🚀 go-pugleaf

	In response to the person asking about the 8259 interrupt
	controller .....  
	  I don't know much about the 8051 except that it's popular
	as hell right now.  
	  Yes, if the 8051 is capable of accepting interrupt signals
	and has the ability to vector a particular interrupt to a 
	specific service routine, the 8259 is the chip to use.
	  Since the 8051 is an Intel micro, I would assume that if it
	has interrupt pins you're all set.  Do not use the Zilog PIO
	chip as someone else suggested, ... it does have interrupt
	generation capability, but works completely differently.  With
	this chip, when it pulls the interrupt line, the Z80 series CPU
	expects the PIO to put the address of the interrupt routine
	on the address bus ... the CPU then picks up operation at that
	address.  The PIO can also only service one or two different
	interrupts per PIO chip while the 8259 can handle 9 different
	ones if memory serves me correctly .....

					Good Luck,
					   Dan Bazinet
					dcb0@bunny.gte.com