LG GSA-4167B User Manual
Page 62
66
Encoder Interface Pin List
Serial Communication Interface Pin List
Pin Name
Pin No. I/O
destination
Function
IP1LPPIN
150
I
AFE
PID area identification signal/LPP input signal
IP2MIRR
149
I
AFE
PID area identification signal/MIRR signal
WOBSIG
154
I
AFE
Wobble signal input
LOWZB
153
O
AFE
Input impedance switch control signal/SPDSH; running
OPC sampling pulse (Pit top)
IDGATE
152
O
AFE
ID/data switch signal
RFHLD
151
O
AFE
VFO3 holding signal and track center signal sample &
hold signal
WRGATE2
134
O
AFE
Write gate signal output
WBLSH
129
O
AFE
Wobble signal sampling pulse
MPDSH
128
O
AFE
Main beam sampling pulse
WFPDSH
127
O
AFE
Laser control sampling pulse
(Front monitor write/erase block)
RFPDSH
126
O
AFE
Laser control sampling pulse
(Front monitor read block)
TCSHSPBLV
125
O
AFE
VFO1 track center signal sample & hold pulse;
/SPBLVL running OPC sampling pulse (Pit end)
WRGATEB
138
O
PU
Write gate signal
SRFH
137
O
PU
I- V amplifier gain switch (HI side)
/I- V amplifier gain switch (for binary)
SRFL
136
I- V amplifier gain switch (Low side)
WRSTOP
135
I
PU
Write stop gate signal
LNDTRK
155
O
AFE/PU
Land/groove switch
NRZI
143
AO
PU
NRZI output after modulation (normal phase)
NRZIB
142
NRZI output after modulation (counter phase)
DCLK
140
AO
PU
NRZI sync clock (counter phase)
DCLKB
141
NRZI sync clock (normal phase)
ADIPVR1
101
AO External Cpmponents
AD related pin for ADIP detection
ADIPVRT
102
AO External Cpmponents
AD related pin for ADIP detection
ADIPINP
103
AI
AFE
ADIP detect input pin
Pin Name Pin No.
I/O
destination
Function
LDBUSY
124
IO
LDD
LDD serial IF busy also functions as the CPU general port 1-0
WDEN
123
O
LDD
LDD microcomputer I/F (transfer enable signal)
RFDEN
122
O
AFE
AFE microcomputer I/F (transfer enablesignal)
SDATA
121
IO
AFE/LDD
AFE/LDD microcomputer I/F (transfer data signal 3Vsystem)
SCLK
120
O
AFE/LDD
AFE/LDD microcomputer I/F (transfer clock signal)