參數(shù)資料
型號： VMX51C900
廠商： Electronic Theatre Controls, Inc.
英文描述： Versa Mix 8051 MCU with LCD Controller and ADC
中文描述： 8051反之亦然混合與LCD控制器和ADC的微控制器
文件頁數(shù)： 39/55頁
文件大?。?/td> 2395K
代理商： VMX51C900
VMX51C900
______________________________________________________________________________________________
www.ramtron.com
page 39 of 55
IT1 = 1: The INT1, if enabled, occurs if a high-to-low
transition is detected on P3.3
The state of the external interrupt, when enabled, can
be monitored using flags IE0 and IE1 of the TCON
register that are set when the interrupt condition
occurs.
In cases where the interrupt is configured as edge
triggered, the associated flag is automatically cleared
when the interrupt is serviced. If the interrupt is
configured as level sensitive, the interrupt flag must be
cleared by the software.
Timer0 and Timer1 Interrupts
Both Timer0 and Timer1 can be configured to generate
an interrupt when a rollover of the timer/counter occurs
(exception is Timer 0 in Mode 3).
The TF0 and TF1 flags serve to monitor timer overflow
occurring intimers 0 and 1. These interrupt flags are
automatically cleared when the interrupt is serviced.
Timer 2 interrupt
A Timer 2 interrupt can occur if the TF2 and/or EXF2
flags are set to 1 and if the Timer 2 interrupt is
enabled. The TF2 flag is set when a rollover of the
Timer 2 counter/timer occurs. The EXF2 flag can be
set by a 1 to 0 transition on the T2EX pin by the
software.
Note that neither flag is cleared by the hardware upon
execution of the interrupt service routine. The service
routine may have to determine whether it was TF2 or
EXF2 that generated the interrupt. These flag bits will
have to be cleared by the software.
Every bit that generates interrupts can either be
cleared or set by the software, yielding the same result
as when the operation is done by the hardware. In
other words, pending interrupts can be cancelled and
interrupts can be generated by the software.
Serial Port Interrupt
The serial port can generate an interrupt upon byte
reception or when byte transmission is completed.
Both conditions share the same interrupt vector and it
is up to the user-developed interrupt service routine
software to determine what caused the interrupt by
examining the serial interrupt flags RI and TI.
Note that neither of these flags are cleared by the
hardware upon execution of the interrupt service
routine. The flags must be cleared by the software.
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相關代理商/技術參數(shù)
參數(shù)描述
VMX51C900-25-L 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 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
VMX51C900-25-LG 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 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
VMX51C900-25-L-G 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Versa Mix 8051 MCU with LCD Controller and ADC
VMX51C900-25-P 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 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
VMX51C900-25-PG 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據 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
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