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1.4 Commands and Messages
1.4.1 Group 1 - Control Commands
Command
Command Description
Command Data
Example
Number
01
Source Select
1 – CD playback, 2 - SPDIF1, 3 - SPDIF2
#1,01,2\r - Select SPDIF 2
02
Input Select Up
No Data
#1,02,\r - Next input up
03
Input Select Down
No Data
#1,03,\r -Next input down
04
Get Input Word Width
No Data
#1,04,\r - Get word width
05
Get Input Sampling Frequency
No Data
#1,05,\r - Get sampling frequency
06
Digital Output Select
1 - DSP Upsample
#1,06,2\r - Select pass through
2 - Pass Through
07
Digital Output Select Toggle
No Data
#1,07,\r - Select other output
08
Digital Output Word Width
1 - 16 bits, 2 - 20 bits, 3 - 24 bits
#1,08,2\r - Set to 20 bits
09
Digital Output Word Width Up
No Data
#1,09,\r - Next word width up
10
Digital Output Word Width Down
No Data
#1,10,\r -Next word width down
11
Digital Output Sampling Frequency
1 - 48 kHz, 2 - 96 kHz, 3 - 192 kHz
#1,11,3\r - Set to 192 kHz
12
Digital Output Sampling Frequency Up
No Data
#1,12,\r - Next frequency up
13
Digital Output Sampling Frequency
Down
No Data
#1,13,\r -Next frequency down
14
Power State
0 - Standby, 1 - On
#1,14,0\r - Put 840C in standby
15
LCD Brightness
0 - Off, 1 - Dim, 2 - Bright
#1,15,2\r - Set LCD bright
16
Play
No Data
#1,16,\r - Play
17
Pause
No Data
#1,17,\r - Pause
18
Stop
No Data
#1,18,\r - Stop
19
Track Skip Forward
No Data
#1,19,\r - Track skip forward
20
Track Skip Backward
No Data
#1,20,\r - Track skip backward
21
Search Forward
No Data
#1,21,\r - Search forward
22
Search Backward
No Data
#1,22,\r - Search backward
23
Search Stop
No Data
#1,23,\r - Search stop
24
Track Number
01 to 99
#1,24,10\r - Enter track number 10
25
Open / Close Toggle
No Data
#1,25,\r - Open / close
