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LA9230 Folha de dados(PDF) 11 Page - Sanyo Semicon Device |
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LA9230 Folha de dados(HTML) 11 Page - Sanyo Semicon Device |
11 / 20 page Microprocessor Command List MSB LSB Command Reset mode Power on mode DSP 00000000 RESET RESET(NOTHING) 00001000 FOCUS START FOCUS START #1 11110000 11111000 11111111 2BYTE-COMMAND DETECT 2BYTE-COMMAND DETECT 2BYTE-COMMAND RESET 2BYTE-COMMAND DETECT 2BYTE-COMMAND DETECT 2BYTE-COMMAND RESET 10010000 FOCUS-OFFSET ADJUST START — 10010001 FOCUS-OFFSET ADJUST OFF V — 10010010 TRACK-OFFSET ADJUST START — 10010011 TRACK-OFFSET ADJUST OFF V — 10010100 10010101 LASER ON LASER OFF : F-SERVO ON — — 10010110 LASER OFF : F-SERVO OFF V — 10010111 SPINDLE 8CM — 10011000 SPINDLE 12 CM V — 10011001 SPINDLE OFF — 10011010 SLED ON V — 10011011 SLED OFF — 10011100 E/F BALANCE START Nonadjusted — 10011101 TRACK-SERVO OFF V — 10011110 TRACK-SERVO ON — Notes Concerning Microprocessor Program Creation 1. Commands After sending the FOCUS START command and the E/F BALANCE START command, send 11111110 (FEH) in order to clear the internal registers of the IC. Reason: Although the above commands are executed at point 1 in the timing chart below, the same commands will be executed again at point 2 if there is subsequent input to CE as shown below. When sending a TRACK-OFFSET ADJUST START command or a FOCUS-OFFSET ADJUST START command after either VCC ON (POWER ON RESET), RESET command, or a corresponding OFFSET ADJUST OFF command, waiting time is necessary as listed below. (Only when a 4.2 MHz clock is input.) TRACK-OFFSET ADJUST START: 4 ms or more FOCUS-OFFSET ADJUST START: 30 ms or more 2. E/F balance adjustment E/F balance adjustments should be made in a bit region of the disc, not a mirrored region. (This is because the E/F balance adjustment entails about 100 to 200 track kicks.) Since there is no track-kick for LA9231M, measures must be taken during EF balance adjustment to obtain a stable TE signal. (By a sled movement signal from a microprocessor, for example.) Timing 2 µs or more 1 µs or more 10 µs or more 1 µs or more 2 µs or more ‘‘FOCUS START’’ command ‘‘E/F BALANCE START’’ command LA9230M/9231M No.5189 - 11/20 |
Nº de peça semelhante - LA9230 |
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Descrição semelhante - LA9230 |
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