参数资料
型号: ST72C314N4T6XXX
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, PQFP64
封装: TQFP-64
文件页数: 96/153页
文件大小: 2235K
代理商: ST72C314N4T6XXX
ST72334J/N, ST72314J/N, ST72124J
47/153
MISCELLANEOUS REGISTERS (Cont’d)
13.3 REGISTERS DESCRIPTION
MISCELLANEOUS REGISTER 1 (MISCR1)
Read /Write
Reset Value: 0000 0000 (00h)
Bit 7:6 = IS1[1:0]
ei2 and ei3 sensitivity
The interrupt sensitivity, defined using the IS1[1:0]
bits, is applied to the following external interrupts:
ei2 (port B3..0) and ei3 (port B7..4). These 2 bits
can be written only when the I bit of the CC register
is set to 1 (interrupt disabled).
Bit 5 = MCO
Main clock out selection
This bit enables the MCO alternate function on the
I/O port. It is set and cleared by software.
0: MCO alternate function disabled
(I/O pin free for general-purpose I/O)
1: MCO alternate function enabled
(fOSC/2 on I/O port)
Note: To reduce power consumption, the MCO
function is not active in ACTIVE-HALT mode.
Bit 4:3 = IS2[1:0]
ei0 and ei1 sensitivity
The interrupt sensitivity, defined using the IS2[1:0]
bits, is applied to the following external interrupts:-
ei0 (port A3..0) and ei1 (port F2..0). These 2 bits
can be written only when the I bit of the CC register
is set to 1 (interrupt disabled).
Bit 2:1 = CP[1:0]
CPU clock prescaler
These bits select the CPU clock prescaler which is
applied in the different slow modes. Their action is
conditioned by the setting of the SMS bit. These
two bits are set and cleared by software
Bit 0 = SMS
Slow mode select
This bit is set and cleared by software.
0: Normal mode. fCPU = fOSC / 2
1: Slow mode. fCPU is given by CP1, CP0
See low power consumption mode and MCC
chapters for more details.
70
IS11
IS10
MCO
IS21
IS20
CP1
CP0
SMS
External Interrupt Sensitivity
IS11 IS10
Falling edge & low level
0
Rising edge only
0
1
Falling edge only
1
0
Rising and falling edge
1
fCPU in SLOW mode
CP1 CP0
fOSC / 4
0
fOSC / 8
1
0
fOSC / 16
0
1
fOSC / 32
1
相关PDF资料
PDF描述
ST72T633K1B1 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32
ST72T251G2B3 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP32
ST72T311R6T6 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP64
ST92E163N4D1E 16-BIT, UVPROM, 24 MHz, MICROCONTROLLER, CDIP56
ST6262BN1/XXX 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO16
相关代理商/技术参数
参数描述
ST72C334J2B6 功能描述:8位微控制器 -MCU Flash 8K SPI/SCI 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
ST72C334J2T6 功能描述:8位微控制器 -MCU Flash 8K SPI/SCI 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
ST72C334J4B6 功能描述:8位微控制器 -MCU Flash 16K SPI/SCI 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
ST72C334J4T6 功能描述:8位微控制器 -MCU Flash 16K SPI/SCI 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
ST72C334J4T6/TR 制造商:STMicroelectronics 功能描述: