Documents PIC &PPI

Slide 1 PIC &PPI PPI Mode 2 with PIC(8259) OCW1 OCW2 OCW3 INTA waveform Address Decoding for the Peripherals 8086 8255A PPI A0 A1 Latch (â373) Decoder Y0 Y1 Y2 Y3 Y4…

Documents PPI Mode2

Slide 1 PPI Mode2 Hardware/Software Example Treating Even and Odd Ports CS1 Decoder Decoder CS1 CS1 CS2 CS2 Odd Port Even Port 8-bit data from Even Port MOV DX,4000H IN AL,[DX]…

Documents Interrupt Controller

Slide 1 Interrupt Controller Introduction to 8259 Poll Method Interrupt Method Features of 8259 8086, 8088 Compatible MCS-80, MCS-85 Compatible Eight-Level Priority Controller…