Appendix c: serial interface specifications, 4. opcode byte & data bytes – EverFocus EDSR-400 User Manual
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2-4. Opcode Byte & Data bytes
2-4-1. OPcode
OPcode
Data1
Function
0x4B
Keycode
A remote key pressed
0x4D
command
Matrix command
2-4-2. Remote keys (OPcode=0x4B)
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Data1 Key
Data1 Key
0x00 CH1
0x01 CH2
0x02 CH3
0x03 CH4
0x04 MODE
0x05 ZOOM
0x06 SEQ
0x07 MENU
0x08 REC
0x09 REV.PLAY
0x0A STOP
0x0B PLAY
0x0C PAUSE
0x0D SEARCH
0x0E COPY
0x0F DISPALY
0x10 SHUTTLE< 0x11 SHUTTLE< 0x12 SHUTTLE< 0x13 SHUTTLE< 0x14 SHUTTLE< 0x15 SHUTTLE< 0x16 SHUTTLE< 0x17 SHUTTLE>>x1 0x18 SHUTTLE>>x2 0x19 SHUTTLE>>x4 0x1a SHUTTLE>>x8 0x1b SHUTTLE>>x16 0x1c SHUTTLE>>x32 0x1d SHUTTLE>>x600 0x1e JOG< 0x1f JOG> 0x20 CH5 (EDSR600) 0x21 CH6 (EDSR600) 0x22 (reserve) 0x23 (reserve) 0x24 (reserve) 0x25 (reserve) 0x26 (reserve) 0x27 (reserve) 0x28 (reserve) 0x29 (reserve) 0x2a (reserve) 0x2b (reserve) 0x2c SELECT 0x2d CALL 0x2e ENTER 0x2f (reserve) 0x30 (reserve) 0x31 (reserve) 0x32 (reserve) 0x33 (reserve) 0x34 (reserve) Appendix C: Serial Interface Specifications 2-5. Checksum Byte Checksum is computed as the sum of all previous butye (includeing the length byte), then mask with 0x7f.