Detailed Explanation Of Response "R" Timing When "Pl" Command Is Issued; Command Issuance Interval When ?F ?P Commands Are Used - Pioneer HD-V9000 Technical Manual

5.2. Detailed Explanation of Response "R" Timing when "PL" Command is Issued

DVD-V8000 "R" Response
R is returned when Play is ready.
Example: P01 => PL Receive => Play Ready => Play Start (P04) => R Send
HD-V9000 "R" Response — Firmware Version 2.00 or later
Status goes to P02 and R is immediately returned.
Example: P01=> PL Receive (P02) => R Send => Play Ready => Play Start (P04)
The Play ready time in V9000 varies depending on factors like the content format, bit rate, and
whether or not a MAP file exists.
V 8000
P l ayer（ R xD ）

5.3. Command Issuance Interval when ?F ?P Commands are Used

?F and ?P response times are longer in HD-V9000 as compared to DVD-V8000.
As a result, when commands are sent at the same interval as that for DVD-V8000, there may be cases
where player function response is drastically reduced due to overloaded internal processing.
Therefore, when you use a status command, develop a program so that the next command is issued
after the response status comes in from the V9000, or so that the command-send intervals are set
sufficiently long.
Command Response Time
?F
"?F"⇒"*******<CR>" response time
?P
"?P"⇒"P**<CR>" response time
C om m ander（ TxD ）
P L<C R >
R <C R >
10
-
HD-V9000 Technical Manual Ver. 1.00
V 9000 (ver2. 00)
P l ayer（ R xD ）
DVD-V8000
(Normal) 10msec
(Max) 16msec
(Normal) 10msec
(Max) 16msec
-
C om m ander（ TxD ）
P L<C R >
R <C R >
?P <C R >
P 02<C R >
?P <C R >
P 04<C R >
HD-V9000
(Normal) 20msec
(Max) 600msec
(Normal) 20msec
(Max) 600msec