83
DEH-P840MP,P8400MP,P8450MP
Pin No.
Pin Name
I/O
Function and Operation
69
cas)
O
Output of DRAM Lower CAS
70
cas!
O
Output of DRAM Upper CAS
71
we
O
Output of DRAM WE
72
oe
O
Output of DRAM OE
73-88
RDB0-15
I/O
Input/output of DRAM Data0-15
89
D.GND
Ground for digital circuits
90-99
RA0-9
O
Output of DRAM Address0-9
100
D.VDD
Power supply for digital circuits
101-104
TEST0-3
I
Connected to GND
105
FD
O
Output of focus drive PWM
106
TD
O
Output of tracking drive PWM
107
SD
O
Output of thread drive PWM
108
MD
O
Output of spindle drive PWM
109
A.VDD
Power supply for the analog system
110
ATEST
O
Analog tests
111
EFM
O
Output of EFM signals
112
ASY
I
Input of asymmetry
113
C3T
Connection to the capacitor for detecting 3T
114
A.GND
Ground for the analog system
115
RFI
I
Input of RF
116
AGCO
O
Output of RF
117
AGCI
I
Input of AGC
118
RFO
O
Output of RF(AGC)
119, 120
EQ2, 1
Equalizer 2, 1
121
RF2-
I
Reversal input of RF2
122
RF-
I
Reversal input of RF
123
A.GND
Ground for the analog system
124
A
I
Input of A
125
C
I
Input of C
126
B
I
Input of B
127
D
I
Input of D
128
F
I
Input of F
129
E
I
Input of E
130
A.VDD
Power supply for the analog system
131
REFOUT
O
Output of reference voltage
132
REFC
Connected to the capacitor for output of REFOUT
133
FE-
I
Reversal input of FE
O
Output of FE
I
Reversal input of TE
O
Output of TE
O
TE2
I
TEC
Ground for the analog system
O
Output of REG voltage for APC
I
Input of PD
O
Output of LD
I
Assignment of pickup polarity
Power supply for the analog system
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