LG GCE-8240B Service Manual page 31

Pin Name Pin #
RX 191
TX 192
CE 204
LDON /
141
NDIVOUT
TC 193
FLAGA 142
FLAGB 145
FLAGC 146
FLAGD 149
2.4.5 CD-DSP INTERFACE
CD-DSP INTERFACE
Pin Name Pin #
EFM 163
ASY 162
EFMR1 159
EFMR2 160
EFMR3 161
MONIT /
133
PLCK
T ype
I
RP Zero Crossing: Used for fine search.
S
TE Zero Crossing: Track crossing signal input used in conjunction with RX
I
S
to perform fine searches.
I
Center Position Error
A
Laser Diode On / CAV Write N Divider: MUXing of this pin is controlled by bit
O
ATIPN (18Fh.7). - Not used.
Track Count Input: High-frequency track crossing signal input used to
I
S
perform rough searches and to increment the internal track counter.
Servo Monitor Flag A: FLAGA is used to output one of four internal servo
O
signals. FLAGA can also be used as a general output port.
Servo Monitor Flag B: FLAGB is used to output one of four internal servo
O
signals. FLAGB can also be used as a general output port.
Servo Monitor Flag C: FLAGC is used to output one of four internal servo
O
signals. FLAGC can also be used as a general output port.
Servo Monitor Flag D: FLAGD is used to output one of three internal servo
O
signals. FLAGD can also be used as a general output port.
Typ e
I
EFM Analog Data
A
O
Asymmetry DAC Output
A
I
EFM Analog Data Bias 1
A
I
EFM Analog Data Bias 2
A
I
EFM Analog Data Bias 3
A
CD-DSP Monitor Output: MONIT is used to output several internal CD-DSP
O
signals.
Description
Description
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