http://desmond.imageshack.us/Himg217/scaled.php?server=217&filename=asmhelp.jpg&res=medium
Can anyone help me with ASM programming of 80C188?
I am not sure how i can program this 80C188 chip to "communicate" with 8255A. A part of the schematic is shown in the link above.
But anyway, i just started learn ASM language but i am confuse on how to program the chip.
How can i turn a particular pin eg.PCS1 to high/low(80C188). From what i have learnt and understand, i need to first find register controlling that pin then load address + offset of that pin?
(asm program idea)
LEA ax,___H ;some address which set PCS1 = high?
OUT ax ; output it
Maybe someone can give me an example or guide on this. A maybe a sample code of coding 80C188.
Thanks
Can anyone help me with ASM programming of 80C188?
I am not sure how i can program this 80C188 chip to "communicate" with 8255A. A part of the schematic is shown in the link above.
But anyway, i just started learn ASM language but i am confuse on how to program the chip.
How can i turn a particular pin eg.PCS1 to high/low(80C188). From what i have learnt and understand, i need to first find register controlling that pin then load address + offset of that pin?
(asm program idea)
LEA ax,___H ;some address which set PCS1 = high?
OUT ax ; output it
Maybe someone can give me an example or guide on this. A maybe a sample code of coding 80C188.
Thanks