10
9 Appendix B - AMX/Creston
General command structure:
F0h | <command byte h> <data byte h> | F7h |
There are three types of commands: Set, Get and Report:
-Set: these commands are used to change the status of the power supply (e.g. set the volume). The supply answers with a Report.
-Get: these commands are used to find out the status of the power supply. The supply answers with a Report. The status of the supply is NOT changed.
-Report: these commands are sent from the power supply anytime the status of the supply changes (e.g. you turn up the volume at the power supply). It is also sent from the supply after a Set or Get command.
Command byte | Data byte | Description | |
|
|
|
|
Set commands |
|
|
|
|
|
|
|
|
|
| Set the input level, |
01h | 01h | to 1Eh | 01h=mute |
|
|
| 1Eh=highest level |
02h |
| Increase input level by one step | |
|
|
|
|
03h |
| Decrease input level by one step | |
|
|
|
|
|
|
| Set the output level, |
04h | 01h | to 1Eh | 01h=mute |
|
|
| 1Eh=highest level |
05h |
| Increase output level by one step | |
|
|
|
|
06h |
| Decrease output level by one step | |
|
|
|
|
07h |
| 00h | Switch input off |
| 01h | Switch input on | |
|
| ||
|
|
|
|
08h |
| Toggle input on/off switch | |
|
|
|
|
09h |
| 00h | Switch output off |
| 01h | Switch output on | |
|
| ||
|
|
|
|
0Ah |
| Toggle output on/off switch | |
|
|
|
|
English | 22 |
