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11. DN-60A RS-232 Controller Command Set
Rev 3.1 July 29, 2006
Communication Format:
Mode:
No synchronization
Character Length:
1 start bit + 8 data bits + 1 parity bit + 1 stop bit
Data Rate:
38,400 Baud
Parity:
Odd
Command Format:
CMD1, CMD2, Data bytes …, Checksum byte
A Command is made up of two address bytes, CMD1 and CMD2, a variable
number of Data bytes (Data from 0 up to 15) and a Checksum byte. The
Checksum byte is the modulo 256 sum of all preceding bytes. The most
significant nibble of the CMD1 byte represents the command group. The
least significant nibble represents the number of Data bytes to follow the
CMD2 byte.
Command Protocol:
CMD1, CMD2, Data bytes …., Checksum byte
Response: ACK
Other than the sense command, the unit will respond to all commands
affirmatively by sending a three byte acknowledgement (ACK) if the
Checksum is valid. If the Checksum is not valid, the DN-60A will ignore the
command. Most commands will be responded to within 8 msec. However, a
PLAY command from an idle state will result in response delay of up to 700
msec. During this busy time, all commands will be ignored.
Summary List of Commands
Command
Name
Response
Name
System Control
00h, 11h, 11h
Device Type
Request
12h, 11h, 00h,
00h, 23h
Device Type
Summary of Contents for DN-60A
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