Intel Embedded Intel486

4-49
BUS OPERATION
Figure 4-36. DOS-Compatible Numerics Error Circuit
RESET
VCC
5V
VCC
VCC
I/O Port 0F0H
Address decoder
Processor Bus
FERR#
Intel486™
Processor
IGNNE#
INTR
8259A
Programmable
Interrupt
Controller
IRQ13
Q
Q
Q
Q
CLR
CLR
D
D
PR
PR