參數(shù)資料
型號(hào): IA6805E2PLC44IR0
廠商: Innovasic Semiconductor
文件頁(yè)數(shù): 5/33頁(yè)
文件大?。?/td> 0K
描述: IC MCU 8BIT 5MHZ 44PLCC
標(biāo)準(zhǔn)包裝: 270
芯體尺寸: 8-位
速度: 5MHz
外圍設(shè)備: POR
輸入/輸出數(shù): 20
程序存儲(chǔ)器類型: 外部程序存儲(chǔ)器
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
IA6805E2
29 August 2007
Microprocessor Unit
As of Production Version 00
Figure 10. Interrupt Mode Diagram
Timer Interrupt:
If the timer mask bit (TCR6) and the interrupt mask bit (I) of the condition code register are
cleared, each time the timer decrements to zero ($01 to $00 transition) an interrupt request is
generated. When the interrupt is recognized, the current state of the machine is pushed onto
the stack and the condition code register I-bit gets set masking further interrupts until the
present one is serviced. The program counter is then loaded with the contents of the timer
interrupt vector, which contains the location of the timer interrupt service routine. The
contents of $1FF8 and $1FF9 specify the address for this service routine. If the MPU is in
the wait mode and a timer interrupt occurs, then the contents of $1FF6 and $1FF7 specify
the service routine. When the timer interrupt service routine is complete, the software
executes an RTI instruction to restore the machine state and starts executing the interrupt
program.
Software Interrupt:
Software interrupt is an executable instruction regardless of the state of the interrupt mask
bit (I) in the condition code register. SWI is similar to hardware interrupts. It executes after
the other interrupts if the interrupt mask bit is zero. The contents of $1FFC and $1FFD
specify the address for this service routine.
Low Power Modes:
The low power modes consist of the stop instruction and the wait instruction. The
following paragraphs explain these modes of operation.
Copyright 2007
IA211081401-03
www.Innovasic.com
Customer Support:
Page 13 of 33
1-888-824-4184
相關(guān)PDF資料
PDF描述
IA82050-PDW28I-R-01 IC ASYNCHRONOUS SERIAL CTRL
IA82510-PDW28I-R-01 IC ASYNCHRONOUS SERIAL CTRL
IA88C00-PLC68I-R-01 IC MCU 8BIT 20MHZ 68PLCC
ICL232MJE IC 2DRVR/2RCVR RS232 5V 16-DIP
ICL3217EIB-T IC 5DRVR/3RCVR RS232 3V 24-SOIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
IA6805E2-PLC44I-R-00 制造商:INNOVASIC 制造商全稱:INNOVASIC 功能描述:Microprocessor Unit
IA6850 制造商:INNOVASIC 制造商全稱:INNOVASIC 功能描述:Asynchronous Communications Interface Adapter (ACIA)
IA6850-PDW24C 制造商:INNOVASIC 制造商全稱:INNOVASIC 功能描述:Asynchronous Communications Interface Adapter (ACIA)
IA6850-PDW24I 制造商:INNOVASIC 制造商全稱:INNOVASIC 功能描述:Asynchronous Communications Interface Adapter (ACIA)
IA70C20 制造商:INNOVASIC 制造商全稱:INNOVASIC 功能描述:8-Bit Microcontroller