參數(shù)資料
型號(hào)： ST72T141K2M3XXX
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO34
封裝： 0.300 INCH, PLASTIC, SO-34
文件頁數(shù)： 66/132頁
文件大小： 1494K
代理商： ST72T141K2M3XXX
ST72141K
39/132
MISCELLANEOUS REGISTER (Cont’d)
7.4 Miscellaneous Register Description
MISCELLANEOUS REGISTER (MISCR)
Read /Write
Reset Value: 0000 0000 (00h)
Bit 7 = XT16
MTC and SPI clock selection
This bit is set and cleared by software. The maxi-
mum allowed frequency is 4MHz.
0: MTC and SPI clock supplied with fOSC/2
1: MTC and SPI clock supplied with fOSC/4
Bit 6 = SSM
SS mode selection
This bit is set and cleared by software.
0: Normal mode - the level of the SPI SS signal is
the external SS pin.
1: I/O mode, the level of the SPI SS signal is read
from the SSI bit.
Bit 5 = SSI
SS internal mode
This bit replaces the SS pin of the SPI when the
SSM bit is set to 1. (see SPI description). It is set
and cleared by software.
Bits 4:3 = IS1[1:0]
EI1 sensitivity
The interrupt sensitivity defined using the IS1[1:0]
bits combination is applied to the EI1 external in-
terrupts. These two bits can be written only when
the I bit of the CC register is set to 1 (interrupt
masked).
EI1: Port B
Bits 2:1 = IS0[1:0]
EI0 sensitivity
The interrupt sensitivity defined using the IS0[1:0]
bits combination is applied to the EI1 external in-
terrupts. These two bits can be written only when
the I bit of the CC register is set to 1 (interrupt
masked).
EI0: Port A
Bit 0 = SMS
Slow mode select
This bit is set and cleared by software.
0: Normal mode. fCPU = fOSC / 2
1: Slow mode. fCPU = fOSC / 32
See sections on low power consumption mode
and MCC for more details.
Table 9. Miscellaneous Register Map and Reset Values
70
XT16 SSM
SSI
IS11
IS10
IS01
IS00
SMS
IS11 IS10
External Interrupt Sensitivity
0
Falling edge & low level
0
1
Rising edge only
1
0
Falling edge only
1
Rising and falling edge
IS01 IS00
External Interrupt Sensitivity
0
Falling edge & low level
0
1
Rising edge only
1
0
Falling edge only
1
Rising and falling edge
Address
(Hex.)
Register
Label
7654
3210
0020h
MISCR
Reset Value
XT16
0
SSM
0
SSI
0
IS11
0
IS10
0
IS01
0
IS00
0
SMS
0
相關(guān)PDF資料
PDF描述
ST72T141K2MARE 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDSO34
ST7FL09Y0MATRE 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16
ST7FL09Y0MBE 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16
ST7FL05Y0MAE 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PDSO16
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72T141K2M6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T212G2B6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
ST72T212G2M6 功能描述:8位微控制器 -MCU OTP EPROM 8K SPI RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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