Format; When The Command Pipelining Is Needed; Transfer Example - Canon LV S3 - SVGA LCD Projector Specification

7. Functional Execution Command Table

7.1 Format

1. PC issues a command as below form at
"C"
COMMAND
Command: 2 characters (See Functional Execution Command Table)
2. A projector decodes received data and sends a return result after being ready to receive
next command.
[ACK] [CR]:•i0x06,0x0D•jWhen received functional execution commands.
"?" [CR]: When cannot read received data

7.2 When the command pipelining is needed

When some functions need command pipelining , the performance is the same as the remote
control's performance.
1. System: issue any commands every 100ms after receiving response
2. When receiving the same command continuously with 120ms, the function is executed
for 120ms from that moment.
3. When receiving the same command continuously, with 120ms, the function is executed
for 120ms form the moment.
4. The next command is not issued after 120ms, and the execution is stopped.
5. If the projector receives other incoming commands within 120ms, the execution is
stopped.

7.3 Transfer Example

Change to Video mode with Basic Command
PC Projector
Projector
[CR]
Command
"C"
PC
"0" "7" CR
Processing
(A few ms--1s)
ACK CR
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