SIGNATURE 2.0 (serv.man11) - Harman Kardon Audio User Guide / Operation Manual. Page 13

SIGNATURE

 

B

US 

P

ROTOCOL 

M

ASTER 

D

OCUMENT

Revised 2-24-98

Page 13 of 20

Source

Device Type

Target

Device Type

Target

Unit ID

Source

Unit ID

Command

Modifier

Data

Length

Preamble

Byte

Command

Byte

Data

Byte(s)

Checksum

Byte

30h

20h

01h

01h

01h

06h

7Eh

72h

See below See page 7

Source

Device Type

Target

Device Type

Target

Unit ID

Source

Unit ID

Command

Modifier

Data

Length

Preamble

Byte

Command

Byte

Data

Byte(s)

Checksum

Byte

20h

30h

01h

01h

02h

Computed

7Eh

72h

See below See page 7

uint

spkr_cfg;

// current speaker configuration

uchar

spkr_mutes;

// mask bits for speaker group muting

char

Volume_preset;

// power-on volume setting

Spkr_adj_st

spkr_adjs;

// speaker level adjustments

signed char

center_level;

   

signed char

front_right_level;

   

signed char

front_left_level;

   

signed char

back_right_level;

   

signed char

back_left_level;

   

signed char

subwfr_level;

   

char

front_distance;

   

char

cen_distance;

   

char

back_distance;

char

source;

// currently active source

uint

opFlag;

// general purpose operational flags

char

svidRecSrc;

// used when tracking disabled

char

compvidRecSrc;

// used when tracking disabled

char

audRecSrc;

// used when tracking disabled

char

dsplyTimoutVal;

// seconds counter for VFD/OSD dsply timeout

char

frntPnlSts;

// Off, On, or Timeout

char

frntPnlBrit;

// Dim, Med or High

char

menuBkgrnd;

The Contents of Non-Volatile Memory Request command causes the Target unit to
transmit, in the response, the contents of its non-volatile memory.  Two values are included
in the data segment of the command: an “Offset” data word that determines how many bytes
from the beginning of the Non-Volatile memory structure that the desired data begins, and a
“Length” data word that determines the total number of bytes to be transmitted back to the
Source unit.

NOTE: sending a “Length” data word value of zero will cause the Target unit to respond
with the rest of the structure (from offset to the end) - the number of bytes returned in the
response will reflect the actual number of bytes involved.