Cary Audio Design
Cinema 11v Surround Sound Processor
RS-232 Protocol and Control Details
Response data packets from the Cinema 11v to the HOST:
The Cinema 11v provides an Answer Parameters to the HOST when the Cinema 11v has
received a correct command request packet.
Start character : '@'
Return COMMAND : see Data Packet 'Return COMMAND list'.
Return Parameters : see Data Packet 'Return Parameters List'.
End character (CR) : 0Dh
RS232-Interface Usage Details:
The RS-232 interface has a first-in-first-out (FIFO) buffer which will allow each command
to be received in direct succession. Commands are executed in the order in which they are
received with approximately a 1/2 second delay between each command. If a longer string
of commands is necessary, a minimum of 1/2 second delay should be added before sending
additional commands.
The Cinema 11v will send a NAK Response packet if the Cinema 11v has received an
incorrect HOST command packet.
Start character : '@' NAK : ERR End character (CR) : 0Dh
Start
'@'
Start
'@'
End
0Dh
End
0Dh
Return COMMAND
Return Parameters
NAK