Différences

Ci-dessous, les différences entre deux révisions de la page.

--- back2root:ibm-pc-ms-dos:hardware:8259 [2022/12/29 02:57] – [8259 Programmable Interrupt Controller Notes] frater
+++ back2root:ibm-pc-ms-dos:hardware:8259 [2022/12/29 12:59] – [Initialization Command Word 4 at Port 21h and A1h] frater
@@ Ligne 1: / Ligne 1: @@
+~~TOC 1-4 ~~
 ====== 8259 - Programmable Interrupt Controller (PIC) ======
@@ Ligne 46: / Ligne 48: @@
  `-------------- unused (set to zero)
 </code>
 ^  Bits       |^ Buffering Mode                  ^
@@ Ligne 103: / Ligne 107: @@
   * ISR - In Service Register, tracks IRQ line currently being serviced. \\ Updated by EOI command.
-===== Hardware Interrupt Sequence of Events: ======
+====== Hardware Interrupt Sequence of Events: ======
   - 8259 <A HREF="int_table.html">IRQ</A> signal is raised high by hardware setting the corresponding IRR bits true.