LC78626E Datasheet, PDF (28/32 Pages) Sanyo Semicon Device – DSP for Compact Disk Players

LC78626E
A Schematic of the timing of the various signals during the anti-shock operations are shown in the figure below.
Beginning of L point search
L point because of shock Track jump
L point is found. Beginning of writing to the DRAM
L point because the DRAM is full Track jump
26 Anti-shock Independent Reset
It is possible to initialize only the anti-shock controller part (excluding the DSP part) by setting the ASRES pin to
low. The reset is released by setting this pin high. Furthermore, when controlling the independent reset using
commands, the ASRES pin must be tied low (connected to 0 V).
Code
$F4
$F5
COMMAND
Independent reset disable (release)
Independent reset enable/inrush
RES = low
q
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