<JLIP technical information>
Content of return data for each command
Return data for a command is like this sytle below.
They are used in 11 bytes included ID number of controlled device and check sum data.
Return data that are shown as 'xxh' and other data in the table are specified in the
explanation below.
return data
1st
2nd 3rd
4th 5th 6th 7th 8th 9th 10th 11th
general return
FCh FFh (ID) xxh xxh xxh xxh xxh xxh xxh
(sum)
Below is the explanation of important part of return data for making software.
It should be ignored some part of return data(byte or bit) that is not explained here.
Return data of Power mode request command
<5th data> Power mode
D0 = 1 : Power ON, D0 = 0 : Power OFF
Standard VTU return data (VTU : Video Tuner)
[5th data] Band infomation
30h : Air(terrestrilal broadcast) 40h : BS(broadcast satellite)
[6th,7th,8th data] channel number
6th = 51h : real channel
channel number = (7th)x100+(8th)
6th = 53h : preset channel
channel number(non bank) = (7th)x100+(8th)
channel number(by bank) = 8th , bank number (1 to 10) = (7th)-100
Standard VTR return data (VTR = VCR : video cassette recorder)
[5th data] VCR mode
D5 = 1 : Rec inhibited , D5 = 0 : Recordable
D4 = 1 : No tape , D4 = 0 : Tape inserted
D3, D2, D1, D0 : VTR mode
0000b = Eject , 0001b = Stop , 0010b = FF , 0011b = REW,
0101b = Play fwd , 0110b = Play bwd , 0111b = Pause ,
1101b = Rec pause , 1110b = Rec . 1111b = no mode
[6th data] Counter information
D2 = 1 : 25frm/s , D2 = 0 : 30frm/s
D0 = 1 : drop frame mode , D0 = 0 : non drop frame mode
[7th, 8th, 9th, 10th data] counter value
7th : hour , 8th : minute , 9th : second , 10th : frame
Page 1 of 2
JLIP control system developer
7/11/2003
http://www.jvc-victor.co.jp/english/tech/jlip/techinfo_f/techinfo_f1/rtndata1.html
MV8300P RS-232c Protocol Manual