WebDEPARTMENT OF THE AIR FORCE . Headquarters US Air Force Washington, DC 20330-1030 . CFETP . 3F2X1 Parts I & II 22 Aug 2024 . AFSC 3F2X1 . Education and Training WebExample 2: Write a program to generate a square wave of 1KHz frequency on OUT 1 pin of 8253/54. Assume CLK1 frequency is 1MHz and address for control register = 0BH, counter 1 = 09H and counter 2 = 0AH. 1 MHz = 1000 Sol. : To get square wave mode 3 is selected count should be 1 KHz Control word : D7 D6 D5 D4 D3 D2 D1 D0 SC1 0 SC2 1 RW1 RW0 1 …
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WebIN AL,82h ;read the control word MOV AH,AL IN AL,82h OR AL,AH ;check if the count is zero? JNZ READ. 7 8254 Modes Count reaches zero the out goes high can be used as interrupt, counting can be temp interrupted Single pulse out at end of count. the count is reloaded at the end. Goes on until a new count ... WebFeb 23, 2015 · rem Example: Create example.com executable file. rem The definition of the following variable activate the creation of listing .lst file. setlocal. set .list=1. rem The name of the .com file preceded by colon must appear after "goto" in. rem "call :asm" line as shown below; the assembly source code starts at next line. daily planning notepad
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WebOct 20, 2014 · Basic Description of the 8255 • Its three I/O ports (labeled A,B, and C) are programmed in groups of 12 pins : • Group A connections consist of port A (PA7-PA0) and the upper half of port C (PC7-PC4) • Group Bconsists of port B (PB7-PB0) and the lower half of port C (PC3-PC0) • The 8255 is selected by its CS pin for programming, for reading or … WebProduct details. The Achilles 122 tire is an all season performance tire with plenty of performance like high speed handling and driving comfort for sports cars and sedans. The multi-sipe design and wide grooves gives grip on wet roads. The benefit of multi-sipe design is that there are plenty of grooves for wet grip without compromising the ... WebAIM: Read the status of two 8-bit inputs (X & Y) from the Logic Controller Interface and display X*Y..MODEL SMALL.CODE MOV DX,9803H MOV AL,82H OUT DX,AL MOV DX,9801H IN AL,DX MOV BL,AL IN AL,DX MUL BL MOV DX,9800H OUT DX,AL MOV AL,AH OUT DX,AL MOV AH,4CH INT 21H END. MICROPROCESSOR LAB (10CSL48) DEPT. OF COMPUTER … daily planner templates free printable