Hardware in tempts, A-14, A-14 specifications – Epson 4000 User Manual
Page 129: Hardware interrupts
Hardware In tempts
Hardware interrupts
IRQ no.
Function
IRQ0
Timer output
IRQl
Keyboard
IRQ2
Cascade from IRQ controller 2
IRQ3
Serial port 2
IRQ4
Serial port 1
IRQ5
Parallel port 2
IRQ6
FDD controller
IRQ7
Parallel port 1
IRQ8
IRQ9
IRQl0
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
Real-time clock
Reserved
Reserved
Reserved
PS/2 mouse
Math coprocessor
HDD controller
Reserved
A-14 Specifications