參數(shù)資料
型號： ST72C314J2
英文描述： 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY. ADC. 16-BIT TIMERS. SPI. SCI INTERFACES
中文描述： 8位單電壓閃存微控制器。 ADC的。 16位定時器。的SPI。脊髓損傷接口
文件頁數(shù)： 95/153頁
文件大?。?/td> 1988K
代理商： ST72C314J2
ST72334J/N, ST72314J/N, ST72124J
46/153
13 MISCELLANEOUS REGISTERS
The miscellaneous registers allow control over
several different features such as the external in-
terrupts or the I/O alternate functions.
13.1 I/O PORT INTERRUPT SENSITIVITY
The external interrupt sensitivity is controlled by
the ISxx bits of the MISCR1 miscellaneous regis-
ter. This control allows to have two fully independ-
ent external interrupt source sensitivities.
Each external interrupt source can be generated
on four different events on the pin:
s
Falling edge
s
Rising edge
s
Falling and rising edge
s
Falling edge and low level
To guarantee correct functionality, the sensitivity
bits in the MISCR1 register must be modified only
when the I bit of the CC register is set to 1 (inter-
rupt masked). See I/O port register and Miscella-
neous register descriptions for more details on the
programming.
13.2 I/O PORT ALTERNATE FUNCTIONS
The MISCR registers manage four I/O port miscel-
laneous alternate functions:
s
Main clock signal (fCPU) output on PF0
s
A beep signal output on PF1 (with 3 selectable
audio frequencies)
s
SPI pin configuration:
–SS pin internal control to use the PC7 I/O port
function while the SPI is active.
These functions are described in detail in the Sec-
Figure 28. Ext. Interrupt Sensitivity
ei2
INTERRUPT
SOURCE
IS10
IS11
MISCR1
SENSITIVITY
CONTROL
PB1
PB2
PB0
PB3
PB5
PB6
PB4
PB7
ei3
ei0
INTERRUPT
SOURCE
IS20
IS21
MISCR1
SENSITIVITY
CONTROL
PA1
PA2
PA0
PA3
PF1
PF2
PF0
ei1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST72C314J2B1 制造商:STMicroelectronics 功能描述:ST72FLASH 8K - Bulk
ST72C314J2T6 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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
ST72C314J4B1 制造商:STMicroelectronics 功能描述:ST72FLASH 8K - Bulk
ST72C314J4B6 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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
ST72C314J4T1 制造商:STMicroelectronics 功能描述:ST72FLASH 8K - Bulk
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