1-PEI0
External Interrupt EI0 Polarity
Option.
These bits are set and cleared by software. They
determine which event on EI0 causes the exter-
nal interrupt according to Table 9.
Table 9. EI0 External Interrupt Polarity Options
Bit 1:2 = Unused, always read at 0.
Warning: Softwaremustwrite1tothesebitsfor
compatibility with future products.
Bit 0 = SMS
Slow Mode Select
This bit is set and cleared by software.
0- Normal mode - fCPU = Oscillator frequency / 2
(Reset state)
1- Slow mode - fCPU = Oscillator frequency /32
70
PEI3
PEI2
MCO
PEI1
PEI0
-
SMS
MODE
PEI3
PEI2
Falling edge and low level
(Reset state)
00
Falling edge only
1
0
Rising edge only
0
1
Rising and falling edge
1
MODE
PEI1
PEI0
Falling edge and low level
(Reset state)
00
Falling edge only
1
0
Rising edge only
0
1
Rising and falling edge
1
22
相关PDF资料
PDF描述
ST72T213G1M3 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO28
ST72T331N4T1 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72E331J4D0 8-BIT, UVPROM, 8 MHz, MICROCONTROLLER, CDIP42
ST72T331N2T1S 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
ST72T331J4B6 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP42
相关代理商/技术参数
参数描述
ST72T213G1B6 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI 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
ST72T213G1M6 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI 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
ST72T251G1B6 功能描述:8位微控制器 -MCU OTP EPROM 4K SPI/I2C 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
ST72T251G1M6 功能描述:8位微控制器 -MCU RO 511-ST72C254G1M6 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
ST72T251G2B6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI/I2C 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