User's Manual

PMAC User Manual
Writing a Host Communications Program 253
MI2
AXEXP0
EQU6
EQU2
EQU8
EQU4
EQU7
EQU3
E58
E59
E60
E61
E54
E55
E56
E57
E62
E63
E64
E65
MI1
AXEXP1
EQU5
EQU1
IR6
IR7
IR5
IR4
IR3
IR2
IR1
IR0
E76E77E78E79
E80
E81
E82
E83
E84
E86
PC-AT
8259
PIC
PC
8259
PIC
470 ohm
PC-AT
only
ALL
PCs
PMAC
PC
INT
80x86 CPU
HREQ (Read-Ready/Write-Ready)
PMAC
8259
PIC
F1ER
EROR
BREQ
IPOS
(In-Position)
Fatal
(Buffer-Request)
IRQ15
IRQ14
IRQ12
IRQ11
IRQ10
IRQ3
IRQ4
IRQ5
IRQ7
IRQ2
Warning
Following Error
(
(
Following Error
(
(
Figure 54 PMAC PC/PMAC Lite Interrupt Structure