8 msg, 9 mute, 10 nop – Mark Levinson 512 User Manual

Page 14: Mute

Advertising
background image

N

o

512 CD/SACD Player Serial Communications Protocol

Mark Levinson

7.8 MSG

Command

Parameter

Function

Incoming Request

Outgoing Response

Comment

MSG

Up to 12 ASCII
Character MSG

Display MSG on Front Panel

MSG:HELLO\r

MSG:ACK\r

No colon, no lower case

CLEAR

Clear displayed MSG and return
to normal display

MSG:CLEAR\r MSG:ACK\r

?

Query Front Panel display

MSG:?\r

MSG:ON\r

Up to 16 characters can be returned.

EN

Enables Notification of MSG State
Changes

MSG:EN\r MSG:ACK\r

When Notifications are enabled, they
are sent approximately once per
/second while playing.

DIS

Disables Notification of MSG
State Changes

MSG:DIS\r MSG:ACK\r

NTF?

Query Notification State

MSG:NTF?\r

MSG:EN\r

Notification is Enabled

MSG:NTF?\r

MSG:DIS\r Notification

is

Disabled

MSG:NACK\r

The player is in Standby Mode so
commands are ignored.

7.9 MUTE

Command

Parameter

Function

Incoming Request

Outgoing Response

Comment

MUTE

ON

Mute is set ON

MUTE:ON\r

MUTE:ACK\r

OFF

Mute is set OFF

MUTE:OFF\r

MUTE:ACK\r

?

Request Current MUTE state

MUTE:?\r

MUTE:ON\r

Mute State is ON

MUTE:?\r

MUTE:OFF\r

Mute State is OFF

MUTE:NACK\r

The player is in Standby Mode so
commands are ignored.

7.10 NOP

Command

Parameter

Function

Incoming Request

Outgoing Response

Comment

NOP

NOP

No operation is performed NOP:NOP\r

NOP:ACK\r

Used for testing communication.

The command responds if the player
is in Standby mode. However, the
command does NOT change the
Standby mode state.


14

Advertising