MN662785TBUC Datasheet, PDF (37/89 Pages) Panasonic Semiconductor – LSI FOR COMPACT DISC/CD ROM PLAYER

MN662785TBUC


(E)-7 Forced gain-up setting
ɹɹ The IC can be in forced gain-up mode by accessing the data in 81h address.
This mode is reset by accessing the data in 80h address. ɹɹɹɹɹɹ
Data
(D7 to D0)
Address Command
(HEX)
(HEX)
(A7 to A0) (B7 to B0)
Table 7-1-4 (16)
Function
̭ ̭ ̭ ̭ ɹ̭ ̭ ̭ ̭
̭ ̭ ̭ ̭ ɹ̭ ̭ ̭ ̭
81
80ɹ ɹ
F2ɹ ɹ ^{Focus / tracking forced gain-up setting}
(Data is disabled.)
Focus / tracking normal gain
(Data is disabled.)
Note) ɾThe status of the VDET can be monitored through the EXT1 pin. For details, refer to
7-1 (5) (I).
ɾSending a fine gain adjustment command resets the gain to the normal value.
(E)-8 Software reset
ɹɹ Accessing the data in AAh address initializes servo processing.
(DSP processing starts from the top address.)ɹɹɹɹɹɹɹɹɹɹɹɹɹɹɹ
Table 7-1-4 (17)
Data
(D7 to D0)
Address Command
(HEX)
(HEX)
(A7 to A0) (B7 to B0)
Function


̭ ̭ ̭ ̭ ɹ̭ ̭ ̭ ̭ɹ ɹ AA
F2
Software reset (Data is disabled.)
Note) Only the digital servo section is reset in the software reset operation.
SDD00026AEM
37