Denon DN-A7100 - Manual (Page 43)

39
ENGLISH
Examples of the handshaking fl owchart
• Example of successful handshaking
HOST SLAVE
Command
Related
Status answer
Command
acceptable
ACK or
Status request
Status answer
Request
acceptable
Auto status
feedback
Changed
some status!
The product can reply ACK instead of related status, if the product can not send the related status
immediatly.
• Examples of handshaking error
HOST SLAVE
Command
Status request
Command
incorrect
NAK
Request
incorrect
NAK
RECOMMENDATIONS OF COMMAND, STATUS AND LAYER DEFINITION
- All Commands, Statuses and Layers will be defi ned other specifi c document.
- [MANDATORY] The product MUST have Commands and the Statuses same as a remote controller buttons
(IR controller) of the product.
- All commands are required working by discreate as ON/OFF commands. (It means that do not support
TOGGLE command only.)
- All Commands and Statuses are defi ned same character size except ACK/NAK on the product.(Recommended
character length : 3~6 characters)
- It permits attaching 0x0A character to reply characters from the product. In this case, must suppose that the
object is followed altogether.
- Recommend to supports numbers or values direct setting command, if it has variable numbers or values.