Description: established in 8359 to address two port 60H, 61H, use Route interrupt source, P value will cause connected with the SP. Interrupt trigger for 2500, every time the button AN produce a signal interruption. A 8259 issued to the interrupt request signal. If the interrupt source-level signals do not meet requirements on the 7th was interrupted to show that "Err." CPU interrupt response, after a break in service, the interruption frequency count and showed that the expiration of five times over, The display shows "Good."
- [interruptedPrincipleand8259Ainterruptcontrol] - This is the communication interface expe
- [8259] - interface when writing small programs an
- [8259a] - Programmable Interrupt Controller Interr
- [dpjDOC] - SCM has become the electronic system of
- [511] - each of the matrix elements known as a p
- [clock0510] - 1. The realization of a second timing. S
- [8259] - Verify 8259 interrupt interrupted introd
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