Epson EL 4S/33+

Drive Option Information

Standard diskette drive specifications

DMA Assignments

Level

Assigned

device

DMA0

Reserved

(8-bit)

DMA1

Reserved

(8-bit)

 

FDD controller (8-bit)

DMA3

Reserved

(8-bit)

 

Cascade for DMA controller 1

 

Reserved

(16-bit)

DMA6

Reserved

(16-bit)

DMA7

Reserved

(16-bit)

Hardware Interrupts

IRQ no.

Function

 

lRQ0

Timer output

 

IRQ1

Keyboard

 

IRQ2

Cascade from IRQ controller 2

 

IRQ3

Serial port 2

 

IRQ4

Serial port 1

 

IRQ5

Parallel port 2

 

IRQ6

FDD controller

 

 

 

 

Epson EL 4-S/33+ - 6

12/93