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SOUND MASTER II

COVOX INC.

SOUND MASTER II

Card Type

Sound Card

Chipset/Controller

YM3812

I/O Options

Line in (2), microphone jack, MIDI port, volume control

Maximum DRAM

N/A

CONNECTIONS

Purpose

Location

Purpose

Location

Volume control

CN1

PC speaker connector

CN4

Speaker jack

CN2

Microphone jack

M1

Game/MIDI port

CN3

Line in 2

M2

INTERRUPT SELECT

IRQ

J3

J4

J5

J6

J7

IRQ7

Open

Open

Open

Open

Closed

 

IRQ6

Open

Open

Open

Closed

Open

 

IRQ5

Open

Open

Closed

Open

Open

 

IRQ4

Open

Closed

Open

Open

Open

 

IRQ3

Closed

Open

Open

Open

Open

MIDI INTERRUPT SELECT

IRQ

J8

J9

J10

J11

IRQ2

Closed

Open

Open

Open

 

IRQ3

Open

Closed

Open

Open

 

IRQ5

Open

Open

Closed

Open

 

IRQ7

Open

Open

Open

Closed

I/O ADDRESS SELECT

Address

J12

J13

J14

J15

22Xh

Closed

Open

Open

Open

 

24Xh

Open

Closed

Open

Open

 

28Xh

Open

Open

Closed

Open

 

2CXh

Open

Open

Open

Closed

DRQ SELECT

DRQ

J16

J17

DRQ1

Open

Closed

 

DRQ3

Closed

Open

DACK SELECT

DACK

J18

J19

DACK1

Open

Closed

 

DACK3

Closed

Open

FM PORT ADDRESS SELECT

Address

J1

388h

Pins 1 & 2 closed

 

380h

Pins 2 & 3 closed

MIDI PORT ADDRESS SELECT

Address

J2

330h

Pins 1 & 2 closed

 

338h

Pins 2 & 3 closed